Table of Contents

Component Description

The Immunization section (prefix IMQ; questions IMQ.010 to IMQ.030) provides sample person interview data on immunization with the hepatitis A and hepatitis B vaccine for participants age 2 and above. The number of doses received is also obtained since both vaccines are multi-dose. For minors, the questions were answered via a proxy respondent, generally a parent or guardian. Individuals age 20 or more years are asked if they ever had the pneumococcal vaccine.

Eligible Sample

All survey participants 2 years of age and older are asked about hepatitis A and B vaccination. All survey participants 20 years of age and older are asked about pneumococcal vaccination.

Interview Setting and Mode of Administration

Household questionnaire -- In-person.

The Interviewer Procedure Manuals and Survey Questionnaires and Exam Manuals can be found on the NHANES website.

Quality Assurance & Quality Control

No component specific quality control.

Data Processing and Editing

A subject’s questionnaire interview responses were entered into a laptop computer and then uploaded to the NHANES computerized database in the same manner as other sections of the Sample Person Questionnaire. The data were edited for completeness, consistency, and illogical values.

Analytic Notes

IMQ questionnaire data was collected on a full sample of respondents and can be analyzed in conjunction with results from MEC laboratory data, which has measures of hepatitis A antibody (on those age 6 or more years, LBXHA) and hepatitis B surface antibody (on those age 2 or more years, LBXHBS). Antibody to Pneumococcal pneumonia was not measured during the survey. Analysts should review all NHANES laboratory 2 (Hepatitis Laboratory) data release documentation and statistical and analytic guidelines prior to beginning data analysis.

Although these data were collected as part of the household questionnaire, if they are merged with the MEC exam data, exam weights should be used for future analyses.

Please refer to the Analytic Guidelines for further details on the use of sample weights and other analytic issues at https://wwwn.cdc.gov/nchs/nhanes/analyticguidelines.aspx.

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 0 YEARS - 150 YEARS

IMD010 - Received hepatitis A vaccine

Variable Name:
IMD010
SAS Label:
Received hepatitis A vaccine
English Text:
{Have you/Has SP} ever received hepatitis A vaccine? This vaccine is given as a two dose series routinely to some children older than 2 years, and to some adults and people who travel outside the United States. It has only been available since 1995.
English Instructions:
CODE 'LESS THAN 2 DOSES' ONLY IF MENTIONED BY RESPONDENT
Target:
Both males and females 2 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes, at least 2 doses 1520 1520
2 Less than 2 doses 320 1840
3 No doses 6678 8518
7 Refused 1 8519
9 Don't know 785 9304
. Missing 818 10122

IMQ020 - Received hepatitis B 3 dose series

Variable Name:
IMQ020
SAS Label:
Received hepatitis B 3 dose series
English Text:
{Have you/Has SP} ever received the 3-dose series of the hepatitis B vaccine? This vaccine is given in three separate doses and has been recommended for all newborn infants since 1991. In 1995, it was recommended that adolescents be given the vaccine. Persons who may be exposed to other people's blood, such as health care workers, also may have received the vaccine.
English Instructions:
CODE 'LESS THAN 3 DOSES' ONLY IF MENTIONED BY RESPONDENT
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes all 3 doses 4533 4533
2 Less than 3 doses 671 5204
3 No doses 4133 9337
7 Refused 3 9340
9 Don't know 782 10122
. Missing 0 10122

IMQ030 - Had pneumonia vaccination

Variable Name:
IMQ030
SAS Label:
Had pneumonia vaccination
English Text:
{Have you/Has SP} ever had a pneumonia vaccination? This shot is usually given only once in a person's lifetime and is different from a flu shot.
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1127 1127
2 No 3687 4814
7 Refused 0 4814
9 Don't know 226 5040
. Missing 5082 10122