National Health and Nutrition Examination Survey and National Youth Fitness Survey

2012-2012 Data Documentation, Codebook, and Frequencies

NHANES/NNYFS Combined Sample 2012 - Respiratory Health and Disease (C_RDQ)

RDC Only Data File: C_RDQ.xpt

First Published: September 2013

Last Revised: NA

Due to disclosure issues, this dataset is not available publicly. Access may be obtained through the NCHS Research Data Center (https://www.cdc.gov/rdc).

Component Description

The Respiratory Health & Disease section (variable name prefix RDQ) provides combined 2012 NHANES National Youth Fitness Study (NNYFS) and NHANES 2012 participant-level interview data on wheezing; specifically whether within the previous 12 month period, wheezing occurred with exercise, or resulted in limitation of the participant’s usual activities. These questions were asked in the NNYFS and also for NHANES participants aged 3 to 15 years, during the second year of the 2011-2012 NHANES survey cycle.

Eligible Sample

All NNYFS participants and all NHANES 2012 participants ages 3-15 years.

Interview Setting and Mode of Administration

The respiratory health and disease questionnaire was asked in the home, by trained interviewers, using the Computer-Assisted Personal Interviewing (CAPI) system. The questions were asked of all NNYFS survey participants by proxy.

Quality Assurance & Quality Control

The CAPI system is programmed with built-in consistency checks to reduce data entry errors. CAPI also uses online help screens to assist interviewers in defining key terms used in the questionnaire.

Data Processing and Editing

The data were reviewed for completeness, consistency, and illogical values.

Analytic Notes

Please refer to the Analytic Guidelines for details on the use of sample weights and other analytic issues.

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 3 YEARS - 15 YEARS

RDQ100 - Chest sound wheezy during exercise

Variable Name:: RDQ100
SAS Label:: Chest sound wheezy during exercise
English Text:: In the past 12 months, has {your/SP's} chest sounded wheezy during or after exercise or physical activity?
Target:: Both males and females 3 YEARS - 15 YEARS

Code or Value	Value Description	Count	Cumulative
1	Yes	223	223
2	No	2668	2891
7	Refused	0	2891
9	Don't know	2	2893
.	Missing	0	2893

RDQ135 - Amount wheezing limits usual activity

Variable Name:: RDQ135
SAS Label:: Amount wheezing limits usual activity
English Text:: During the past 12 months, how much did {you/SP} limit {your/his/her} usual activities due to wheezing or whistling? Would you say . . .
Target:: Both males and females 3 YEARS - 15 YEARS

Code or Value	Value Description	Count	Cumulative
1	Not at all,	2646	2646
2	A little,	188	2834
3	A fair amount,	25	2859
4	A moderate amount, or	12	2871
5	A lot?	22	2893
7	Refused	0	2893
9	Don't know	0	2893
.	Missing	0	2893

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