Table of Contents

Component Description

The physical functioning questionnaire (variable name prefix PFQ), made available through the Research Data Center (RDC), provides participant-level interview data on functional limitations caused by long-term physical, mental, and emotional problems or illness. It can be used to assess an individual’s level of disability. The questions were asked in the NHANES National Youth Fitness Study (NNYFS) and of NHANES participants aged 3 to 15 years, during the second year of the 2011-2012 NHANES cycle.

Eligible Sample

All survey participants aged 3 to 15 years were eligible.

Interview Setting and Mode of Administration

The questions were asked in the home, using the Computer-Assisted Personal Interviewing (CAPI) (interviewer administered) system.

A proxy provided information for all survey participants.

Data Processing and Editing

The data were reviewed for completeness, consistency, and illogical values.  Due to concerns about confidentiality, detailed information on special equipment used by the participants (i.e., question PFQ037) was not released in the public dataset, but is available through the NCHS Research Data Center.

Data Processing and Editing

Please refer to the Analytic Guidelines for further 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

PFQ020 - Crawl, walk, run, play limitations

Variable Name:
PFQ020
SAS Label:
Crawl, walk, run, play limitations
English Text:
{Do you/Does SP} have an impairment or health problem that limits {your/his/her} ability to {walk, run or play} {walk or run}?
English Instructions:
CAPI INSTRUCTION: IF CHILD'S AGE = 3-15, DISPLAY "WALK, RUN OR PLAY". IF SP'S AGE = 16-19, DISPLAY "WALK OR RUN".
Target:
Both males and females 3 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 124 124
2 No 2768 2892 PFQ033
7 Refused 0 2892 PFQ033
9 Don't know 1 2893 PFQ033
. Missing 0 2893

PFQ030 - Long term impairment/health problem

Variable Name:
PFQ030
SAS Label:
Long term impairment/health problem
English Text:
Is this an impairment or health problem that has lasted, or is expected to last 12 months or longer?
Target:
Both males and females 3 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 95 95
2 No 23 118
7 Refused 0 118
9 Don't know 6 124
. Missing 2769 2893

PFQ033 - Impairment requiring special equipment

Variable Name:
PFQ033
SAS Label:
Impairment requiring special equipment
English Text:
{Do you/Does SP} have any impairment or health problem that requires {you/him/her} to use special equipment, such as a brace, a wheelchair, or a hearing aid (excluding ordinary eyeglasses or corrective shoes)?
Target:
Both males and females 3 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 20 20
2 No 1659 1679 PFQ041
7 Refused 0 1679 PFQ041
9 Don't know 0 1679 PFQ041
. Missing 1214 2893

PFQ037 - What special equipment do you use?

Variable Name:
PFQ037
SAS Label:
What special equipment do you use?
English Text:
What special equipment {do you/does he/does she} use?
Target:
Both males and females 3 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Brace 6 6
2 Wheelchair 6 12
3 Hearing aid 3 15
4 Other (specify) 5 20
7 Refused 0 20
9 Don't know 0 20
. Missing 2873 2893

PFQ041 - Receive Special Ed or Early Intervention

Variable Name:
PFQ041
SAS Label:
Receive Special Ed or Early Intervention
English Text:
{Do you/Does SP} receive Special Education or Early Intervention Services?
Target:
Both males and females 3 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 311 311
2 No 2581 2892
7 Refused 0 2892
9 Don't know 1 2893
. Missing 0 2893