Table of Contents

Component Description

The Respiratory Health & Disease section (variable name prefix RDQ) provides participant-level interview data on wheezing; specifically whether within the previous 12 month period, wheezing occurred with exercise, or resulted in a limitation of the participant’s usual activities.

Eligible Sample

All NHANES National Youth Fitness Survey 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 NNYFS 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 Skip to Item
1 Yes 140 140
2 No 1500 1640
7 Refused 0 1640
9 Don't know 0 1640
. Missing 0 1640

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 Skip to Item
1 Not at all, 1506 1506
2 A little, 100 1606
3 A fair amount, 13 1619
4 A moderate amount, or 9 1628
5 A lot? 12 1640
7 Refused 0 1640
9 Don't know 0 1640
. Missing 0 1640