National Health and Nutrition Examination Survey

2007-2008 Data Documentation, Codebook, and Frequencies

Volatile Organic Compounds - Blood & Related Questionnaire Items (VOCWB_E)

Data File: VOCWB_E.xpt

First Published: May 2016

Last Revised: NA

Component Description

Both the lab data and questionnaire items will be released in this file.

Volatile Organic Compound Questions

The volatile organic compound section of the Mobile Examination Center (MEC) Interview and Phlebotomy Component (PH) provide personal interview data.

Volatile Organic Compounds (Whole Blood)

Volatile organic compounds (VOCs) are a large group of chemicals that have been used as solvents, degreasers, and cleaning agents in industry and consumer products. Many of the VOCs were found to contaminate ground water and drinking water sources, and because of human health concerns, have been banned or restricted from most uses.

The halogenated solvents are VOCs consisting of a hydrocarbon chain or one hydrocarbon substituted with one or more chlorine or bromine atoms. Most of these chemicals are used as degreasers and solvents in various products such as paint. In the past, 1,1,1-trichloroethane was used as a dry cleaning agent, insect fumigant, and solvent in consumer products. Methylene chloride, perchloroethylene, and trichloroethene are other VOCs that were widely used in the past.

Benzene, toluene, ethylbenzene, xylene, and styrene, collectively referred to as BTEXS, are components of tobacco smoke and along with 2,5-dimethyl furan, these VOCs are usually detected in the blood of cigarette smokers at higher levels than in non-smokers. Chlorobenzene (monochlorobenzene) and the three dichlorobenzenes are halogenated aromatic hydrocarbons primarily used in industrial and chemical synthetic processes. Chlorobenzene has been used to produce DDT, phenol, and nitrobenzene. The dichlorobenzenes are also chemical intermediates in synthesis of dyes, pesticides, and other industrial products. 1,4-Dichlorobenzene (para-dichlorobenzene) is used also as a moth repellent and as a deodorizer. Disinfection by-products (DBP), including: bromodichloromethane, dibromochloromethane, bromoform, and chloroform are formed when chlorine interacts with natural organic materials found in water. Primary sources of DBPs are chlorinated drinking water and recreational water bodies, such as swimming pools.

Inhalation is the most common VOC route of exposure in the general population, including: indoor sources, such as paints, adhesives, cleaning solutions, and aerosolized insecticide sprays; industries producing these solvents; and contaminated waste disposal sites. Drinking water may contribute to exposure when underground drinking water supplies are contaminated. After they are absorbed in the body, VOCs are rapidly eliminated in exhaled breath, or may be rapidly metabolized and eliminated in the urine.

Eligible Sample

Examined participants aged 12 years and older from a one-half sample were eligible.

Description of Laboratory Methodology

Interview Setting and Mode of Administration

The questions were asked during the physical examination, in the mobile examination center (MEC). The questions were administered by the phlebotomist or the MEC interviewers.

Laboratory Methodology

An automated analytical method was developed using capillary gas chromatography (GC) and mass spectrometry (MS) with selected-ion monitoring (SIM) detection and isotope-dilution. This method quantifies levels of individual VOCs in whole blood to low-parts-per-trillion range. Because non-occupationally exposed individuals have blood VOC concentrations within this range, this method is applicable for determining these quantities and investigating cases of sustained or recent low-level exposure.

Refer to the Laboratory Method Files section for detailed laboratory procedure manual(s) of the methods used.

There were no changes to the lab method, lab equipment, or lab site for this component in the NHANES 2007-2008 cycle.

Laboratory Method Files

Volatile Organic Compounds (Updated January 2017)

Laboratory Quality Assurance and Monitoring

Whole blood specimens were processed, stored, and shipped to Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA for analysis.

Detailed instructions on specimen collection and processing are discussed in the NHANES Laboratory Procedures Manual (LPM). Vials are stored under appropriate refrigerated (2-8°C) conditions until they are shipped to National Center for Environmental Health, for testing.

The NHANES quality assurance and quality control (QA/QC) protocols meet the 1988 Clinical Laboratory Improvement Amendments mandates. Detailed QA/QC instructions are discussed in the NHANES LPM.

Mobile Examination Centers (MECs)

Laboratory team performance is monitored using several techniques. NCHS and contract consultants use a structured quality assurance evaluation during unscheduled visits to evaluate both the quality of the laboratory work and the quality-control procedures. Each laboratory staff member is observed for equipment operation, specimen collection and preparation; testing procedures and constructive feedback are given to each staff member. Formal retraining sessions are conducted annually to ensure that required skill levels were maintained.

Analytical Laboratories

NHANES uses several methods to monitor the quality of the analyses performed by the contract laboratories. In the MEC, these methods include performing blind split samples collected on “dry run” sessions. In addition, contract laboratories randomly perform repeat testing on 2% of all specimens.

NCHS developed and distributed a quality control protocol for all the contract laboratories which outlined the use of Westgard rules (Westgard et al., 1981) when running NHANES specimens. Progress reports containing any problems encountered during shipping or receipt of specimens, summary statistics for each control pool, QC graphs, instrument calibration, reagents, and any special considerations are submitted to NCHS quarterly. The reports are reviewed for trends or shifts in the data. The laboratories are required to explain any identified areas of concern.

All QC procedures recommended by the manufacturers were followed. Reported results for all assays meet the CDC/NCEH Tobacco and Volatile Branch quality control and quality assurance performance criteria for accuracy and precision, similar to the Westgard rules (Caudill et al., 2008).

Data Processing and Editing

The data were reviewed. Incomplete data or improbable values were sent to the performing laboratory for confirmation.

Analytic Notes

Refer to the 2007-2008 Laboratory Data Overview for general information on NHANES laboratory data.

Subsample Weights

Whole blood VOCs were measured in a one-half subsample of persons 12 years and older. Special sample weights are required to analyze these data properly. Specific sample weights for this subsample are included in this data file and should be used when analyzing these data.

Some records have a 0 weight because additional VOC results were obtained after the construction of the sample weights for this component. For assistance in modifying the weights for analysis, please contact DHANES.

Demographic and Other Related Variables

The analysis of NHANES laboratory data must be conducted using the appropriate survey design and demographic variables. The NHANES 2007-2008 Demographics File contains demographic data, health indicators, and other related information collected during household interviews as well as the sample design variables. The recommended procedure for variance estimation requires use of stratum and PSU variables (SDMVSTRA and SDMVPSU, respectively) in the demographic data file.

The Fasting Questionnaire file includes auxiliary information such as fasting status, the time of venipuncture, and the conditions precluding venipuncture.

This laboratory data file can be linked to the other NHANES data files using the unique survey participant identifier (i.e., SEQN).

Detection limits

The detection limits were constant in the data set. Two variables are provided for each of these analytes. The variable name ending in “LC” (ex., LBD2DFLC) indicates whether the result was below the limit of detection: “0” means that the result was at or above the limit of detection, “1” indicates that the result was below the limit of detection. For analytes with analytic results below the lower limit of detection (ex., LBD2DFLC=1), an imputed fill value was placed in the analyte results field. This value is the lower limit of detection divided by square root of 2 (LLOD/sqrt [2]). The other variable prefixed URX (ex., LBX2DF) provides the analytic result for that analyte.

**Lower Limit of Detection (LLOD, in ng/mL) for Whole Blood VOCs**
VARIABLE NAME	SAS LABEL	LLOD
LBX2DF	Blood 2,5-dimethylfuran (ng/mL)	0.0110
LBXV1A	Blood 1,1-dichloroethane (ng/mL)	0.0100
LBXV1D	Blood 1,2-dichlorobenzene (ng/mL)	0.0250
LBXV1E	Blood 1,1-dichloroethylene (ng/mL)	0.0090
LBXV2A	Blood 1,2-dichloroethane (ng/mL)	0.0100
LBXV2C	Blood cis-1,2-dichloroethylene (ng/mL)	0.0100
LBXV2E	Blood 1,1,2-trichloroethane (ng/mL)	0.0100
LBXV2P	Bld 1,2-dibromo-3-chloropropane (ng/mL)	0.1000
LBXV2T	Blood trans-1,2-dichloroethylene (ng/mL)	0.0100
LBXV3B	Blood 1,3-dichlorobenzene (ng/mL)	0.0250
LBXV4C	Blood tetrachloroethene (ng/mL)	0.0480
LBXV4E	Blood 1,1,2,2-tetrachloroethane (ng/mL)	0.0100
LBXVBZ	Blood benzene (ng/mL)	0.0240
LBXVCB	Blood chlorobenzene (ng/mL)	0.0110
LBX4CE	Blood 1,1,1,2-tetrachloroethane (ng/mL)	0.0400
LBXVCT	Blood carbon tetrachloride (ng/mL)	0.0050
LBXVDB	Blood 1,4-dichlorobenzene (ng/mL)	0.0400
LBXVDE	Blood 1,2-dibromoethane (ng/ml)	0.0150
LBXVDM	Blood dibromomethane (ng/mL)	0.0300
LBXVDP	Blood 1,2-dichloropropane (ng/mL)	0.0100
LBXVEB	Blood ethylbenzene (ng/mL)	0.0240
LBXVFN	Blood furan (ng/ml)	0.0250
LBXVHE	Blood hexachloroethane (ng/mL)	0.0110
LBXVIPB	Blood isopropylbenzene (ng/ml)	0.0400
LBXVMC	Blood methylene chloride(ng/mL)	0.2500
LBXVNB	Blood nitrobenzene (ng/mL)	0.3200
LBXVOX	Blood o-xylene (ng/mL)	0.0240
LBXVST	Blood styrene (ng/mL)	0.0300
LBXVTC	Blood trichloroethene (ng/mL)	0.0120
LBXVTE	Blood 1,1,1-trichloroethane (ng/mL)	0.0100
LBXVTO	Blood toluene (ng/mL)	0.0250
LBXVTP	Blood 1,2,3-trichloropropane (ng/ml)	0.0400
LBXVXY	Blood m-/p-Xylene (ng/mL)	0.0340

References

Blount BC, Kobelski RJ, McElprang DO, Ashley DL, Morrow JC, Chambers DM, Cardinali FL (2006) Quantification of 31 Volatile Organic Compounds in Whole Blood Using Solid-Phase Microextraction and Gas Chromatography/Mass Spectrometry. J. Chromatography B. 832(2):292-301.
Bonin MA, Silva LK, Smith MM, Ashley DL, Blount BC (2005) Measurement of trihalomethanes and methyl tert-butyl ether in whole blood using gas chromatography with high-resolution mass spectrometry. J Anal Toxicol. 29(2):81-89.
Cardinali FL, Ashley DL, Morrow JC, Moll DM, Blount BC (2004), Measurement of Trihalomethanes and Methyl Tertiary-Butyl Ether in Tap Water Using Solid-Phase Microextraction GC/MS, Journal of Chromatographic Sciences, 42:200-206.
Caudill, S.P., Schleicher, R.L., Pirkle, J.L. Multi-rule quality control for the age-related eye disease study. Statist. Med. (2008) 27(20):4094-40106.
Morandi MT, Stock TH. Personal Exposures to Toxic Air Pollutants, Vol. 2. Houston, TX; The University of Texas – Houston, Health Science Center, School of Public Health: 1998.
U.S. Occupational Safety and Health Administration (OSHA). Organic Vapors, Method 07 in Analytical Methods Manual. Salt Lake City, Utah; OSHA Analytical Laboratory: 1985.
Westgard J.O., Barry P.L., Hunt M.R., Groth T. A multi-rule Shewhart chart for quality control in clinical chemistry. Clin Chem (1981) 27:493-501.

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 12 YEARS - 150 YEARS

WTSVOC2Y - VOC Subsample Weight

Variable Name:: WTSVOC2Y
SAS Label:: VOC Subsample Weight
English Text:: VOC Subsample Weight
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
7544.8236215 to 319733.44187	Range of Values	3374	3374
.	Missing	41	3415

LBXV1A - Blood 1,1-Dichloroethane (ng/mL)

Variable Name:: LBXV1A
SAS Label:: Blood 1,1-Dichloroethane (ng/mL)
English Text:: Blood 1,1-Dichloroethane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.0071	Range of Values	2800	2800
.	Missing	615	3415

LBDV1ALC - Blood 1,1-Dichloroethane Comment Code

Variable Name:: LBDV1ALC
SAS Label:: Blood 1,1-Dichloroethane Comment Code
English Text:: Blood 1,1-Dichloroethane Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2800	2800
2	detectable result and exceeds the calibrated range of assay	0	2800
.	Missing	615	3415

LBXV1D - Blood 1,2-Dichlorobenzene (ng/mL)

Variable Name:: LBXV1D
SAS Label:: Blood 1,2-Dichlorobenzene (ng/mL)
English Text:: Blood 1,2-Dichlorobenzene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0177 to 0.054	Range of Values	2803	2803
.	Missing	612	3415

LBDV1DLC - Blood 1,2-Dichlorobenzene Comment Code

Variable Name:: LBDV1DLC
SAS Label:: Blood 1,2-Dichlorobenzene Comment Code
English Text:: Blood 1,2-Dichlorobenzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	1	1
1	below detectable limit	2802	2803
2	detectable result and exceeds the calibrated range of assay	0	2803
.	Missing	612	3415

LBXV1E - Blood 1,1-Dichloroethene (ng/mL)

Variable Name:: LBXV1E
SAS Label:: Blood 1,1-Dichloroethene (ng/mL)
English Text:: Blood 1,1-Dichloroethene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0064 to 0.0064	Range of Values	2810	2810
.	Missing	605	3415

LBDV1ELC - Blood 1,1-Dichloroethene Comment Code

Variable Name:: LBDV1ELC
SAS Label:: Blood 1,1-Dichloroethene Comment Code
English Text:: Blood 1,1-Dichloroethene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2810	2810
2	detectable result and exceeds the calibrated range of assay	0	2810
.	Missing	605	3415

LBXV2A - Blood 1,2-Dichloroethane (ng/mL)

Variable Name:: LBXV2A
SAS Label:: Blood 1,2-Dichloroethane (ng/mL)
English Text:: Blood 1,2-Dichloroethane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.057	Range of Values	2767	2767
.	Missing	648	3415

LBDV2ALC - Blood 1,2-Dichloroethane Comment Code

Variable Name:: LBDV2ALC
SAS Label:: Blood 1,2-Dichloroethane Comment Code
English Text:: Blood 1,2-Dichloroethane Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	31	31
1	below detectable limit	2736	2767
2	detectable result and exceeds the calibrated range of assay	0	2767
.	Missing	648	3415

LBXV2C - Blood cis-1,2-Dichloroethene (ng/mL)

Variable Name:: LBXV2C
SAS Label:: Blood cis-1,2-Dichloroethene (ng/mL)
English Text:: Blood cis-1,2-Dichloroethene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.0071	Range of Values	2897	2897
.	Missing	518	3415

LBDV2CLC - Blood cis-1,2-Dichloroethene Comt Code

Variable Name:: LBDV2CLC
SAS Label:: Blood cis-1,2-Dichloroethene Comt Code
English Text:: Blood cis-1,2-Dichloroethene Comt Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2897	2897
2	detectable result and exceeds the calibrated range of assay	0	2897
.	Missing	518	3415

LBXV2E - Blood 1,1,2-Trichloroethane (ng/mL)

Variable Name:: LBXV2E
SAS Label:: Blood 1,1,2-Trichloroethane (ng/mL)
English Text:: Blood 1,1,2-Trichloroethane(ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.0071	Range of Values	2701	2701
.	Missing	714	3415

LBDV2ELC - Blood 1,1,2-Trichloroethane Comt Code

Variable Name:: LBDV2ELC
SAS Label:: Blood 1,1,2-Trichloroethane Comt Code
English Text:: Blood 1,1,2-Trichloroethane Comt Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2701	2701
2	detectable result and exceeds the calibrated range of assay	0	2701
.	Missing	714	3415

LBXV2P - Blood 1,2-Dibromo-3-chloropropane(ng/mL)

Variable Name:: LBXV2P
SAS Label:: Blood 1,2-Dibromo-3-chloropropane(ng/mL)
English Text:: Blood 1,2-Dibromo-3-chloropropane(ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0707 to 0.0707	Range of Values	2837	2837
.	Missing	578	3415

LBDV2PLC - Blood 1,2-Dibromo-3-chloropropane Comt

Variable Name:: LBDV2PLC
SAS Label:: Blood 1,2-Dibromo-3-chloropropane Comt
English Text:: Blood 1,2-Dibromo-3-chloropropane Comt
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2837	2837
2	detectable result and exceeds the calibrated range of assay	0	2837
.	Missing	578	3415

LBXV2T - Blood trans-1,2-Dichloroethene (ng/mL)

Variable Name:: LBXV2T
SAS Label:: Blood trans-1,2-Dichloroethene (ng/mL)
English Text:: Blood trans-1,2-Dichloroethene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.0071	Range of Values	2843	2843
.	Missing	572	3415

LBDV2TLC - Blood trans-1,2-Dichloroethene Comt Code

Variable Name:: LBDV2TLC
SAS Label:: Blood trans-1,2-Dichloroethene Comt Code
English Text:: Blood trans-1,2-Dichloroethene Comt Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2843	2843
2	detectable result and exceeds the calibrated range of assay	0	2843
.	Missing	572	3415

LBXV3B - Blood 1,3-Dichlorobenzene (ng/mL)

Variable Name:: LBXV3B
SAS Label:: Blood 1,3-Dichlorobenzene (ng/mL)
English Text:: Blood 1,3-Dichlorobenzene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0177 to 0.0177	Range of Values	2484	2484
.	Missing	931	3415

LBDV3BLC - Blood 1,3-Dichlorobenzene Comment Code

Variable Name:: LBDV3BLC
SAS Label:: Blood 1,3-Dichlorobenzene Comment Code
English Text:: Blood 1,3-Dichlorobenzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2484	2484
2	detectable result and exceeds the calibrated range of assay	0	2484
.	Missing	931	3415

LBXV4E - Blood 1,1,2,2-Tetrachloroethane (ng/mL)

Variable Name:: LBXV4E
SAS Label:: Blood 1,1,2,2-Tetrachloroethane (ng/mL)
English Text:: Blood 1,1,2,2-Tetrachloroethane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.0071	Range of Values	2922	2922
.	Missing	493	3415

LBDV4ELC - Blood 1,1,2,2-Tetrachloroethane Com Code

Variable Name:: LBDV4ELC
SAS Label:: Blood 1,1,2,2-Tetrachloroethane Com Code
English Text:: Blood 1,1,2,2-Tetrachloroethane Com Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2922	2922
2	detectable result and exceeds the calibrated range of assay	0	2922
.	Missing	493	3415

LBXV4C - Blood Tetrachloroethene (ng/mL)

Variable Name:: LBXV4C
SAS Label:: Blood Tetrachloroethene (ng/mL)
English Text:: Blood Tetrachloroethene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0339 to 9.44	Range of Values	2735	2735
.	Missing	680	3415

LBDV4CLC - Blood Tetrachloroethene Comment Code

Variable Name:: LBDV4CLC
SAS Label:: Blood Tetrachloroethene Comment Code
English Text:: Blood Tetrachloroethene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	337	337
1	below detectable limit	2398	2735
2	detectable result and exceeds the calibrated range of assay	0	2735
.	Missing	680	3415

LBXVBZ - Blood Benzene (ng/mL)

Variable Name:: LBXVBZ
SAS Label:: Blood Benzene (ng/mL)
English Text:: Blood Benzene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.017 to 1.4	Range of Values	2685	2685
.	Missing	730	3415

LBDVBZLC - Blood Benzene Comment Code

Variable Name:: LBDVBZLC
SAS Label:: Blood Benzene Comment Code
English Text:: Blood Benzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	881	881
1	below detectable limit	1804	2685
2	detectable result and exceeds the calibrated range of assay	0	2685
.	Missing	730	3415

LBXVCB - Blood Chlorobenzene (ng/mL)

Variable Name:: LBXVCB
SAS Label:: Blood Chlorobenzene (ng/mL)
English Text:: Blood Chlorobenzene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0078 to 0.0078	Range of Values	2749	2749
.	Missing	666	3415

LBDVCBLC - Blood Chlorobenzene Comment Code

Variable Name:: LBDVCBLC
SAS Label:: Blood Chlorobenzene Comment Code
English Text:: Blood Chlorobenzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2749	2749
2	detectable result and exceeds the calibrated range of assay	0	2749
.	Missing	666	3415

LBX4CE - Blood 1,1,1,2-tetrachloroethane (ng/mL)

Variable Name:: LBX4CE
SAS Label:: Blood 1,1,1,2-tetrachloroethane (ng/mL)
English Text:: Blood 1,1,1,2-tetrachloroethane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0283	0.0283	2750	2750
.	Missing	665	3415

LBD4CELC - Blood 1,1,1,2-tetrachloroethane Cmt Code

Variable Name:: LBD4CELC
SAS Label:: Blood 1,1,1,2-tetrachloroethane Cmt Code
English Text:: Blood 1,1,1,2-tetrachloroethane Cmt Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2750	2750
2	detectable result and exceeds the calibrated range of assay	0	2750
.	Missing	665	3415

LBXVCT - Blood Carbon Tetrachloride (ng/mL)

Variable Name:: LBXVCT
SAS Label:: Blood Carbon Tetrachloride (ng/mL)
English Text:: Blood Carbon Tetrachloride (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0035 to 0.111	Range of Values	2812	2812
.	Missing	603	3415

LBDVCTLC - Blood Carbon Tetrachloride Comment Code

Variable Name:: LBDVCTLC
SAS Label:: Blood Carbon Tetrachloride Comment Code
English Text:: Blood Carbon Tetrachloride Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	3	3
1	below detectable limit	2809	2812
2	detectable result and exceeds the calibrated range of assay	0	2812
.	Missing	603	3415

LBXVDB - Blood 1,4-Dichlorobenzene (ng/mL)

Variable Name:: LBXVDB
SAS Label:: Blood 1,4-Dichlorobenzene (ng/mL)
English Text:: Blood 1,4-Dichlorobenzene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0283 to 128	Range of Values	2332	2332
.	Missing	1083	3415

LBDVDBLC - Blood 1,4-Dichlorobenzene Comment Code

Variable Name:: LBDVDBLC
SAS Label:: Blood 1,4-Dichlorobenzene Comment Code
English Text:: Blood 1,4-Dichlorobenzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	1530	1530
1	below detectable limit	802	2332
2	detectable result and exceeds the calibrated range of assay	0	2332
.	Missing	1083	3415

LBXVDE - Blood 1,2-dibromoethane (ng/ml)

Variable Name:: LBXVDE
SAS Label:: Blood 1,2-dibromoethane (ng/ml)
English Text:: Blood 1,2-dibromoethane (ng/ml)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0106	0.0106	2577	2577
.	Missing	838	3415

LBDVDELC - Blood 1,2-dibromoethane Comment Code

Variable Name:: LBDVDELC
SAS Label:: Blood 1,2-dibromoethane Comment Code
English Text:: Blood 1,2-dibromoethane Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2577	2577
2	detectable result and exceeds the calibrated range of assay	0	2577
.	Missing	838	3415

LBXVDM - Blood Dibromomethane (ng/mL)

Variable Name:: LBXVDM
SAS Label:: Blood Dibromomethane (ng/mL)
English Text:: Blood Dibromomethane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0212 to 0.197	Range of Values	2712	2712
.	Missing	703	3415

LBDVDMLC - Blood Dibromomethane Comment Code

Variable Name:: LBDVDMLC
SAS Label:: Blood Dibromomethane Comment Code
English Text:: Blood Dibromomethane Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	4	4
1	below detectable limit	2708	2712
2	detectable result and exceeds the calibrated range of assay	0	2712
.	Missing	703	3415

LBXVDP - Blood 1,2-Dichloropropane (ng/mL)

Variable Name:: LBXVDP
SAS Label:: Blood 1,2-Dichloropropane (ng/mL)
English Text:: Blood 1,2-Dichloropropane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.022	Range of Values	2840	2840
.	Missing	575	3415

LBDVDPLC - Blood 1,2-Dichloropropane Comment Code

Variable Name:: LBDVDPLC
SAS Label:: Blood 1,2-Dichloropropane Comment Code
English Text:: Blood 1,2-Dichloropropane Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	2	2
1	below detectable limit	2838	2840
2	detectable result and exceeds the calibrated range of assay	0	2840
.	Missing	575	3415

LBXVEB - Blood Ethylbenzene (ng/mL)

Variable Name:: LBXVEB
SAS Label:: Blood Ethylbenzene (ng/mL)
English Text:: Blood Ethylbenzene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.017 to 6.23	Range of Values	2750	2750
.	Missing	665	3415

LBDVEBLC - Blood Ethylbenzene Comment Code

Variable Name:: LBDVEBLC
SAS Label:: Blood Ethylbenzene Comment Code
English Text:: Blood Ethylbenzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	1128	1128
1	below detectable limit	1622	2750
2	detectable result and exceeds the calibrated range of assay	0	2750
.	Missing	665	3415

LBXVFN - Blood furan (ng/ml)

Variable Name:: LBXVFN
SAS Label:: Blood furan (ng/ml)
English Text:: Blood furan (ng/ml)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0177 to 0.287	Range of Values	2758	2758
.	Missing	657	3415

LBDVFNLC - Blood furan Comment Code

Variable Name:: LBDVFNLC
SAS Label:: Blood furan Comment Code
English Text:: Blood furan Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	313	313
1	below detectable limit	2445	2758
2	detectable result and exceeds the calibrated range of assay	0	2758
.	Missing	657	3415

LBXVHE - Blood Hexachloroethane (ng/mL)

Variable Name:: LBXVHE
SAS Label:: Blood Hexachloroethane (ng/mL)
English Text:: Blood Hexachloroethane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0078 to 0.0078	Range of Values	2627	2627
.	Missing	788	3415

LBDVHELC - Blood Hexachloroethane Comment Code

Variable Name:: LBDVHELC
SAS Label:: Blood Hexachloroethane Comment Code
English Text:: Blood Hexachloroethane Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2627	2627
2	detectable result and exceeds the calibrated range of assay	0	2627
.	Missing	788	3415

LBXVIPB - Blood isopropylbenzene (ng/ml)

Variable Name:: LBXVIPB
SAS Label:: Blood isopropylbenzene (ng/ml)
English Text:: Blood isopropylbenzene (ng/ml)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0283 to 0.117	Range of Values	2752	2752
.	Missing	663	3415

LBDVIPLC - Blood isopropylbenzene Comment Code

Variable Name:: LBDVIPLC
SAS Label:: Blood isopropylbenzene Comment Code
English Text:: Blood isopropylbenzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	5	5
1	below detectable limit	2747	2752
2	detectable result and exceeds the calibrated range of assay	0	2752
.	Missing	663	3415

LBXVMC - Blood Methylene Chloride (ng/mL)

Variable Name:: LBXVMC
SAS Label:: Blood Methylene Chloride (ng/mL)
English Text:: Blood Methylene Chloride (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.1768 to 3.32	Range of Values	2569	2569
.	Missing	846	3415

LBDVMCLC - Blood Methylene Chloride Comment Code

Variable Name:: LBDVMCLC
SAS Label:: Blood Methylene Chloride Comment Code
English Text:: Blood Methylene Chloride Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	9	9
1	below detectable limit	2560	2569
2	detectable result and exceeds the calibrated range of assay	0	2569
.	Missing	846	3415

LBXVOX - Blood o-Xylene (ng/mL)

Variable Name:: LBXVOX
SAS Label:: Blood o-Xylene (ng/mL)
English Text:: Blood o-Xylene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.017 to 3.1	Range of Values	2835	2835
.	Missing	580	3415

LBDVOXLC - Blood o-Xylene Comment Code

Variable Name:: LBDVOXLC
SAS Label:: Blood o-Xylene Comment Code
English Text:: Blood o-Xylene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	1466	1466
1	below detectable limit	1369	2835
2	detectable result and exceeds the calibrated range of assay	0	2835
.	Missing	580	3415

LBXVST - Blood Styrene (ng/mL)

Variable Name:: LBXVST
SAS Label:: Blood Styrene (ng/mL)
English Text:: Blood Styrene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0212 to 4.1	Range of Values	2719	2719
.	Missing	696	3415

LBDVSTLC - Blood Styrene Comment Code

Variable Name:: LBDVSTLC
SAS Label:: Blood Styrene Comment Code
English Text:: Blood Styrene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	949	949
1	below detectable limit	1770	2719
2	detectable result and exceeds the calibrated range of assay	0	2719
.	Missing	696	3415

LBXVTC - Blood Trichloroethene (ng/mL)

Variable Name:: LBXVTC
SAS Label:: Blood Trichloroethene (ng/mL)
English Text:: Blood Trichloroethene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0085 to 0.84	Range of Values	2952	2952
.	Missing	463	3415

LBDVTCLC - Blood Trichloroethene Comment Code

Variable Name:: LBDVTCLC
SAS Label:: Blood Trichloroethene Comment Code
English Text:: Blood Trichloroethene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	42	42
1	below detectable limit	2910	2952
2	detectable result and exceeds the calibrated range of assay	0	2952
.	Missing	463	3415

LBXVTE - Blood 1,1,1-trichloroethane (ng/mL)

Variable Name:: LBXVTE
SAS Label:: Blood 1,1,1-trichloroethane (ng/mL)
English Text:: Blood 1,1,1-trichloroethane (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0071 to 0.327	Range of Values	2907	2907
.	Missing	508	3415

LBDVTELC - Blood 1,1,1-trichloroethane Comment Code

Variable Name:: LBDVTELC
SAS Label:: Blood 1,1,1-trichloroethane Comment Code
English Text:: Blood 1,1,1-trichloroethane Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	45	45
1	below detectable limit	2862	2907
2	detectable result and exceeds the calibrated range of assay	0	2907
.	Missing	508	3415

LBXVTO - Blood Toluene (ng/mL)

Variable Name:: LBXVTO
SAS Label:: Blood Toluene (ng/mL)
English Text:: Blood Toluene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0177 to 24.1	Range of Values	2731	2731
.	Missing	684	3415

LBDVTOLC - Blood Toluene Comment Code

Variable Name:: LBDVTOLC
SAS Label:: Blood Toluene Comment Code
English Text:: Blood Toluene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	2584	2584
1	below detectable limit	147	2731
2	detectable result and exceeds the calibrated range of assay	0	2731
.	Missing	684	3415

LBXVTP - Blood 1,2,3-trichloropropane (ng/ml)

Variable Name:: LBXVTP
SAS Label:: Blood 1,2,3-trichloropropane (ng/ml)
English Text:: Blood 1,2,3-trichloropropane (ng/ml)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0283	0.0283	2592	2592
.	Missing	823	3415

LBDVTPLC - Blood 1,2,3-trichloropropane Comt Code

Variable Name:: LBDVTPLC
SAS Label:: Blood 1,2,3-trichloropropane Comt Code
English Text:: Blood 1,2,3-trichloropropane Comt Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	0	0
1	below detectable limit	2592	2592
2	detectable result and exceeds the calibrated range of assay	0	2592
.	Missing	823	3415

LBXVXY - Blood m-/p-Xylene (ng/mL)

Variable Name:: LBXVXY
SAS Label:: Blood m-/p-Xylene (ng/mL)
English Text:: Blood m-/p-Xylene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.024 to 15	Range of Values	2823	2823
.	Missing	592	3415

LBDVXYLC - Blood m-/p-Xylene Comment Code

Variable Name:: LBDVXYLC
SAS Label:: Blood m-/p-Xylene Comment Code
English Text:: Blood m-/p-Xylene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	2472	2472
1	below detectable limit	351	2823
2	detectable result and exceeds the calibrated range of assay	0	2823
.	Missing	592	3415

LBX2DF - Blood 2,5-Dimethylfuran (ng/mL)

Variable Name:: LBX2DF
SAS Label:: Blood 2,5-Dimethylfuran (ng/mL)
English Text:: Blood 2,5-Dimethylfuran (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.0078 to 0.44	Range of Values	2745	2745
.	Missing	670	3415

LBD2DFLC - Blood 2,5-Dimethylfuran Comment Code

Variable Name:: LBD2DFLC
SAS Label:: Blood 2,5-Dimethylfuran Comment Code
English Text:: Blood 2,5-Dimethylfuran Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	506	506
1	below detectable limit	2239	2745
2	detectable result and exceeds the calibrated range of assay	0	2745
.	Missing	670	3415

LBXVNB - Blood Nitrobenzene (ng/mL)

Variable Name:: LBXVNB
SAS Label:: Blood Nitrobenzene (ng/mL)
English Text:: Blood Nitrobenzene (ng/mL)
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.2263 to 0.62	Range of Values	2764	2764
.	Missing	651	3415

LBDVNBLC - Blood Nitrobenzene Comment Code

Variable Name:: LBDVNBLC
SAS Label:: Blood Nitrobenzene Comment Code
English Text:: Blood Nitrobenzene Comment Code
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	detectable result	1	1
1	below detectable limit	2763	2764
2	detectable result and exceeds the calibrated range of assay	0	2764
.	Missing	651	3415

VTQ210 - Attached garage?

Variable Name:: VTQ210
SAS Label:: Attached garage?
English Text:: Does your home have an attached garage?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	1099	1099
2	No	2020	3119
7	Refused	0	3119
9	Don't know	0	3119
.	Missing	296	3415

VTQ220 - Private well?

Variable Name:: VTQ220
SAS Label:: Private well?
English Text:: Is the source of water for your home from a private well?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	363	363
2	No	2740	3103
7	Refused	0	3103
9	Don't know	16	3119
.	Missing	296	3415

VTQ200A - Store paints or fuels inside home?

Variable Name:: VTQ200A
SAS Label:: Store paints or fuels inside home?
English Text:: {Do you/Does she/Does he} store paints or fuels inside {your/her/his} home? Include {your/her/his} basement {and attached garage}.
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	1066	1066
2	No	2039	3105
7	Refused	0	3105
9	Don't know	13	3118
.	Missing	297	3415

VTQ230A - Toilet bowl deodorizers?

Variable Name:: VTQ230A
SAS Label:: Toilet bowl deodorizers?
English Text:: Do you use toilet bowl deodorizers inside your home?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	1380	1380
2	No	1714	3094
7	Refused	0	3094
9	Don't know	24	3118
.	Missing	297	3415

VTQ230B - Moth balls or crystals?

Variable Name:: VTQ230B
SAS Label:: Moth balls or crystals?
English Text:: Do you use moth balls or crystals inside your home?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	281	281
2	No	2817	3098
7	Refused	0	3098
9	Don't know	20	3118
.	Missing	297	3415

VTQ240A - Pump gas into a car or motor vehicle?

Variable Name:: VTQ240A
SAS Label:: Pump gas into a car or motor vehicle?
English Text:: In the last three days, did you pump gas into your car or other motor vehicle yourself?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	1193	1193
2	No	1925	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ240B - How long ago did you pump gas?

Variable Name:: VTQ240B
SAS Label:: How long ago did you pump gas?
English Text:: How long ago, in hours, did {you/she/he} pump gas into a car?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1 to 72	Range of Values	1193	1193
777	Refused	0	1193
999	Don't know	0	1193
.	Missing	2222	3415

VTQ250A - Spend time at swimming pool?

Variable Name:: VTQ250A
SAS Label:: Spend time at swimming pool?
English Text:: In the last three days, did you spend any time at a swimming pool, in a hot tub, or in a steam room?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	108	108
2	No	3010	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ250B - How long ago at swimming pool?

Variable Name:: VTQ250B
SAS Label:: How long ago at swimming pool?
English Text:: How long ago, in hours, has it been since {you/she/he} spent time in a swimming pool, in a hot tub, or in a steam room?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1 to 72	Range of Values	107	107
777	Refused	0	107
999	Don't know	1	108
.	Missing	3307	3415

VTQ260A - Visit a dry cleaning shop?

Variable Name:: VTQ260A
SAS Label:: Visit a dry cleaning shop?
English Text:: In the last three days, did you visit a dry cleaning shop or wear clothes that had been dry-cleaned within the last week?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	182	182
2	No	2936	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ260B - Spend 10 minutes near cigarette smoke?

Variable Name:: VTQ260B
SAS Label:: Spend 10 minutes near cigarette smoke?
English Text:: In the last three days, did you spend 10 or more minutes near a person who was smoking a cigarette, cigar, or pipe?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	1157	1157
2	No	1960	3117
7	Refused	0	3117
9	Don't know	1	3118
.	Missing	297	3415

VTQ270A - Take a hot shower?

Variable Name:: VTQ270A
SAS Label:: Take a hot shower?
English Text:: In the last three days, did you take a hot shower or bath for five minutes or longer?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	2662	2662
2	No	455	3117
7	Refused	0	3117
9	Don't know	1	3118
.	Missing	297	3415

VTQ270B - How long since hot shower?

Variable Name:: VTQ270B
SAS Label:: How long since hot shower?
English Text:: How long ago, in hours, has it been since {your/SP's} last shower or hot bath?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1 to 72	Range of Values	2661	2661
777	Refused	0	2661
999	Don't know	1	2662
.	Missing	753	3415

VTQ280A - Breathe fumes from paints?

Variable Name:: VTQ280A
SAS Label:: Breathe fumes from paints?
English Text:: In the last three days, did you breath fumes from paints?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	205	205
2	No	2913	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ280B - Breathe fumes from degreasing cleaners?

Variable Name:: VTQ280B
SAS Label:: Breathe fumes from degreasing cleaners?
English Text:: In the last three days, did you breath fumes from degreasing cleaners?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	230	230
2	No	2886	3116
7	Refused	0	3116
9	Don't know	2	3118
.	Missing	297	3415

VTQ280C - Breathe fumes from diesel fuel?

Variable Name:: VTQ280C
SAS Label:: Breathe fumes from diesel fuel?
English Text:: In the last three days, did you breath fumes from diesel fuel or kerosene?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	258	258
2	No	2860	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ280D - Breathe fumes from paint thinner?

Variable Name:: VTQ280D
SAS Label:: Breathe fumes from paint thinner?
English Text:: In the last three days, did you breath fumes from paint thinner, brush cleaner, or furniture stripper?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	103	103
2	No	3015	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ280E - Breathe fumes from drycleaning fluid?

Variable Name:: VTQ280E
SAS Label:: Breathe fumes from drycleaning fluid?
English Text:: In the last three days, did you breath fumes from drycleaning fluid or spot remover?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	99	99
2	No	3018	3117
7	Refused	0	3117
9	Don't know	1	3118
.	Missing	297	3415

VTQ280F - Breathe fumes from fingernail polish?

Variable Name:: VTQ280F
SAS Label:: Breathe fumes from fingernail polish?
English Text:: In the last three days, did you breath fumes from fingernail polish or fingernail polish remover?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	475	475
2	No	2643	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ280G - Breathe fumes from glue?

Variable Name:: VTQ280G
SAS Label:: Breathe fumes from glue?
English Text:: In the last three days, did you breath fumes from glues or adhesives used for hobbies or crafts?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	142	142
2	No	2976	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

VTQ280H - Breathe fumes from varnish?

Variable Name:: VTQ280H
SAS Label:: Breathe fumes from varnish?
English Text:: In the last three days, did you breath fumes from varnish or stain?
Target:: Both males and females 12 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	58	58
2	No	3060	3118
7	Refused	0	3118
9	Don't know	0	3118
.	Missing	297	3415

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