The Hepatitis questionnaire (variable name prefix HEQ) provides respondent-level interview data on previous diagnosis of Hepatitis B.
All survey participants aged 6 years and older were eligible.
This questionnaire was asked, in the home or by telephone, by trained interviewers, using the Computer-Assisted Personal Interview (CAPI) system.
The NHANES August 2021-August 2023 questionnaire is available on the NHANES website.
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. Interviewers were required to audio-record interviews. The recorded interviews were reviewed by interviewer supervisors and NCHS staff.
Frequency counts were checked, and the reasonableness of question responses was reviewed. Edits were made to ensure the completeness, consistency, and analytic usefulness of the data.
Several questions were dropped in NHANES 2021-2023 and are not included in this data file, including HEQ020, HEQ030, and HEQ040.
The analysis of NHANES August 2021–August 2023 HEQ data must be conducted using the appropriate survey design variables, sample weights, and the basic demographic variables. Although these data were collected as part of the household questionnaire, if they are merged with the MEC exam data, exam sample weights should be used for the analyses.
Please also refer to the NHANES Analytic Guidelines and the on-line NHANES Tutorial for details on the use of sample weights and other analytic issues.
| Code or Value | Value Description | Count | Cumulative | Skip to Item |
|---|---|---|---|---|
| 1 | Yes | 109 | 109 | |
| 2 | No | 10548 | 10657 | |
| 7 | Refused | 1 | 10658 | |
| 9 | Don't know | 34 | 10692 | |
| . | Missing | 4 | 10696 |