DHS surveys collect primary data using four types of Model Questionnaires. A Household Questionnaire is used to collect information on characteristics of the household's dwelling unit and characteristics of usual residents and visitors. It is also used to identify members of the household who are eligible for an individual interview. Eligible respondents are then interviewed using an Individual Woman's or Man's Questionnaire. The Biomarker Questionnaire is used to collect biomarker data on children, women, and men. For special information on topics that are not contained in the Model Questionnaires, optional Questionnaire Modules are available. Interviews are conducted only if the respondent provides voluntary informed consent.
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Most country surveys collect information on basic demographic and health topics. The Model Questionnaires of the DHS Program emphasize basic indicators and flexibility. In a majority of DHS surveys, people eligible for individual interview include women of reproductive age (15-49) and men age 15-49, 15-54, or 15-59. Individual questionnaires include information on fertility, mortality, family planning, marriage, reproductive health, child health, nutrition, and HIV/AIDS.
Some countries have a need for special information on topics that are not contained in the Model Questionnaires. To accommodate this need, and to achieve some level of comparability across countries that have a need to collect such data, optional Questionnaire Modules address various additional topics.
In addition, country-specific questions are typically added to meet local conditions and needs. The questionnaires used in one country, while containing essentially the same information, may be different in many ways from those used in another country. It is also important to understand that the Model Questionnaires change over time. The Model Questionnaires and questionnaire modules have changed with each DHS phase, and the current DHS-7 questionnaires have changed substantially from those used in the first phase of DHS conducted in the 1980's.
The Household Questionnaire contains information on the following topics:
The Woman's Questionnaire contains information on the following topics:
The Man’s Questionnaire is similar to but shorter than the Woman’s Questionnaire. It collects information on the following topics:
Biomarker Questionnaire Topics
The Biomarker Questionnaire contains information on the following topics:
Optional modules are available on a variety of topics. Many original modules have been incorporated into the Core Questionnaire.
Current modules include:
Modules from previous phases include: