National Health and Nutrition Examination Survey

2003-2004 Data Documentation, Codebook, and Frequencies

Bioelectrical Impedance Analysis (BIX_C)

Data File: BIX_C.xpt

First Published: May 2004

Last Revised: December 2009

Component Description

Bioelectrical impedance analysis (BIA) measures the electrical impedance of body tissues and can be used to assess fluid volumes, total body water, and fat-free body mass. The NHANES bio-impedance spectroscopy (BIS) multi-frequency measurements were collected in the BIA examination, together with dual energy x-ray absorptiometry (DXA) scans, as part of the Body Composition component in the Mobile Examination Center (MEC). A small alternating current was passed through surface electrodes placed on the right hand and foot and the impedance to the current flow was measured by different electrodes placed adjacent to the injection electrodes. The voltage drop between electrodes provided a measure of impedance, or opposition to the flow of the electric current.

Variables Available in the BIX Dataset with Descriptions
Variables Available in the BIX Dataset	Variable Description
SEQN	Sequence number
BIAEXSTS	Examination status
BIDFIT	Quality of fit to the Cole model
BIDRECF	Resistance of extracellular fluid (R_e) (ohms)
BIDRICF	Resistance of intracellular fluid (R_f) (ohms)
BIDCM	Cell membrane capacitance (nF)
BIDTD	Time delay (ns)
BIDALPHA	Exponent alpha
BIDFC	Characteristic frequency (F_c) (KHz)
BIDECF	Extracellular fluid (ECF) (L)
BIDTBW	Total body water (TBW) (L)
BIDICF	Intracellular fluid (ICF) (L)
BIDFFM	Fat-free mass (kg)
BIDFAT	Fat mass (kg)
BIDPFAT	Percent body fat (%)
BIXS005K-BIXS1M	Resistance (R) (ohms)
BIXC005K-BIXC1M	Reactance (X) (ohms)

Eligible Sample

The BIA examination was administered to eligible survey participants 8-49 years age. Pregnant females were not eligible for the BIA examination. Other reasons for exclusion from the BIA examination were:

Amputations other than fingers or toes
Artificial joints, pins, plates, or other types of metal objects in the body
Pacemaker or automatic defibrillator
Coronary stents or metal suture material in the heart
Weight over 300 pounds (limitation for examination table)

Pregnancy was determined by a positive urine pregnancy test and/or self-report at the time of the BIA examination. Females between the ages of 12–49 years and menstruating 8–11 year olds were not permitted to take the BIA examination without a negative MEC pregnancy test result. In addition, females aged 12–49 years were excluded from the examination if they said they were pregnant at the time of the exam, even if the pregnancy test was negative.

Protocol and Procedure

The NHANES BIS data were collected with a HYDRA ECF/ICF Bio-Impedance Spectrum Analyzer (Model 4200) manufactured by Xitron Technologies, Inc., San Diego, California. The multi-frequency analyzer uses a full 12-bit digital signal processing technique to measure impedance at 50 frequencies logarithmically spaced from 5KHz to 1 MHz (HYDRA, 1997).

In the Body Composition component, the DXA examination was conducted first, followed by BIA. Both examinations were conducted by trained health technicians. The examination protocol is documented in the Body Composition Procedures Manual on the NHANES website. The collection of raw frequency data (resistance and reactance) took approximately 15 seconds.

A 6-hour fast is recommended by the manufacturer before measurements are performed (HYDRA, 1997). At the time of the BIA examination, survey participants could have consumed a recent meal, been fasting for a blood draw in the MEC, or eaten a light snack in the MEC. The variable PHAFSTHR in the laboratory dataset, Phlebotomy Fasting Questions, provides the time in hours between the survey participant last eating or drinking anything other than water and the time of the blood draw. After the blood draw, the survey participant was offered a small carton of juice and a small box of cookies or crackers while completing other examinations such as BIA. If possible, the blood draw was the first examination performed.

Quality Assurance & Quality Control

Each time the Hydra analyzer was turned on, it performed an automatic internal circuitry self-check that indicated if the device was out of calibration or had a fault. An electronic verification module was used to complete weekly circuit testing. The Body Composition Procedures Manual details the BIA quality control tests performed.

Experienced trainers, National Center for Health Statistics staff, and contractor staff monitored health technician performance in the field. Retraining sessions were conducted with the technicians periodically, as needed, and annually to reinforce the proper protocols and technique.

Data Processing and Editing

The quality of the collected raw frequency data was evaluated through an external Hydra modeling program provided by Xitron Technologies, Inc. (HYDRA, 1997). The program measured resistance and reactance and calculated the reciprocal impedance (Ζ) and phase angle (θ) at each measured frequency.

The Ζ and θ spectra data were fit to a Cole model (Cole, 1997) using iterative non-linear curve-fitting software (De Lorenzo, 1997). The modeling program evaluated the weighted least square error of both Ζ and θ, where the weighting was established by the published accuracy specifications of the machine, and removed any frequency that significantly decreased the total weighted least square error. The expected accuracy at each measured frequency was established as a pair of arrays (Ζ and θ) at the start of the modeling function. The error ratio was then established at each modeling point by dividing the modeling error by the corresponding stored array errors. In addition to the correlation of fit using scalar Z, the program established the accuracy of data fit to the model. Measured height (BMXHT) and weight (BMXWT) from the NHANES Body Measures component were input into the modeling program. The program computed fluid volume once the raw frequency data were modeled and the ECF and ICF resistance obtained.

The Hydra modeling program can have difficulty solving the Cole model when the subject has very little cell membrane capacitance or a very high characteristic frequency (F_c) (HYDRA, 1997). The characteristic frequency of a tissue varies depending on its physical structure. For example, extremely high F_c (>1 MHz) have been reported in severly dehydrated, malnourished infants (Mazariegos, 1998). With an observed F_c near or greater than the limit of measured high frequency data, it is very difficult to accurately compute ICF, although measurement of ECF does not appear to be affected (Finn, 1996).

The modeling program was not used to conduct data analyses or to calculate estimates, but to determine the quality of the data as one step in the quality assurance process. The BIDFIT variable provides the following codes for the accuracy of the fit to the Cole model and data quality:

0 = Excellent fit
1 = Good fit
2 = Marginal fit
3 = Questionable fit
4 = Bad fit
5 = Was not able to be fit
7 = No BIA data available

Volume data were not computed by the modeling program if the fit was rated as “Questionable,” “Bad,” or not able to be fit.

Analytic Notes

Before conducting analyses, users are advised to review the BIDFIT values to identify the quality of the data to be analyzed.

The Hydra equations used to predict ECF and ICF from the modeled extracellular and intracellular resistance used Hanai dielectric mixture theory (Hanai, 1968) and have been validated numerous times (Van Loan, 1993, Patel, 1994, Plank, 1998). However, the validation research was conducted on specific populations with well-designed protocols and under controlled conditions (HYDRA, 1997). The NHANES data user should be aware that the validation research is applicable only to those subject populations and may not be applicable to other subject groups.

Although the technology used by the Xitron Hydra has been used to accurately predict fat-free mass (Van Loan, 1995, Van Loan, 1998), users should be aware that the prediction of fat-free mass with impedance is a second order estimation subject to error and is not strongly advised (HYDRA, 1997). To predict fat-free mass (FFM) by impedance, total body water is assumed to be 73.2%, although there can be variation even among young healthy subjects. Fat-free mass is predicted using the equation (d_ECF V_ECF) + (d_ICF X V_ICF) where d_ECF and d_ICF are the mean densities of the ECF and ICF and their associated materials. Fat mass (FM) was calculated by subtracting FFM by impedance from the participants’ measured weight. Percent fat was calculated by dividing the participants’ FM by their measured weight. Estimation of percent fat is third order and subject to additional error.

Data were deleted for participants whose FFM values were close to or greater than their measured weight, which resulted in negative FM values or extremely low FM values that were not phyisologically possible. Other FM values considered to be very low, however, were retained in the data file. The user should review the FM values in the data file before conducting analyses.

The variable BIAEXSTS indicates examination status.

1 = Examination completed
2 = Examination incomplete
3 = Not examined, pregnant
4 = Not examined, weight > 300 lbs
5 = Not examined, jewelry, other objects not removed or metal in body
6 = Not examined, other reason

The “Not examined, other reason” code includes no time to complete the examination, pregnancy test not completed, and participant refusal, as well as exclusions for reasons other than those listed.

Relationships among examination status codes and BIDFIT codes
BIAEXSTS	BIDFIT	Description and Available BIS Data
1	0	Excellent fit to the Cole model With measured height and weight: all BIS data Without measured height and weight: BIDFIT, BMXBMI: BIDRECF, BIDRICF, BIDCM, BIDTD, BIDALPHA, BIDFC, BIXS005K-BIXS1M, BIXC005K-BIXC1M
1	1	Good fit to the Cole model With measured height and weight: all BIS data Without measured height and weight: BIDFIT, BIDRECF, BIDRICF, BIDCM, BIDTD, BIDALPHA, BIDFC, BIXS005K-BIXS1M, BIXC005K-BIXC1M
1	2	Marginal fit to the Cole model With measured height and weight: all BIS data Without measured height and weight: BIDFIT, BIDRECF, BIDRICF, BIDCM, BIDTD, BIDALPHA, BIDFC, BIXS005K-BIXS1M, BIXC005K-BIXC1M
1	3	Questionable fit to the Cole model With or without measured height and weight BIDFIT, BIDRECF, BIDRICF, BIDCM, BIDTD, BIDALPHA, BIDFC, BIXS005K-BIXS1M, BIXC005K-BIXC1M
1	4	Bad fit to the Cole model With or without measured height and weight: BIDFIT, BIDRECF, BIDRICF, BIDCM, BIDTD, BIDALPHA, BIDFC, BIXS005K-BIXS1M, BIXC005K-BIXC1M
1	5	Not able to be fit to the Cole model With or without measured height and weight: BIDFIT, BIXS005K-BIXS1M, BIXC005K-BIXC1M
2	7	Incomplete examination With or without measured height and weight: BIDFIT
3, 4, 5, 6	7	Not examined BIDFIT

Please refer to the Analytic Guidelines for further details on the use of sample weights and other analytic issues. The Analytic Guidelines are available on the NHANES website.

References

Cole KS. Membranes, Ions, and Impulses. University of California Press, Berkley. 1997.
De Lorenzo A, Andreoli A, Matthie J, and Withers P. Predicting body cell mass with bioimpedance using theoretical methods: a technologic review. J Appl Physiol 1997;82:542-58.
Finn PJ, Plank LD, Clark MA, Connolly AB, Hill GL. Progressive cellular dehydration and proteolysis in critically ill patients. Lancet 1996;9:654-6.
Hanai T. Electrical properties of emulsions. In: Emulsion Science, 1st Ed., edited by Sherman PH. London, Academic Press, 1968, pp 354-477.
HYDRA ECF/ICF Bio-Impedance Spectrum Analyzer (Model 4200). Operating Manual, Revision 1.01. Xitron Technologies, Inc., San Diego, California. 1997.
Mazariegos M, Pithan C, Meyer A, Mendoza I, Solomons NW, Furst P. Bioelectrical impedance spectroscopy (BIS) in young children with acute and semi-acute hydrations disorders: potential and limitations. Appl Radiat Isot 1998;49:611-4.
Patel RV, Matthie JR, Withers PO, Peterson EL, Zarowitz BJ. Estimation of total body and extracellular water using single- and multiple-frequency bioimpedance. Ann Pharmacother 1994;28:565-9.
Plank LD, Monk DN, Woollard GA, Hill GL. Evaluation of multifrequency bioimpedance spectroscopy for measurement of the extracellular water space in critically ill patients. Appl Radiat Isot 1998;49:481-3.
Van Loan MD, Kopp LE, King JC, Wong WW, Mayclin PL. Fluid changes during pregnancy: use of bioimpedance spectroscopy. J App; Physiol 1995;78:1037-42.
Van Loan MD, Withers P, Matthie J, Mayclin PL. Use of bioimpedacne spectroscopy to determine extracellular fluid (ECF, intracellular fluid (ICF), total body water (TBW), and fat-free mass (FFM). In: Human Body Composition: In Vivo Methods, Models and Assessment, 1st Ed., edited by Ellis KJ, Eastman JD, New York, Plenum, 1993, pp 67 -70.
Van Loan MD. Estimates of fat-free mass (FFM) by densitometry, dual energy X-ray absorptiometry (DXA), and bioimpedance spectroscopy (BIS) in caucasian and Chinese-American women. Appl Radiat Isot 1998;49:751-2.

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:: SEQN
SAS Label:: Respondent sequence number
English Text:: Respondent sequence number
Target:: Both males and females 8 YEARS - 49 YEARS

BIAEXSTS - BIA Status

Variable Name:: BIAEXSTS
SAS Label:: BIA Status
English Text:: BIA Status
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative
1	Examination completed	4298	4298
2	Examination incomplete	72	4370
3	Not examined, pregnancy	276	4646
4	Not examined, weight > 300 lbs	57	4703
5	Not examined, jewelry or other objects not removed or metal in body	238	4941
6	Not examined, other reason	388	5329
.	Missing	0	5329

BIDFIT - Quality of fit to Cole model

Variable Name:: BIDFIT
SAS Label:: Quality of fit to Cole model
English Text:: Quality of fit to Cole model
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative
0	Excellent	3988	3988
1	Good	69	4057
2	Marginal	122	4179
3	Questionable	41	4220
4	Bad	9	4229
5	Could not be fit	69	4298
7	No BIA data	1031	5329
.	Missing	0	5329

BIDRECF - Resistance (ohms) of extracellular fluid

Variable Name:: BIDRECF
SAS Label:: Resistance (ohms) of extracellular fluid
English Text:: Resistance (ohms) of extracellular fluid (ECF) from Cole modeling
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
396.5 to 1736.1	Range of Values	4229	4229
.	Missing	1100	5329

BIDRICF - Resistance (ohms) of intracellular fluid

Variable Name:: BIDRICF
SAS Label:: Resistance (ohms) of intracellular fluid
English Text:: Resistance (ohms) of intracellular fluid (ICF) from Cole modeling
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
224.8 to 4153	Range of Values	4229	4229
.	Missing	1100	5329

BIDCM - Cell membrane capacitance (nF)

Variable Name:: BIDCM
SAS Label:: Cell membrane capacitance (nF)
English Text:: Capacitance (nF) of the cell membrane from Cole modeling
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.15 to 36.75	Range of Values	4229	4229
.	Missing	1100	5329

BIDTD - Time delay (ns)

Variable Name:: BIDTD
SAS Label:: Time delay (ns)
English Text:: Time delay (ns) from Cole modeling
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
-33.812 to 193.439	Range of Values	4229	4229
.	Missing	1100	5329

BIDALPHA - Exponent alpha

Variable Name:: BIDALPHA
SAS Label:: Exponent alpha
English Text:: Value of the exponent alpha from Cole modeling
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.302 to 1.1	Range of Values	4229	4229
.	Missing	1100	5329

BIDFC - Characteristic frequency (KHz)

Variable Name:: BIDFC
SAS Label:: Characteristic frequency (KHz)
English Text:: Characteristic frequency of the equivalent circuit (KHz)
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
2 to 896	Range of Values	4229	4229
.	Missing	1100	5329

BIDECF - Estimated extracellular fluid volume (L)

Variable Name:: BIDECF
SAS Label:: Estimated extracellular fluid volume (L)
English Text:: Estimated extracellular fluid volume (L)
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
5.36 to 29.63	Range of Values	4159	4159
.	Missing	1170	5329

BIDTBW - Estimated total water body volume (L)

Variable Name:: BIDTBW
SAS Label:: Estimated total water body volume (L)
English Text:: Estimated total water body volume (L)
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
10.74 to 77.31	Range of Values	4159	4159
.	Missing	1170	5329

BIDICF - Estimated intracellular fluid volume (L)

Variable Name:: BIDICF
SAS Label:: Estimated intracellular fluid volume (L)
English Text:: Estimated intracellular fluid volume (L)
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
5.33 to 50.02	Range of Values	4159	4159
.	Missing	1170	5329

BIDFFM - Estimated fat-free mass (kg)

Variable Name:: BIDFFM
SAS Label:: Estimated fat-free mass (kg)
English Text:: Estimated fat-free mass (kg)
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
14.1 to 105.6	Range of Values	4159	4159
.	Missing	1170	5329

BIDFAT - Estimated fat mass (kg)

Variable Name:: BIDFAT
SAS Label:: Estimated fat mass (kg)
English Text:: Estimated fat mass (kg)
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
1.3 to 78.3	Range of Values	4159	4159
.	Missing	1170	5329

BIDPFAT - Estimated percent body fat

Variable Name:: BIDPFAT
SAS Label:: Estimated percent body fat
English Text:: Estimated percent body fat
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
2.1 to 60.2	Range of Values	4159	4159
.	Missing	1170	5329

BIXS005K - Resistance (Ohms) @ 5 KHz

Variable Name:: BIXS005K
SAS Label:: Resistance (Ohms) @ 5 KHz
English Text:: Resistance (Ohms) @ 5 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
380.55 to 1093.73	Range of Values	4298	4298
.	Missing	1031	5329

BIXS006K - Resistance (Ohms) @ 6 KHz

Variable Name:: BIXS006K
SAS Label:: Resistance (Ohms) @ 6 KHz
English Text:: Resistance (Ohms) @ 6 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
378.25 to 1009.22	Range of Values	4298	4298
.	Missing	1031	5329

BIXS007K - Resistance (Ohms) @ 7 KHz

Variable Name:: BIXS007K
SAS Label:: Resistance (Ohms) @ 7 KHz
English Text:: Resistance (Ohms) @ 7 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
376.69 to 986.12	Range of Values	4298	4298
.	Missing	1031	5329

BIXS008K - Resistance (Ohms) @ 8 KHz

Variable Name:: BIXS008K
SAS Label:: Resistance (Ohms) @ 8 KHz
English Text:: Resistance (Ohms) @ 8 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
374.42 to 983.56	Range of Values	4298	4298
.	Missing	1031	5329

BIXS009K - Resistance (Ohms) @ 9 KHz

Variable Name:: BIXS009K
SAS Label:: Resistance (Ohms) @ 9 KHz
English Text:: Resistance (Ohms) @ 9 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
372.24 to 981.43	Range of Values	4298	4298
.	Missing	1031	5329

BIXS010K - Resistance (Ohms) @ 10 KHz

Variable Name:: BIXS010K
SAS Label:: Resistance (Ohms) @ 10 KHz
English Text:: Resistance (Ohms) @ 10 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
370.17 to 979.06	Range of Values	4298	4298
.	Missing	1031	5329

BIXS011K - Resistance (Ohms) @ 11 KHz

Variable Name:: BIXS011K
SAS Label:: Resistance (Ohms) @ 11 KHz
English Text:: Resistance (Ohms) @ 11 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
368.53 to 977.48	Range of Values	4298	4298
.	Missing	1031	5329

BIXS012K - Resistance (Ohms) @ 12 KHz

Variable Name:: BIXS012K
SAS Label:: Resistance (Ohms) @ 12 KHz
English Text:: Resistance (Ohms) @ 12 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
366.67 to 975.49	Range of Values	4298	4298
.	Missing	1031	5329

BIXS013K - Resistance (Ohms) @ 13 KHz

Variable Name:: BIXS013K
SAS Label:: Resistance (Ohms) @ 13 KHz
English Text:: Resistance (Ohms) @ 13 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
364.61 to 973.87	Range of Values	4298	4298
.	Missing	1031	5329

BIXS014K - Resistance (Ohms) @ 14 KHz

Variable Name:: BIXS014K
SAS Label:: Resistance (Ohms) @ 14 KHz
English Text:: Resistance (Ohms) @ 14 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
362.42 to 972.08	Range of Values	4298	4298
.	Missing	1031	5329

BIXS015K - Resistance (Ohms) @ 15 KHz

Variable Name:: BIXS015K
SAS Label:: Resistance (Ohms) @ 15 KHz
English Text:: Resistance (Ohms) @ 15 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
359.91 to 970.29	Range of Values	4298	4298
.	Missing	1031	5329

BIXS016K - Resistance (Ohms) @ 16 KHz

Variable Name:: BIXS016K
SAS Label:: Resistance (Ohms) @ 16 KHz
English Text:: Resistance (Ohms) @ 16 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
357.63 to 968.71	Range of Values	4298	4298
.	Missing	1031	5329

BIXS018K - Resistance (Ohms) @ 18 KHz

Variable Name:: BIXS018K
SAS Label:: Resistance (Ohms) @ 18 KHz
English Text:: Resistance (Ohms) @ 18 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
353.29 to 965.19	Range of Values	4298	4298
.	Missing	1031	5329

BIXS020K - Resistance (Ohms) @ 20 KHz

Variable Name:: BIXS020K
SAS Label:: Resistance (Ohms) @ 20 KHz
English Text:: Resistance (Ohms) @ 20 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
349.78 to 961.63	Range of Values	4298	4298
.	Missing	1031	5329

BIXS023K - Resistance (Ohms) @ 23 KHz

Variable Name:: BIXS023K
SAS Label:: Resistance (Ohms) @ 23 KHz
English Text:: Resistance (Ohms) @ 23 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
344.54 to 956.33	Range of Values	4298	4298
.	Missing	1031	5329

BIXS025K - Resistance (Ohms) @ 25 KHz

Variable Name:: BIXS025K
SAS Label:: Resistance (Ohms) @ 25 KHz
English Text:: Resistance (Ohms) @ 25 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
341.74 to 952.56	Range of Values	4298	4298
.	Missing	1031	5329

BIXS028K - Resistance (Ohms) @ 28 KHz

Variable Name:: BIXS028K
SAS Label:: Resistance (Ohms) @ 28 KHz
English Text:: Resistance (Ohms) @ 28 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
337.61 to 947.63	Range of Values	4298	4298
.	Missing	1031	5329

BIXS031K - Resistance (Ohms) @ 31 KHz

Variable Name:: BIXS031K
SAS Label:: Resistance (Ohms) @ 31 KHz
English Text:: Resistance (Ohms) @ 31 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
333.69 to 942.98	Range of Values	4298	4298
.	Missing	1031	5329

BIXS035K - Resistance (Ohms) @ 35 KHz

Variable Name:: BIXS035K
SAS Label:: Resistance (Ohms) @ 35 KHz
English Text:: Resistance (Ohms) @ 35 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
329.05 to 937.44	Range of Values	4298	4298
.	Missing	1031	5329

BIXS039K - Resistance (Ohms) @ 39 KHz

Variable Name:: BIXS039K
SAS Label:: Resistance (Ohms) @ 39 KHz
English Text:: Resistance (Ohms) @ 39 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
325.01 to 931.91	Range of Values	4298	4298
.	Missing	1031	5329

BIXS043K - Resistance (Ohms) @ 43 KHz

Variable Name:: BIXS043K
SAS Label:: Resistance (Ohms) @ 43 KHz
English Text:: Resistance (Ohms) @ 43 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
321.51 to 926.97	Range of Values	4298	4298
.	Missing	1031	5329

BIXS050K - Resistance (Ohms) @ 50 KHz

Variable Name:: BIXS050K
SAS Label:: Resistance (Ohms) @ 50 KHz
English Text:: Resistance (Ohms) @ 50 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
316.05 to 918.76	Range of Values	4298	4298
.	Missing	1031	5329

BIXS054K - Resistance (Ohms) @ 54 KHz

Variable Name:: BIXS054K
SAS Label:: Resistance (Ohms) @ 54 KHz
English Text:: Resistance (Ohms) @ 54 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
313.35 to 914.83	Range of Values	4298	4298
.	Missing	1031	5329

BIXS060K - Resistance (Ohms) @ 60 KHz

Variable Name:: BIXS060K
SAS Label:: Resistance (Ohms) @ 60 KHz
English Text:: Resistance (Ohms) @ 60 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
309.74 to 909.74	Range of Values	4298	4298
.	Missing	1031	5329

BIXS067K - Resistance (Ohms) @ 67 KHz

Variable Name:: BIXS067K
SAS Label:: Resistance (Ohms) @ 67 KHz
English Text:: Resistance (Ohms) @ 67 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
305.97 to 904.97	Range of Values	4298	4298
.	Missing	1031	5329

BIXS075K - Resistance (Ohms) @ 75 KHz

Variable Name:: BIXS075K
SAS Label:: Resistance (Ohms) @ 75 KHz
English Text:: Resistance (Ohms) @ 75 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
302.28 to 899.91	Range of Values	4298	4298
.	Missing	1031	5329

BIXS083K - Resistance (Ohms) @ 83 KHz

Variable Name:: BIXS083K
SAS Label:: Resistance (Ohms) @ 83 KHz
English Text:: Resistance (Ohms) @ 83 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
299.1 to 895.47	Range of Values	4298	4298
.	Missing	1031	5329

BIXS093K - Resistance (Ohms) @ 93 KHz

Variable Name:: BIXS093K
SAS Label:: Resistance (Ohms) @ 93 KHz
English Text:: Resistance (Ohms) @ 93 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
295.79 to 890.88	Range of Values	4298	4298
.	Missing	1031	5329

BIXS100K - Resistance (Ohms) @ 100 KHz

Variable Name:: BIXS100K
SAS Label:: Resistance (Ohms) @ 100 KHz
English Text:: Resistance (Ohms) @ 100 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
293.94 to 887.88	Range of Values	4298	4298
.	Missing	1031	5329

BIXS115K - Resistance (Ohms) @ 115 KHz

Variable Name:: BIXS115K
SAS Label:: Resistance (Ohms) @ 115 KHz
English Text:: Resistance (Ohms) @ 115 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
236.81 to 881.41	Range of Values	4298	4298
.	Missing	1031	5329

BIXS128K - Resistance (Ohms) @ 128 KHz

Variable Name:: BIXS128K
SAS Label:: Resistance (Ohms) @ 128 KHz
English Text:: Resistance (Ohms) @ 128 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
157.12 to 876.63	Range of Values	4298	4298
.	Missing	1031	5329

BIXS143K - Resistance (Ohms) @ 143 KHz

Variable Name:: BIXS143K
SAS Label:: Resistance (Ohms) @ 143 KHz
English Text:: Resistance (Ohms) @ 143 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
201.99 to 872.49	Range of Values	4298	4298
.	Missing	1031	5329

BIXS159K - Resistance (Ohms) @ 159 KHz

Variable Name:: BIXS159K
SAS Label:: Resistance (Ohms) @ 159 KHz
English Text:: Resistance (Ohms) @ 159 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
153.22 to 868.49	Range of Values	4298	4298
.	Missing	1031	5329

BIXS177K - Resistance (Ohms) @ 177 KHz

Variable Name:: BIXS177K
SAS Label:: Resistance (Ohms) @ 177 KHz
English Text:: Resistance (Ohms) @ 177 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
90.28 to 864.39	Range of Values	4298	4298
.	Missing	1031	5329

BIXS200K - Resistance (Ohms) @ 200 KHz

Variable Name:: BIXS200K
SAS Label:: Resistance (Ohms) @ 200 KHz
English Text:: Resistance (Ohms) @ 200 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
65.95 to 860.2	Range of Values	4298	4298
.	Missing	1031	5329

BIXS220K - Resistance (Ohms) @ 220 KHz

Variable Name:: BIXS220K
SAS Label:: Resistance (Ohms) @ 220 KHz
English Text:: Resistance (Ohms) @ 220 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
92.32 to 856.56	Range of Values	4298	4298
.	Missing	1031	5329

BIXS245K - Resistance (Ohms) @ 245 KHz

Variable Name:: BIXS245K
SAS Label:: Resistance (Ohms) @ 245 KHz
English Text:: Resistance (Ohms) @ 245 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
95.34 to 852.64	Range of Values	4298	4298
.	Missing	1031	5329

BIXS273K - Resistance (Ohms) @ 273 KHz

Variable Name:: BIXS273K
SAS Label:: Resistance (Ohms) @ 273 KHz
English Text:: Resistance (Ohms) @ 273 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
169.35 to 848.18	Range of Values	4298	4298
.	Missing	1031	5329

BIXS304K - Resistance (Ohms) @ 304 KHz

Variable Name:: BIXS304K
SAS Label:: Resistance (Ohms) @ 304 KHz
English Text:: Resistance (Ohms) @ 304 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
186.28 to 843.93	Range of Values	4298	4298
.	Missing	1031	5329

BIXS339K - Resistance (Ohms) @ 339 KHz

Variable Name:: BIXS339K
SAS Label:: Resistance (Ohms) @ 339 KHz
English Text:: Resistance (Ohms) @ 339 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
100.7 to 840.2	Range of Values	4298	4298
.	Missing	1031	5329

BIXS378K - Resistance (Ohms) @ 378 KHz

Variable Name:: BIXS378K
SAS Label:: Resistance (Ohms) @ 378 KHz
English Text:: Resistance (Ohms) @ 378 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
44.14 to 836.89	Range of Values	4298	4298
.	Missing	1031	5329

BIXS421K - Resistance (Ohms) @ 421 KHz

Variable Name:: BIXS421K
SAS Label:: Resistance (Ohms) @ 421 KHz
English Text:: Resistance (Ohms) @ 421 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
53.36 to 833.53	Range of Values	4298	4298
.	Missing	1031	5329

BIXS469K - Resistance (Ohms) @ 469 KHz

Variable Name:: BIXS469K
SAS Label:: Resistance (Ohms) @ 469 KHz
English Text:: Resistance (Ohms) @ 469 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
99.06 to 830.01	Range of Values	4298	4298
.	Missing	1031	5329

BIXS500K - Resistance (Ohms) @ 500 KHz

Variable Name:: BIXS500K
SAS Label:: Resistance (Ohms) @ 500 KHz
English Text:: Resistance (Ohms) @ 500 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
161.18 to 828.05	Range of Values	4298	4298
.	Missing	1031	5329

BIXS582K - Resistance (Ohms) @ 582 KHz

Variable Name:: BIXS582K
SAS Label:: Resistance (Ohms) @ 582 KHz
English Text:: Resistance (Ohms) @ 582 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
171.43 to 824.26	Range of Values	4298	4298
.	Missing	1031	5329

BIXS649K - Resistance (Ohms) @ 649 KHz

Variable Name:: BIXS649K
SAS Label:: Resistance (Ohms) @ 649 KHz
English Text:: Resistance (Ohms) @ 649 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
44.34 to 821.27	Range of Values	4298	4298
.	Missing	1031	5329

BIXS723K - Resistance (Ohms) @ 723 KHz

Variable Name:: BIXS723K
SAS Label:: Resistance (Ohms) @ 723 KHz
English Text:: Resistance (Ohms) @ 723 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
61.13 to 818.21	Range of Values	4298	4298
.	Missing	1031	5329

BIXS806K - Resistance (Ohms) @ 806 KHz

Variable Name:: BIXS806K
SAS Label:: Resistance (Ohms) @ 806 KHz
English Text:: Resistance (Ohms) @ 806 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
79.18 to 814.93	Range of Values	4298	4298
.	Missing	1031	5329

BIXS898K - Resistance (Ohms) @ 898 KHz

Variable Name:: BIXS898K
SAS Label:: Resistance (Ohms) @ 898 KHz
English Text:: Resistance (Ohms) @ 898 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
96.29 to 811.86	Range of Values	4298	4298
.	Missing	1031	5329

BIXS1M - Resistance (Ohms) @ 1 MHz

Variable Name:: BIXS1M
SAS Label:: Resistance (Ohms) @ 1 MHz
English Text:: Resistance (Ohms) @ 1 MHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
89.34 to 807.92	Range of Values	4298	4298
.	Missing	1031	5329

BIXC005K - Reactance (Ohms) @ 5 KHz

Variable Name:: BIXC005K
SAS Label:: Reactance (Ohms) @ 5 KHz
English Text:: Reactance (Ohms) @ 5 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
13.17 to 971.4	Range of Values	4298	4298
.	Missing	1031	5329

BIXC006K - Reactance (Ohms) @ 6 KHz

Variable Name:: BIXC006K
SAS Label:: Reactance (Ohms) @ 6 KHz
English Text:: Reactance (Ohms) @ 6 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
12.79 to 883.07	Range of Values	4298	4298
.	Missing	1031	5329

BIXC007K - Reactance (Ohms) @ 7 KHz

Variable Name:: BIXC007K
SAS Label:: Reactance (Ohms) @ 7 KHz
English Text:: Reactance (Ohms) @ 7 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
14.9 to 783.31	Range of Values	4298	4298
.	Missing	1031	5329

BIXC008K - Reactance (Ohms) @ 8 KHz

Variable Name:: BIXC008K
SAS Label:: Reactance (Ohms) @ 8 KHz
English Text:: Reactance (Ohms) @ 8 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
15.62 to 744.16	Range of Values	4298	4298
.	Missing	1031	5329

BIXC009K - Reactance (Ohms) @ 9 KHz

Variable Name:: BIXC009K
SAS Label:: Reactance (Ohms) @ 9 KHz
English Text:: Reactance (Ohms) @ 9 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
16.31 to 689.1	Range of Values	4298	4298
.	Missing	1031	5329

BIXC010K - Reactance (Ohms) @ 10 KHz

Variable Name:: BIXC010K
SAS Label:: Reactance (Ohms) @ 10 KHz
English Text:: Reactance (Ohms) @ 10 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
17.22 to 643.54	Range of Values	4298	4298
.	Missing	1031	5329

BIXC011K - Reactance (Ohms) @ 11 KHz

Variable Name:: BIXC011K
SAS Label:: Reactance (Ohms) @ 11 KHz
English Text:: Reactance (Ohms) @ 11 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
18.04 to 617.05	Range of Values	4298	4298
.	Missing	1031	5329

BIXC012K - Reactance (Ohms) @ 12 KHz

Variable Name:: BIXC012K
SAS Label:: Reactance (Ohms) @ 12 KHz
English Text:: Reactance (Ohms) @ 12 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
18.74 to 587.57	Range of Values	4298	4298
.	Missing	1031	5329

BIXC013K - Reactance (Ohms) @ 13 KHz

Variable Name:: BIXC013K
SAS Label:: Reactance (Ohms) @ 13 KHz
English Text:: Reactance (Ohms) @ 13 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
19.24 to 559.4	Range of Values	4298	4298
.	Missing	1031	5329

BIXC014K - Reactance (Ohms) @ 14 KHz

Variable Name:: BIXC014K
SAS Label:: Reactance (Ohms) @ 14 KHz
English Text:: Reactance (Ohms) @ 14 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
20.16 to 542.74	Range of Values	4298	4298
.	Missing	1031	5329

BIXC015K - Reactance (Ohms) @ 15 KHz

Variable Name:: BIXC015K
SAS Label:: Reactance (Ohms) @ 15 KHz
English Text:: Reactance (Ohms) @ 15 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
20.75 to 528.1	Range of Values	4298	4298
.	Missing	1031	5329

BIXC016K - Reactance (Ohms) @ 16 KHz

Variable Name:: BIXC016K
SAS Label:: Reactance (Ohms) @ 16 KHz
English Text:: Reactance (Ohms) @ 16 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
21.34 to 513.25	Range of Values	4298	4298
.	Missing	1031	5329

BIXC018K - Reactance (Ohms) @ 18 KHz

Variable Name:: BIXC018K
SAS Label:: Reactance (Ohms) @ 18 KHz
English Text:: Reactance (Ohms) @ 18 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
22.41 to 486.34	Range of Values	4298	4298
.	Missing	1031	5329

BIXC020K - Reactance (Ohms) @ 20 KHz

Variable Name:: BIXC020K
SAS Label:: Reactance (Ohms) @ 20 KHz
English Text:: Reactance (Ohms) @ 20 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
23.59 to 460.36	Range of Values	4298	4298
.	Missing	1031	5329

BIXC023K - Reactance (Ohms) @ 23 KHz

Variable Name:: BIXC023K
SAS Label:: Reactance (Ohms) @ 23 KHz
English Text:: Reactance (Ohms) @ 23 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
24.94 to 429.45	Range of Values	4298	4298
.	Missing	1031	5329

BIXC025K - Reactance (Ohms) @ 25 KHz

Variable Name:: BIXC025K
SAS Label:: Reactance (Ohms) @ 25 KHz
English Text:: Reactance (Ohms) @ 25 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
25.71 to 411.47	Range of Values	4298	4298
.	Missing	1031	5329

BIXC028K - Reactance (Ohms) @ 28 KHz

Variable Name:: BIXC028K
SAS Label:: Reactance (Ohms) @ 28 KHz
English Text:: Reactance (Ohms) @ 28 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
26.75 to 390.29	Range of Values	4298	4298
.	Missing	1031	5329

BIXC031K - Reactance (Ohms) @ 31 KHz

Variable Name:: BIXC031K
SAS Label:: Reactance (Ohms) @ 31 KHz
English Text:: Reactance (Ohms) @ 31 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
27.88 to 375.99	Range of Values	4298	4298
.	Missing	1031	5329

BIXC035K - Reactance (Ohms) @ 35 KHz

Variable Name:: BIXC035K
SAS Label:: Reactance (Ohms) @ 35 KHz
English Text:: Reactance (Ohms) @ 35 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
29.1 to 238.85	Range of Values	4298	4298
.	Missing	1031	5329

BIXC039K - Reactance (Ohms) @ 39 KHz

Variable Name:: BIXC039K
SAS Label:: Reactance (Ohms) @ 39 KHz
English Text:: Reactance (Ohms) @ 39 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
30.07 to 221.45	Range of Values	4298	4298
.	Missing	1031	5329

BIXC043K - Reactance (Ohms) @ 43 KHz

Variable Name:: BIXC043K
SAS Label:: Reactance (Ohms) @ 43 KHz
English Text:: Reactance (Ohms) @ 43 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
30.76 to 206.63	Range of Values	4298	4298
.	Missing	1031	5329

BIXC050K - Reactance (Ohms) @ 50 KHz

Variable Name:: BIXC050K
SAS Label:: Reactance (Ohms) @ 50 KHz
English Text:: Reactance (Ohms) @ 50 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
31.98 to 194.79	Range of Values	4298	4298
.	Missing	1031	5329

BIXC054K - Reactance (Ohms) @ 54 KHz

Variable Name:: BIXC054K
SAS Label:: Reactance (Ohms) @ 54 KHz
English Text:: Reactance (Ohms) @ 54 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
32.28 to 193.56	Range of Values	4298	4298
.	Missing	1031	5329

BIXC060K - Reactance (Ohms) @ 60 KHz

Variable Name:: BIXC060K
SAS Label:: Reactance (Ohms) @ 60 KHz
English Text:: Reactance (Ohms) @ 60 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
32.93 to 193.29	Range of Values	4298	4298
.	Missing	1031	5329

BIXC067K - Reactance (Ohms) @ 67 KHz

Variable Name:: BIXC067K
SAS Label:: Reactance (Ohms) @ 67 KHz
English Text:: Reactance (Ohms) @ 67 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
33.47 to 162.14	Range of Values	4298	4298
.	Missing	1031	5329

BIXC075K - Reactance (Ohms) @ 75 KHz

Variable Name:: BIXC075K
SAS Label:: Reactance (Ohms) @ 75 KHz
English Text:: Reactance (Ohms) @ 75 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
34 to 154.64	Range of Values	4298	4298
.	Missing	1031	5329

BIXC083K - Reactance (Ohms) @ 83 KHz

Variable Name:: BIXC083K
SAS Label:: Reactance (Ohms) @ 83 KHz
English Text:: Reactance (Ohms) @ 83 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
34.23 to 148.62	Range of Values	4298	4298
.	Missing	1031	5329

BIXC093K - Reactance (Ohms) @ 93 KHz

Variable Name:: BIXC093K
SAS Label:: Reactance (Ohms) @ 93 KHz
English Text:: Reactance (Ohms) @ 93 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
34.01 to 140.14	Range of Values	4298	4298
.	Missing	1031	5329

BIXC100K - Reactance (Ohms) @ 100 KHz

Variable Name:: BIXC100K
SAS Label:: Reactance (Ohms) @ 100 KHz
English Text:: Reactance (Ohms) @ 100 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
33.35 to 135.78	Range of Values	4298	4298
.	Missing	1031	5329

BIXC115K - Reactance (Ohms) @ 115 KHz

Variable Name:: BIXC115K
SAS Label:: Reactance (Ohms) @ 115 KHz
English Text:: Reactance (Ohms) @ 115 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
32.28 to 124.37	Range of Values	4298	4298
.	Missing	1031	5329

BIXC128K - Reactance (Ohms) @ 128 KHz

Variable Name:: BIXC128K
SAS Label:: Reactance (Ohms) @ 128 KHz
English Text:: Reactance (Ohms) @ 128 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
30.37 to 117.88	Range of Values	4298	4298
.	Missing	1031	5329

BIXC143K - Reactance (Ohms) @ 143 KHz

Variable Name:: BIXC143K
SAS Label:: Reactance (Ohms) @ 143 KHz
English Text:: Reactance (Ohms) @ 143 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
30.47 to 111.75	Range of Values	4298	4298
.	Missing	1031	5329

BIXC159K - Reactance (Ohms) @ 159 KHz

Variable Name:: BIXC159K
SAS Label:: Reactance (Ohms) @ 159 KHz
English Text:: Reactance (Ohms) @ 159 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
26.8 to 105.64	Range of Values	4298	4298
.	Missing	1031	5329

BIXC177K - Reactance (Ohms) @ 177 KHz

Variable Name:: BIXC177K
SAS Label:: Reactance (Ohms) @ 177 KHz
English Text:: Reactance (Ohms) @ 177 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
14.04 to 99.6	Range of Values	4298	4298
.	Missing	1031	5329

BIXC200K - Reactance (Ohms) @ 200 KHz

Variable Name:: BIXC200K
SAS Label:: Reactance (Ohms) @ 200 KHz
English Text:: Reactance (Ohms) @ 200 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
10.1 to 97.93	Range of Values	4298	4298
.	Missing	1031	5329

BIXC220K - Reactance (Ohms) @ 220 KHz

Variable Name:: BIXC220K
SAS Label:: Reactance (Ohms) @ 220 KHz
English Text:: Reactance (Ohms) @ 220 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
15.9 to 96.67	Range of Values	4298	4298
.	Missing	1031	5329

BIXC245K - Reactance (Ohms) @ 245 KHz

Variable Name:: BIXC245K
SAS Label:: Reactance (Ohms) @ 245 KHz
English Text:: Reactance (Ohms) @ 245 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
16.45 to 129.1	Range of Values	4298	4298
.	Missing	1031	5329

BIXC273K - Reactance (Ohms) @ 273 KHz

Variable Name:: BIXC273K
SAS Label:: Reactance (Ohms) @ 273 KHz
English Text:: Reactance (Ohms) @ 273 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
23.17 to 106.03	Range of Values	4298	4298
.	Missing	1031	5329

BIXC304K - Reactance (Ohms) @ 304 KHz

Variable Name:: BIXC304K
SAS Label:: Reactance (Ohms) @ 304 KHz
English Text:: Reactance (Ohms) @ 304 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
23.23 to 123.1	Range of Values	4298	4298
.	Missing	1031	5329

BIXC339K - Reactance (Ohms) @ 339 KHz

Variable Name:: BIXC339K
SAS Label:: Reactance (Ohms) @ 339 KHz
English Text:: Reactance (Ohms) @ 339 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
14.31 to 105.41	Range of Values	4298	4298
.	Missing	1031	5329

BIXC378K - Reactance (Ohms) @ 378 KHz

Variable Name:: BIXC378K
SAS Label:: Reactance (Ohms) @ 378 KHz
English Text:: Reactance (Ohms) @ 378 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
8.94 to 109.64	Range of Values	4298	4298
.	Missing	1031	5329

BIXC421K - Reactance (Ohms) @ 421 KHz

Variable Name:: BIXC421K
SAS Label:: Reactance (Ohms) @ 421 KHz
English Text:: Reactance (Ohms) @ 421 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
11.27 to 112.96	Range of Values	4298	4298
.	Missing	1031	5329

BIXC469K - Reactance (Ohms) @ 469 KHz

Variable Name:: BIXC469K
SAS Label:: Reactance (Ohms) @ 469 KHz
English Text:: Reactance (Ohms) @ 469 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
10.47 to 118.4	Range of Values	4298	4298
.	Missing	1031	5329

BIXC500K - Reactance (Ohms) @ 500 KHz

Variable Name:: BIXC500K
SAS Label:: Reactance (Ohms) @ 500 KHz
English Text:: Reactance (Ohms) @ 500 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
13.06 to 139.31	Range of Values	4298	4298
.	Missing	1031	5329

BIXC582K - Reactance (Ohms) @ 582 KHz

Variable Name:: BIXC582K
SAS Label:: Reactance (Ohms) @ 582 KHz
English Text:: Reactance (Ohms) @ 582 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
14.76 to 651.41	Range of Values	4298	4298
.	Missing	1031	5329

BIXC649K - Reactance (Ohms) @ 649 KHz

Variable Name:: BIXC649K
SAS Label:: Reactance (Ohms) @ 649 KHz
English Text:: Reactance (Ohms) @ 649 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
12.23 to 2514.87	Range of Values	4298	4298
.	Missing	1031	5329

BIXC723K - Reactance (Ohms) @ 723 KHz

Variable Name:: BIXC723K
SAS Label:: Reactance (Ohms) @ 723 KHz
English Text:: Reactance (Ohms) @ 723 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
9.99 to 2309.8	Range of Values	4298	4298
.	Missing	1031	5329

BIXC806K - Reactance (Ohms) @ 806 KHz

Variable Name:: BIXC806K
SAS Label:: Reactance (Ohms) @ 806 KHz
English Text:: Reactance (Ohms) @ 806 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
10.89 to 2027.61	Range of Values	4298	4298
.	Missing	1031	5329

BIXC898K - Reactance (Ohms) @ 898 KHz

Variable Name:: BIXC898K
SAS Label:: Reactance (Ohms) @ 898 KHz
English Text:: Reactance (Ohms) @ 898 KHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
8.65 to 2109.57	Range of Values	4298	4298
.	Missing	1031	5329

BIXC1M - Reactance (Ohms) @ 1 MHz

Variable Name:: BIXC1M
SAS Label:: Reactance (Ohms) @ 1 MHz
English Text:: Reactance (Ohms) @ 1 MHz
Target:: Both males and females 8 YEARS - 49 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
1.9 to 2427.35	Range of Values	4298	4298
.	Missing	1031	5329

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