National Health and Nutrition Examination Survey

2017-2018 Data Documentation, Codebook, and Frequencies

Audiometry (AUX_J)

Data File: AUX_J.xpt

First Published: November 2021

Last Revised: NA

Component Description

The NHANES 2017-2018 audiometry examination component (variable name prefix AUX) consists of four parts:

1) Pre-exam audiometric question – a series of questions to identify conditions that would affect how audiometric testing is conducted, or how results are interpreted. Questions include whether the participant has ear tubes, a current cold or ear problem, recent loud noise exposure, and listened to music with earphones in the past 24 hours. NOTE: more extensive data relating to a survey participant’s hearing status and history of noise exposure are contained in the audiometry questionnaire (AUQ) section of the NHANES Sample Person Questionnaire.

2) Otoscopy – a brief otoscopic screening (physical) exam of the ear canals and eardrums to identify abnormalities, which would require alternate audiometric procedures or influence interpretation of test results, and to identify conditions which might require medical referral. The exam screened for excessive or impacted ear cerumen (wax), physical abnormalities, or collapsing external ear canals.

3) Middle ear testing – a measurement of eardrum compliance by placing a probe with a rubber tip into the entrance of the ear canal. It is used to identify middle ear pathologies that might contribute to a hearing loss. There are three middle ear tests: tympanometry, wideband reflectance, and acoustic reflex. The AUX_J data file consists of tympanometric quantitative measurement variables for middle ear volume, pressure, compliance, and gradient. It also includes tympanogram quality ratings and scores variables. The raw data for the participant's tympanometric curves (AUXTYM_J), wideband reflectance curves (AUXWBR_J), and acoustic reflex curves (AUXAR_J) are released separately.

4) Pure tone air conduction audiometry – a measurement of hearing sensitivity by presenting pure tone signals to the ear through earphones and by varying the intensity of the signals until a participant’s hearing threshold at that frequency is determined. Testing is performed at frequencies across the range of human hearing.

Eligible Sample

All participants aged 6–19 years and 70 years and older were eligible. There were no precluding conditions for any part of the audiologic exam. However, participants using hearing aids who were not able to remove them for testing and participants who had sufficient ear pain at the time of the exam that they could not tolerate headphones were excluded.

Protocol and Procedure

All audiometry exam sections were performed by trained examiners on participants in a dedicated sound-isolating room in the Mobile Examination Center (MEC). Hearing threshold testing was conducted on both ears of participants at seven frequencies. Children aged 6–11 years were tested in the following frequency order so that data may be obtained for more important frequencies first in case the child’s attention wanes before all frequencies can be completed: Ear 1: 1000, 2000, 1000 (repeat), 4000, 8000 Hz. Ear 2: 1000, 2000, 1000 (repeat), 4000, 8000, 6000, 3000, 500 Hz. Ear 1: 6000, 3000, 500 Hz. Adolescents aged 12–19 years and adults aged 70 years and older were tested in the frequency order 1000, 500, 1000 (repeat), 2000, 3000, 4000, 6000, 8000 Hz for ear 1 and then for ear 2. The ear tested first was varied to prevent biasing the data. However, if the participant indicated one ear hearing better than the other, the ear with better sensitivity was tested first. Testing was conducted according to a modified Hughson Westlake procedure using the automated testing mode of the audiometer. The approximate audiometer output constraints for standard and insert earphones was 100 decibels (dB) at 500 to 6000 Hz and 90 dB at 8000 Hz. Some earphones might produce slightly higher output than others. A threshold greater than 90 dB can be obtained using a manual testing mode. Observed values, therefore, varied between -10 and 110 dB. If a participant did not respond to the signal tone at any level for one or more frequencies because of deafness or severe hearing loss, a code value of 666 was entered. Manual testing was conducted on children aged 6-8 years. Manual testing was also conducted when the participant could not operate the response switch or responded too slowly for the audiometer to accurately record the response.

In some instances, if a pure tone audiometric signal is sufficiently loud, it can "crossover" and be heard by the opposite ear via bone conduction. When this occurs, it is difficult to determine if the threshold obtained is truly the threshold of the test ear, or an artifact of the non-test ear (which may have better hearing). For the NHANES hearing threshold testing, a crossover retesting protocol was performed whenever the observed threshold at any given frequency was poorer in one ear than the other by 25 dB at 500 and 1000 Hz or 40 dB at any higher frequency. Retesting was accomplished using insert earphones, which are smaller and have less direct contact with the bones of the head. Thus, a much louder stimulus is required before crossover occurs. Due to the complexity of the procedure, masking was not employed in the NHANES audiometry exam.

Quality Assurance & Quality Control

Instrumentation for the audiometry component included an Audiometric Research Tool (ART) system with standard TDH-49P headphones and Etymotic EarTone 3A insert earphones. Interacoustics Titan (middle ear analyzer) was used to conduct middle ear testing. Daily monitoring ambient noise levels was accomplished with a Quest Model BA-202-27 Bioacoustic Simulator. AUX data were entered directly into the computerized NHANES database system. Data from the ART system and Interacoustics Titan were captured electronically and uploaded into the survey information system automatically.

Beginning in the 2017-2018, the ART system was used to conduct the pure-tone air conduction hearing test on survey participants. The ART system is a comprehensive, high configurable audiometer designed for the research application. The ART system consists of a dedicated National Instruments hardware and ART software as an audiometer. The ART software has been programmed to conduct the threshold test automatically and can also be used to conduct the threshold test manually. The ART system also contains an integrated calibration system, called Trident, to measure the sound levels put out by the system. A G.R.A.S. calibration kit with couplers for each type of earphones is used in conjunction with the ART to monitor calibration. The ART calibrations include the Trident software itself check, the background noise measurement, an acoustic calibration check (to measure the output, distortion, and linearity of the audiometer through both standard and insert earphones), and a listening check (tone quality, attenuator accuracy, headphone cords, crossover, etc.). The ART calibration checks were conducted at the beginning of each survey location, daily throughout the entire exam, and at the end of each survey location to ensure that the accuracy has not shifted. In addition to these calibration checks, each ART system received an exhaustive calibration once a year or whenever unresolvable problems were discovered during the calibration checks. The calibration must be accomplished by the manufacturer or a certified laboratory to ensure that the calibrations are traceable to the National Institute of Standards and Technology (NIST).

An Interacoustics Titan was used to conduct middle ear testing. The physical volume was checked on the Titan to ensure that it was within the calibration limits. In addition, the MEC Health Technicians ran a sample test on one ear to ensure that the unit is producing clear, normal graphs for the tympanogram and wideband reflectance. The Titan calibration checks were conducted at the beginning of each survey location, daily throughout the entire exam, and at the end each survey location. The Titan also received an exhaustive NIST-traceable calibration check annually.

A Bioacoustic Simulator was used to continuously measure the background noise levels in the audiometric test room during the exam. Pure tone audiometric testing was not performed if ambient noise levels in the test booth exceeded maximum permissible levels. The microphones and sound measurement function of the bioacoustic simulator were checked by a certified laboratory annually or whenever unsolvable problems were discovered.

As an additional quality measure, all audiograms, whether conducted in automated or manual mode, tested the 1000 Hz frequency twice in each ear as a measure of the reliability of the participant’s responses. Pure tone audiograms were not accepted if there was more than a 10 dB difference between them. For further details regarding any of these procedures, analysts should consult the NHANES 2017-2018 Audiometry Procedures Manual.

The MEC health technicians who performed the audiometry examination component of NHANES were professionally trained by a certified audiologist from the National Institute for Occupational Safety & Health (NIOSH). NIOSH also monitored the performance of each health technician on a regular basis. Field visits to each MEC were conducted by the NIOSH audiologist at least three times per year. Additionally, NCHS project officers visited the MECs approximately twice per year to observe the audiometry examinations and verify that standard testing procedures were being followed. NIOSH consultants provided the MEC health technicians with annual retraining and protocol updates.

The quantitative tympanometry measurements reported in this data file represent the single best of each of the two curves obtained during middle ear testing. Subjective quality ratings for these tympanograms are the variables AUAREQC and AUALEQC. These represent a qualitative assessment of each tympanogram by the consulting audiologist. The consulting audiologist also scored these tympanograms using a common classification system developed by Liden (1969) and modified by Jerger (1970). Two variables AUATYMTR and AUATYMTL provide information about what the tympanometry results mean in terms of the participant’s middle ear status.

Data Processing and Editing

The wording of some questions asked before the audiometry exam has been simplified for children aged 6–11 years. Therefore, there are two separated sets of variables for the pre-exam audiometric questionnaire: one for children aged 6–11 years and another for adolescents aged 12–19 years and adults aged 70 years and older.

All data were captured in the NHANES computerized database system, with audiometric and middle ear analyzer data automatically uploaded. On a continuous basis, a consulting audiologist performed a clinical review of all data for each participant as it was received, checking for quality and consistency. In addition, a computerized data editing program was developed to check for logical inconsistencies in the data and technician errors, and to cross-check other issues affecting data quality (consistency in identifying potential instances where crossover effects might have occurred, assurance of randomization of the initial test ear, etc.). Back-end edits of the data were performed as needed when errors were detected.

Analytic Notes

This examination was administered to a full sample of participants in the MEC. Therefore, the NHANES MEC examination weights should be used for data analysis. For more information on the use of sample weights in current NHANES data analysis and for combining data across multiple NHANES survey years, please refer to the NHANES Analytic Guidelines and the online NHANES Tutorial for further details on the use of sample weights and other analytic issues.

Audiologic data analysis is a complex procedure and requires a thorough knowledge of the specialty content area for valid results to be obtained. If an analyst does not have professional experience in this area, it is recommended that audiologic consultation be obtained to help formulate and review the results of the analysis. Data analysts should be especially aware of the fact that the number "666" in all primary audiometric frequency data fields (AUXU1K1R through AUXU8KL) as well as in all repeat test frequencies (AUXR1K1R through AUXR8KL) is a qualitative code for nonresponse at a particular frequency and does not represent actual measured decibel hearing threshold values. These nonresponse values should be appropriately edited prior to any numerical data analysis.

References

Jerger, J.F. (1970). Clinical experience with impedence audiometry. Archives of Otolaryngology, 92, 311-324.
Liden, G. (1969). The scope and application of current audiometric tests. Journal of Laryngology and Otology, 83, 505-520.

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 6 YEARS - 19 YEARS

AUAEXSTS - Status of an Audio Exam

Variable Name:: AUAEXSTS
SAS Label:: Status of an Audio Exam
English Text:: Status of an Audiometry Exam
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Complete	2343	2343
2	Partial	609	2952
3	Not done	179	3131
.	Missing	0	3131

AUAEXCMT - Comment code for an Audio Exam

Variable Name:: AUAEXCMT
SAS Label:: Comment code for an Audio Exam
English Text:: Comment code for an Audio Exam
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
2	SP refusal	45	45
3	No time	22	67
4	Physical limitation	161	228
5	Communication problem	5	233
6	Equipment failure	23	256
7	SP ill/emergency	5	261
14	Interrupted	1	262
51	SP unable to comply	319	581
56	Came late/left early	129	710
72	Error (technician/software/supply)	33	743
99	Other, specify	24	767
122	Language barrier	2	769
150	SP with parent SP	2	771
.	Missing	2360	3131

AUQ011 - Have Ear Tube, Right or Left Ear?

Variable Name:: AUQ011
SAS Label:: Have Ear Tube, Right or Left Ear?
English Text:: Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s))
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes, right ear	2	2
2	Yes, left ear	5	7
3	Yes, both ears	14	21
4	No	948	969
7	Refused	4	973
9	Don't know	5	978
.	Missing	2153	3131

AUQ540 - Had Cold, Runny Nose, Earache Today?

Variable Name:: AUQ540
SAS Label:: Had Cold, Runny Nose, Earache Today?
English Text:: Do you have a cold, runny nose, or earache today?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	170	170
2	No	800	970
7	Refused	0	970
9	Don't know	5	975
.	Missing	2156	3131

AUQ550 - Had Cold, Runny Nose, Earache Yesterday?

Variable Name:: AUQ550
SAS Label:: Had Cold, Runny Nose, Earache Yesterday?
English Text:: Did you have a cold, runny nose, or earache yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	56	56
2	No	741	797
7	Refused	1	798
9	Don't know	5	803
.	Missing	2328	3131

AUQ550A - Had Cold?

Variable Name:: AUQ550A
SAS Label:: Had Cold?
English Text:: Have you had a cold today or yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	42	42
2	No (checkbox unchecked)	184	226
9	Don't know	0	226
.	Missing	2905	3131

AUQ550B - Had Runny Nose?

Variable Name:: AUQ550B
SAS Label:: Had Runny Nose?
English Text:: Have you had runny nose today or yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	182	182
2	No (checkbox unchecked)	44	226
9	Don't know	0	226
.	Missing	2905	3131

AUQ550C - Earache, Right Ear?

Variable Name:: AUQ550C
SAS Label:: Earache, Right Ear?
English Text:: Have you had an earache in right ear today or yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	6	6
2	No (checkbox unchecked)	220	226
9	Don't know	0	226
.	Missing	2905	3131

AUQ550D - Earache, Left Ear?

Variable Name:: AUQ550D
SAS Label:: Earache, Left Ear?
English Text:: Have you had an earache in left ear today or yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	8	8
2	No (checkbox unchecked)	218	226
9	Don't know	0	226
.	Missing	2905	3131

AUQ550E - Earache, Both Ears?

Variable Name:: AUQ550E
SAS Label:: Earache, Both Ears?
English Text:: Have you had an earache in both ears today or yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	2	2
2	No (checkbox unchecked)	224	226
9	Don't know	0	226
.	Missing	2905	3131

AUQ560 - Listened to Loud Sound Today?

Variable Name:: AUQ560
SAS Label:: Listened to Loud Sound Today?
English Text:: Have you listened to sounds today that were so loud you would have to shout so someone close by could hear you?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	56	56
2	No	906	962
7	Refused	2	964
9	Don't know	8	972
.	Missing	2159	3131

AUQ570 - Listened to Loud Sound Yesterday?

Variable Name:: AUQ570
SAS Label:: Listened to Loud Sound Yesterday?
English Text:: Did you listen to any sounds that were that loud yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	50	50
2	No	857	907
7	Refused	0	907
9	Don't know	12	919
.	Missing	2212	3131

AUQ580 - Hours Since Loud Sound Ended?

Variable Name:: AUQ580
SAS Label:: Hours Since Loud Sound Ended?
English Text:: When was that?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1 to 23	Range of Values	96	96
77	Refused	0	96
99	Don't know	10	106
.	Missing	3025	3131

AUQ590 - Listened to Music with Earphones Today?

Variable Name:: AUQ590
SAS Label:: Listened to Music with Earphones Today?
English Text:: Have you listened to music with earphones today?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	100	100
2	No	874	974
7	Refused	0	974
9	Don't know	2	976
.	Missing	2155	3131

AUQ600 - Listened to Music w/Earphones Yesterday?

Variable Name:: AUQ600
SAS Label:: Listened to Music w/Earphones Yesterday?
English Text:: Did you listen to music with earphones yesterday?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	91	91
2	No	780	871
7	Refused	0	871
9	Don't know	4	875
.	Missing	2256	3131

AUQ610 - Hours Since Stopped Listening?

Variable Name:: AUQ610
SAS Label:: Hours Since Stopped Listening?
English Text:: When was that?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1 to 24	Range of Values	177	177
77	Refused	0	177
99	Don't know	14	191
.	Missing	2940	3131

AUQ051 - Self Reported Better Ear

Variable Name:: AUQ051
SAS Label:: Self Reported Better Ear
English Text:: Is it easier for you to hear out of one ear than the other?
Target:: Both males and females 6 YEARS - 11 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes, right ear	59	59
2	Yes, left ear	41	100
7	Refused	0	100
9	No / don't know	876	976
.	Missing	2155	3131

AUQ010 - Have Ear Tube, Right or Left Ear?

Variable Name:: AUQ010
SAS Label:: Have Ear Tube, Right or Left Ear?
English Text:: Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s))
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes, right ear	4	4
2	Yes, left ear	2	6
3	Yes, both ears	1	7
4	No	1952	1959
7	Refused	1	1960
9	Don't know	14	1974
.	Missing	1157	3131

AUQ020 - Had Cold, Sinus or Earache Last 24 Hrs?

Variable Name:: AUQ020
SAS Label:: Had Cold, Sinus or Earache Last 24 Hrs?
English Text:: Have you had a cold, sinus problem, or earache in the last 24 hours?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	184	184
2	No	1785	1969
7	Refused	2	1971
9	Don't know	3	1974
.	Missing	1157	3131

AUQ020A - Had Cold Last 24 Hrs?

Variable Name:: AUQ020A
SAS Label:: Had Cold Last 24 Hrs?
English Text:: Have you had a cold in the last 24 hours?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	59	59
2	No (checkbox unchecked)	125	184
9	Don't know	0	184
.	Missing	2947	3131

AUQ020B - Had Sinus Problem Last 24 Hours?

Variable Name:: AUQ020B
SAS Label:: Had Sinus Problem Last 24 Hours?
English Text:: Have you had a sinus problem in the last 24 hours?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	121	121
2	No (checkbox unchecked)	63	184
9	Don't know	0	184
.	Missing	2947	3131

AUQ020C - Earache Last 24 Hours, Right?

Variable Name:: AUQ020C
SAS Label:: Earache Last 24 Hours, Right?
English Text:: Have you had an earache in the right ear in the last 24 hours?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	6	6
2	No (checkbox unchecked)	178	184
9	Don't know	0	184
.	Missing	2947	3131

AUQ020D - Earache Last 24 Hours, Left?

Variable Name:: AUQ020D
SAS Label:: Earache Last 24 Hours, Left?
English Text:: Have you had an earache in left ear in the last 24 hours?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	9	9
2	No (checkbox unchecked)	175	184
9	Don't know	0	184
.	Missing	2947	3131

AUQ020E - Earache Last 24 Hours, Both?

Variable Name:: AUQ020E
SAS Label:: Earache Last 24 Hours, Both?
English Text:: Have you had an earache in both ears in the last 24 hours?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	2	2
2	No (checkbox unchecked)	182	184
9	Don't know	0	184
.	Missing	2947	3131

AUQ031 - Exposed to Loud Noise Last 24 Hrs?

Variable Name:: AUQ031
SAS Label:: Exposed to Loud Noise Last 24 Hrs?
English Text:: In the past 24 hours, have you been exposed to noise so loud that you would have had to raise your voice to speak to someone an arm's length away?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	144	144
2	No	1829	1973
7	Refused	0	1973
9	Don't know	1	1974
.	Missing	1157	3131

AUQ041 - Hours Since Noise Ended?

Variable Name:: AUQ041
SAS Label:: Hours Since Noise Ended?
English Text:: How many hours ago did the noise end?
Target:: Both males and females 12 YEARS - 19 YEARS
Hard Edits:: 1 to 24

Code or Value	Value Description	Count	Cumulative
1 to 24	Range of Values	143	143
77	SP refused	0	143
99	Don't know	1	144
.	Missing	2987	3131

AUQ520 - Listened to Music w/Earphone Last 24 Hrs

Variable Name:: AUQ520
SAS Label:: Listened to Music w/Earphone Last 24 Hrs
English Text:: In the past 24 hours, have you listened to music with earphones?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	560	560
2	No	1412	1972
7	Refused	0	1972
9	Don't know	2	1974
.	Missing	1157	3131

AUQ530 - Hours Since Music Ended?

Variable Name:: AUQ530
SAS Label:: Hours Since Music Ended?
English Text:: How many hours ago did you stop listening?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1 to 24	Range of Values	555	555
77	Refused	0	555
99	Don't know	5	560
.	Missing	2571	3131

AUQ050 - Self Reported Better Ear

Variable Name:: AUQ050
SAS Label:: Self Reported Better Ear
English Text:: Do you hear better in one ear than the other?
Target:: Both males and females 12 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes, right ear	218	218
2	Yes, left ear	187	405
7	Refused	1	406
9	No / don't know	1568	1974
.	Missing	1157	3131

AUXOTSPL - Normal Otoscopy, Left Ear?

Variable Name:: AUXOTSPL
SAS Label:: Normal Otoscopy, Left Ear?
English Text:: Normal: Left Ear Otoscopy
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	2382	2382
2	No (checkbox unchecked)	568	2950
.	Missing	181	3131

AUXLOEXC - Excessive Cerumen, Left Ear

Variable Name:: AUXLOEXC
SAS Label:: Excessive Cerumen, Left Ear
English Text:: Excessive Cerumen, Left Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	532	532
2	No (checkbox unchecked)	2418	2950
.	Missing	181	3131

AUXLOIMC - Impacted Cerumen, Left Ear

Variable Name:: AUXLOIMC
SAS Label:: Impacted Cerumen, Left Ear
English Text:: Impacted Cerumen, Left Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	29	29
2	No (checkbox unchecked)	2921	2950
.	Missing	181	3131

AUXLOCOL - Collapsing Ear Canals, Left Ear

Variable Name:: AUXLOCOL
SAS Label:: Collapsing Ear Canals, Left Ear
English Text:: Collapsing Ear Canal, Left Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	3	3
2	No (checkbox unchecked)	2947	2950
.	Missing	181	3131

AUXLOABN - Other Exam Abnormality, Left Ear?

Variable Name:: AUXLOABN
SAS Label:: Other Exam Abnormality, Left Ear?
English Text:: Other Exam Abnormality, Left Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	6	6
2	No (checkbox unchecked)	2944	2950
.	Missing	181	3131

AUDLOABC - Comment,Other Exam Abnormality Left Ear

Variable Name:: AUDLOABC
SAS Label:: Comment,Other Exam Abnormality Left Ear
English Text:: Other Exam Abnormality, Left, Comment
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Possible Perforated Eardrum	3	3
3	Possible Infection	0	3
4	TM Scarring or Deformity	0	3
5	Possible Ear Canal Abrasion	1	4
6	Growth or Foreign Body in Ear Canal	1	5
7	Deformity of Auricle	0	5
8	Other	1	6
9	Could not Visualize Eardrum	0	6
.	Missing	3125	3131

AUXROTSP - Normal Otoscopy, Right Ear?

Variable Name:: AUXROTSP
SAS Label:: Normal Otoscopy, Right Ear?
English Text:: Normal: Right Ear Otoscopy
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	2371	2371
2	No (checkbox unchecked)	579	2950
.	Missing	181	3131

AUXROEXC - Excessive Cerumen, Right Ear

Variable Name:: AUXROEXC
SAS Label:: Excessive Cerumen, Right Ear
English Text:: Excessive Cerumen, Right Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	543	543
2	No (checkbox unchecked)	2407	2950
.	Missing	181	3131

AUXROIMC - Impacted Cerumen, Right Ear

Variable Name:: AUXROIMC
SAS Label:: Impacted Cerumen, Right Ear
English Text:: Impacted Cerumen, Right Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	30	30
2	No (checkbox unchecked)	2920	2950
.	Missing	181	3131

AUXROCOL - Collapsing Ear Canals, Right Ear

Variable Name:: AUXROCOL
SAS Label:: Collapsing Ear Canals, Right Ear
English Text:: Collapsing Ear Canal, Right Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	4	4
2	No (checkbox unchecked)	2946	2950
.	Missing	181	3131

AUXROABN - Other Exam Abnormality, Right Ear?

Variable Name:: AUXROABN
SAS Label:: Other Exam Abnormality, Right Ear?
English Text:: Other Exam Abnormality, Right Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes (checkbox checked)	6	6
2	No (checkbox unchecked)	2944	2950
.	Missing	181	3131

AUDROABC - Comment,Other Exam Abnormality Right Ear

Variable Name:: AUDROABC
SAS Label:: Comment,Other Exam Abnormality Right Ear
English Text:: Other Exam Abnormality, Right, Comment
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Possible Perforated Eardrum	2	2
3	Possible Infection	0	2
4	TM Scarring or Deformity	0	2
5	Possible Ear Canal Abrasion	0	2
6	Growth or Foreign Body in Ear Canal	1	3
7	Deformity of Auricle	0	3
8	Other	2	5
9	Could not Visualize Eardrum	1	6
.	Missing	3125	3131

AUXTMEPR - Middle Ear Pressure-Tymp, Rt Ear in daPa

Variable Name:: AUXTMEPR
SAS Label:: Middle Ear Pressure-Tymp, Rt Ear in daPa
English Text:: Middle ear pressure (tympanometry), right ear, in daPa (dekaPascals)
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: -400.0000 to 200.0000

Code or Value	Value Description	Count	Cumulative	Skip to Item
-299 to 199	Range of Values	2654	2654
.	Missing	477	3131

AUXTPVR - Physical Volume-Tymp, Right Ear in cc

Variable Name:: AUXTPVR
SAS Label:: Physical Volume-Tymp, Right Ear in cc
English Text:: Physical volume (tympanometry), right ear, in cc
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: 0.0 to 7.0

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.214 to 6.478	Range of Values	2782	2782
.	Missing	349	3131

AUXTWIDR - Tympanometric width, right ear

Variable Name:: AUXTWIDR
SAS Label:: Tympanometric width, right ear
English Text:: Tympanometric width, right ear
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: 0.0000 to 500.0000

Code or Value	Value Description	Count	Cumulative	Skip to Item
1 to 444	Range of Values	2655	2655
.	Missing	476	3131

AUXTCOMR - Compliance (tympanometry), right ear

Variable Name:: AUXTCOMR
SAS Label:: Compliance (tympanometry), right ear
English Text:: Compliance (tympanometry), right ear
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: 0.0000 to 8.0000

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.15 to 6.233	Range of Values	2656	2656
.	Missing	475	3131

AUXTMEPL - Middle Ear Pressure, Tymp, Left in daPa

Variable Name:: AUXTMEPL
SAS Label:: Middle Ear Pressure, Tymp, Left in daPa
English Text:: Middle ear pressure (tympanometry), left ear, in daPa (dekaPascals)
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: -400.0000 to 200.0000

Code or Value	Value Description	Count	Cumulative	Skip to Item
-299 to 173	Range of Values	2661	2661
.	Missing	470	3131

AUXTPVL - Physical Volume-Tymp, Left ear in cc

Variable Name:: AUXTPVL
SAS Label:: Physical Volume-Tymp, Left ear in cc
English Text:: Physical volume (tympanometry), left ear, in cc
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: 0.0 to 7.0

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.09 to 5.234	Range of Values	2778	2778
.	Missing	353	3131

AUXTWIDL - Tympanometric width, left ear

Variable Name:: AUXTWIDL
SAS Label:: Tympanometric width, left ear
English Text:: Tympanometric width, left ear
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: 0.0000 to 500.0000

Code or Value	Value Description	Count	Cumulative	Skip to Item
17 to 435	Range of Values	2662	2662
.	Missing	469	3131

AUXTCOML - Compliance (tympanometry), left ear

Variable Name:: AUXTCOML
SAS Label:: Compliance (tympanometry), left ear
English Text:: Compliance (tympanometry), left ear
Target:: Both males and females 6 YEARS - 19 YEARS
Hard Edits:: 0.0000 to 8.0000

Code or Value	Value Description	Count	Cumulative	Skip to Item
0.15 to 5.793	Range of Values	2664	2664
.	Missing	467	3131

AUAEAR - Which ear tested first?

Variable Name:: AUAEAR
SAS Label:: Which ear tested first?
English Text:: Which ear tested first?
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Right	1464	1464
2	Left	1462	2926
.	Missing	205	3131

AUAMODE - Audio Test Mode-Manual/Automatic/Mixed

Variable Name:: AUAMODE
SAS Label:: Audio Test Mode-Manual/Automatic/Mixed
English Text:: Mode of Audiometric Test (Manual/Automatic/Mixed)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Manual	502	502
2	Automatic	2110	2612
3	Mixed	309	2921
.	Missing	210	3131

AUAFMANL - Frequency, Switch to Manual Mode, Left

Variable Name:: AUAFMANL
SAS Label:: Frequency, Switch to Manual Mode, Left
English Text:: Frequency at Which Switched From Auto to Manual Audio Testing (Left)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	None	2749	2749
2	500 Hz	6	2755
3	1000 Hz	25	2780
4	2000 Hz	17	2797
5	3000 Hz	5	2802
6	4000 Hz	12	2814
7	6000 Hz	25	2839
8	8000 Hz	82	2921
.	Missing	210	3131

AUAFMANR - Frequency, Switch to Manual Mode, Right

Variable Name:: AUAFMANR
SAS Label:: Frequency, Switch to Manual Mode, Right
English Text:: Frequency at Which Switched From Auto to Manual Audio Testing (Right)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	None	2770	2770
2	500 Hz	9	2779
3	1000 Hz	24	2803
4	2000 Hz	10	2813
5	3000 Hz	15	2828
6	4000 Hz	10	2838
7	6000 Hz	23	2861
8	8000 Hz	60	2921
.	Missing	210	3131

AUXU1K1R - Right threshold @ 1000Hz (db)

Variable Name:: AUXU1K1R
SAS Label:: Right threshold @ 1000Hz (db)
English Text:: Right threshold @ 1000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 105	Range of Values	2781	2781
666	No response	0	2781
888	Could not obtain	101	2882
.	Missing	249	3131

AUXU500R - Right threshold @ 500Hz (db)

Variable Name:: AUXU500R
SAS Label:: Right threshold @ 500Hz (db)
English Text:: Right threshold @ 500Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 105	Range of Values	2613	2613
666	No response	1	2614
888	Could not obtain	264	2878
.	Missing	253	3131

AUXU1K2R - Right Threshold @ 1000Hz-2nd Read (db)

Variable Name:: AUXU1K2R
SAS Label:: Right Threshold @ 1000Hz-2nd Read (db)
English Text:: Right threshold @ 1000Hz (second reading) in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 105	Range of Values	2781	2781
666	No response	0	2781
888	Could not obtain	101	2882
.	Missing	249	3131

AUXU2KR - Right threshold @ 2000Hz (db)

Variable Name:: AUXU2KR
SAS Label:: Right threshold @ 2000Hz (db)
English Text:: Right threshold @ 2000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 110	Range of Values	2773	2773
666	No response	4	2777
888	Could not obtain	104	2881
.	Missing	250	3131

AUXU3KR - Right threshold @ 3000Hz (db)

Variable Name:: AUXU3KR
SAS Label:: Right threshold @ 3000Hz (db)
English Text:: Right threshold @ 3000Hz in decibels (Hearing Levels)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 105	Range of Values	2585	2585
666	No response	10	2595
888	Could not obtain	280	2875
.	Missing	256	3131

AUXU4KR - Right threshold @ 4000Hz (db)

Variable Name:: AUXU4KR
SAS Label:: Right threshold @ 4000Hz (db)
English Text:: Right threshold @ 4000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 110	Range of Values	2739	2739
666	No response	22	2761
888	Could not obtain	119	2880
.	Missing	251	3131

AUXU6KR - Right threshold @ 6000Hz (db)

Variable Name:: AUXU6KR
SAS Label:: Right threshold @ 6000Hz (db)
English Text:: Right threshold @ 6000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 100	Range of Values	2539	2539
666	No response	50	2589
888	Could not obtain	283	2872
.	Missing	259	3131

AUXU8KR - Right threshold @ 8000Hz (db)

Variable Name:: AUXU8KR
SAS Label:: Right threshold @ 8000Hz (db)
English Text:: Right threshold @ 8000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 95	Range of Values	2582	2582
666	No response	162	2744
888	Could not obtain	133	2877
.	Missing	254	3131

AUXU1K1L - Left threshold @ 1000Hz (db)

Variable Name:: AUXU1K1L
SAS Label:: Left threshold @ 1000Hz (db)
English Text:: Left threshold @ 1000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 100	Range of Values	2770	2770
666	No response	2	2772
888	Could not obtain	108	2880
.	Missing	251	3131

AUXU500L - Left threshold @ 500Hz (db)

Variable Name:: AUXU500L
SAS Label:: Left threshold @ 500Hz (db)
English Text:: Left threshold @ 500Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 105	Range of Values	2608	2608
666	No response	2	2610
888	Could not obtain	267	2877
.	Missing	254	3131

AUXU1K2L - Left threshold @ 1000Hz-2nd Read (db)

Variable Name:: AUXU1K2L
SAS Label:: Left threshold @ 1000Hz-2nd Read (db)
English Text:: Left threshold @ 1000Hz (second reading) in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 100	Range of Values	2770	2770
666	No response	2	2772
888	Could not obtain	108	2880
.	Missing	251	3131

AUXU2KL - Left threshold @ 2000Hz (db)

Variable Name:: AUXU2KL
SAS Label:: Left threshold @ 2000Hz (db)
English Text:: Left threshold @ 2000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 105	Range of Values	2760	2760
666	No response	5	2765
888	Could not obtain	114	2879
.	Missing	252	3131

AUXU3KL - Left threshold @ 3000Hz (db)

Variable Name:: AUXU3KL
SAS Label:: Left threshold @ 3000Hz (db)
English Text:: Left threshold @ 3000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 110	Range of Values	2578	2578
666	No response	16	2594
888	Could not obtain	283	2877
.	Missing	254	3131

AUXU4KL - Left threshold @ 4000Hz (db)

Variable Name:: AUXU4KL
SAS Label:: Left threshold @ 4000Hz (db)
English Text:: Left threshold @ 4000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 110	Range of Values	2730	2730
666	No response	25	2755
888	Could not obtain	124	2879
.	Missing	252	3131

AUXU6KL - Left threshold @ 6000Hz (db)

Variable Name:: AUXU6KL
SAS Label:: Left threshold @ 6000Hz (db)
English Text:: Left threshold @ 6000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 105	Range of Values	2541	2541
666	No response	50	2591
888	Could not obtain	286	2877
.	Missing	254	3131

AUXU8KL - Left threshold @ 8000Hz (db)

Variable Name:: AUXU8KL
SAS Label:: Left threshold @ 8000Hz (db)
English Text:: Left threshold @ 8000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
-10 to 95	Range of Values	2590	2590
666	No response	149	2739
888	Could not obtain	138	2877
.	Missing	254	3131

AUXR1K1R - Right retest threshold @ 1000Hz (db)

Variable Name:: AUXR1K1R
SAS Label:: Right retest threshold @ 1000Hz (db)
English Text:: Right retest threshold @ 1000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
10 to 100	Range of Values	19	19
666	No response	0	19
888	Could not obtain	1	20
.	Missing	3111	3131

AUXR5CR - Right retest threshold @ 500Hz (db)

Variable Name:: AUXR5CR
SAS Label:: Right retest threshold @ 500Hz (db)
English Text:: Right retest threshold @ 500Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
5 to 105	Range of Values	21	21
666	No response	0	21
888	Could not obtain	1	22
.	Missing	3109	3131

AUXR1K2R - Right Retest Threshold 1000Hz-2nd Read

Variable Name:: AUXR1K2R
SAS Label:: Right Retest Threshold 1000Hz-2nd Read
English Text:: Right retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
30 to 90	Range of Values	2	2
666	No response	0	2
888	Could not obtain	0	2
.	Missing	3129	3131

AUXR2KR - Right retest threshold @ 2000Hz (db)

Variable Name:: AUXR2KR
SAS Label:: Right retest threshold @ 2000Hz (db)
English Text:: Right retest threshold @ 2000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
25 to 100	Range of Values	11	11
666	No response	0	11
888	Could not obtain	1	12
.	Missing	3119	3131

AUXR3KR - Right retest threshold @ 3000Hz (db)

Variable Name:: AUXR3KR
SAS Label:: Right retest threshold @ 3000Hz (db)
English Text:: Right retest threshold @ 3000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
45 to 90	Range of Values	6	6
666	No response	1	7
888	Could not obtain	1	8
.	Missing	3123	3131

AUXR4KR - Right retest threshold @ 4000Hz (db)

Variable Name:: AUXR4KR
SAS Label:: Right retest threshold @ 4000Hz (db)
English Text:: Right retest threshold @ 4000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
45 to 100	Range of Values	8	8
666	No response	1	9
888	Could not obtain	1	10
.	Missing	3121	3131

AUXR6KR - Right retest threshold @ 6000Hz (db)

Variable Name:: AUXR6KR
SAS Label:: Right retest threshold @ 6000Hz (db)
English Text:: Right retest threshold @ 6000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
50 to 90	Range of Values	7	7
666	No response	2	9
888	Could not obtain	1	10
.	Missing	3121	3131

AUXR8KR - Right retest threshold @ 8000Hz (db)

Variable Name:: AUXR8KR
SAS Label:: Right retest threshold @ 8000Hz (db)
English Text:: Right retest threshold @ 8000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
45 to 80	Range of Values	4	4
666	No response	1	5
888	Could not obtain	1	6
.	Missing	3125	3131

AUXR1K1L - Left retest threshold @ 1000Hz (db)

Variable Name:: AUXR1K1L
SAS Label:: Left retest threshold @ 1000Hz (db)
English Text:: Left retest threshold @ 1000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
30 to 95	Range of Values	20	20
666	No response	0	20
888	Could not obtain	0	20
.	Missing	3111	3131

AUXR5CL - Left retest threshold @ 500Hz (db)

Variable Name:: AUXR5CL
SAS Label:: Left retest threshold @ 500Hz (db)
English Text:: Left retest threshold @ 500Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
25 to 105	Range of Values	16	16
666	No response	0	16
888	Could not obtain	0	16
.	Missing	3115	3131

AUXR1K2L - Left Retest Threshold 1000Hz-2nd Read

Variable Name:: AUXR1K2L
SAS Label:: Left Retest Threshold 1000Hz-2nd Read
English Text:: Left retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
30 to 75	Range of Values	2	2
666	No response	0	2
888	Could not obtain	0	2
.	Missing	3129	3131

AUXR2KL - Left retest threshold @ 2000Hz (db)

Variable Name:: AUXR2KL
SAS Label:: Left retest threshold @ 2000Hz (db)
English Text:: Left retest threshold @ 2000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
35 to 95	Range of Values	7	7
666	No response	2	9
888	Could not obtain	0	9
.	Missing	3122	3131

AUXR3KL - Left retest threshold @ 3000Hz (db)

Variable Name:: AUXR3KL
SAS Label:: Left retest threshold @ 3000Hz (db)
English Text:: Left retest threshold @ 3000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
50 to 105	Range of Values	6	6
666	No response	0	6
888	Could not obtain	0	6
.	Missing	3125	3131

AUXR4KL - Left retest threshold @ 4000Hz (db)

Variable Name:: AUXR4KL
SAS Label:: Left retest threshold @ 4000Hz (db)
English Text:: Left retest threshold @ 4000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
45 to 100	Range of Values	5	5
666	No response	0	5
888	Could not obtain	0	5
.	Missing	3126	3131

AUXR6KL - Left retest threshold @ 6000Hz (db)

Variable Name:: AUXR6KL
SAS Label:: Left retest threshold @ 6000Hz (db)
English Text:: Left retest threshold @ 6000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
40 to 95	Range of Values	6	6
666	No response	1	7
888	Could not obtain	0	7
.	Missing	3124	3131

AUXR8KL - Left retest threshold @ 8000Hz (db)

Variable Name:: AUXR8KL
SAS Label:: Left retest threshold @ 8000Hz (db)
English Text:: Left retest threshold @ 8000Hz in decibels (Hearing Level)
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
45 to 80	Range of Values	9	9
666	No response	1	10
888	Could not obtain	1	11
.	Missing	3120	3131

AUAREQC - Right Ear Tympanogram Quality Code

Variable Name:: AUAREQC
SAS Label:: Right Ear Tympanogram Quality Code
English Text:: Quality Code for Tympanogram of Right Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Good - tympanogram is smooth and symmetrical	2298	2298
2	Adequate - tympanogram is 'noisy' but adequate for interpretation	438	2736
3	Poor - tympanogram cannot be interpreted	49	2785
7	SP Refused Tympanometry	0	2785
8	Could not obtain	116	2901
9	Equivocal - tympanogram cannot be evaluated without further information	12	2913
.	Missing	218	3131

AUATYMTR - Tympanogram Type, Right Ear

Variable Name:: AUATYMTR
SAS Label:: Tympanogram Type, Right Ear
English Text:: Tympanogram Type, Right Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
Type A	Normal	2487	2487
Type AS	Normal, but the ear drum is unusually stiff	120	2607
Type AD	Normal, but the ear drum is unusually flaccid	21	2628
Type B	Flat, no measurable ear drum mobility	29	2657
Type C	Normal ear drum mobility, but negative middle ear pressure	81	2738
88888	Could not obtain	116	2854
99999	Could not interpret	59	2913
< blank >	Missing	218	3131

AUALEQC - Left Ear Tympanogram Quality Code

Variable Name:: AUALEQC
SAS Label:: Left Ear Tympanogram Quality Code
English Text:: Quality Code for Tympanogram of Left Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
1	Good - tympanogram is smooth and symmetrical	2326	2326
2	Adequate - tympanogram is 'noisy' but adequate for interpretation	402	2728
3	Poor - tympanogram cannot be interpreted	50	2778
7	SP Refused Tympanometry	0	2778
8	Could not obtain	125	2903
9	Equivocal - tympanogram cannot be evaluated without further information	10	2913
.	Missing	218	3131

AUATYMTL - Tympanogram Type, Left Ear

Variable Name:: AUATYMTL
SAS Label:: Tympanogram Type, Left Ear
English Text:: Tympanogram Type, Left Ear
Target:: Both males and females 6 YEARS - 19 YEARS

Code or Value	Value Description	Count	Cumulative
Type A	Normal	2499	2499
Type AS	Normal, but the ear drum is unusually stiff	116	2615
Type AD	Normal, but the ear drum is unusually flaccid	23	2638
Type B	Flat, no measurable ear drum mobility	24	2662
Type C	Normal ear drum mobility, but negative middle ear pressure	68	2730
88888	Could not obtain	125	2855
99999	Could not interpret	58	2913
< blank >	Missing	218	3131

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