The “Fertility preferences” come primarily from a single question in the DHS V and DHS VI questionnaires. This is the same question used in the DHS I Model "B" questionnaire, and the DHS II and DHS III Model "A" and "B" questionnaires. However, for DHS I Model "A" questionnaires, this variable was constructed from a series of questions. Women who respond that they want another child, but when asked when they would like the next child, respond that they cannot get pregnant, are classified in the "declared infecund category", and not in the "Wants another" category. These women can be identified in variable V616, where the original response to the question asking how long they would like to wait before having another child is recorded. In some countries, women who had never had sexual intercourse were not asked the questions relating to desire for future children, and are coded 6 on V602.