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KIDBIRTHDAY_ALL (B17_x) variables are 2-digit variables.


99 = NIU (not in universe)


KIDBIRTHDAY_ALL (B17_x) reports the day of the month of the child's birth, according to the Gregorian calendar.

KIDBIRTHDAY_ALL consists of a set of twenty separate variables, covering the most recent birth (KIDBIRTHDAY_01) up to the twentieth-most-recent birth (KIDBIRTHDAY_20) for a female respondent of childbearing age. If KIDBIRTHDAY_ALL is included in a data extract, all these separate variables are included in a researcher's data file.

Information for this variable was collected on all births for a woman, up to a maximum of twenty births. In many cases, data were hypothetically collected on up to twenty births, but no women in the survey had so many births (e.g., no woman had 19 or 20 births). If, for example, no woman in a survey had 20 births and only blank values were included in the original DHS file, then KIDBIRTHDAY_20 would not be available for that survey in IPUMS-DHS.


Apart from universe differences, KIDBIRTHDAY_ALL (B17_x) has no comparability problems.

While all samples in KIDBIRTHDAY_ALL use the Gregorian calendar, certain countries use country-specific calendars. These countries (noted below) are excluded from KIDBIRTHDAY_ALL but are included in country-specific variables.

Comparability - Standard DHS

KIDBIRTHDAY_ALL (B17_x) is included in Phase VII forward of the standard DHS questionnaire.


  • Women age 15-49 with at least one birth.
  • Angola: 2015-W, 2015-W
  • Benin: 2017-W, 2017-W
  • Burundi: 2016-W, 2016-W
  • Cameroon: 2018-W
  • Ethiopia: 2019-W
  • Ghana: 2016-W
  • Guinea: 2018-W, 2018-W
  • Jordan: 2017-W, 2017-W
  • Malawi: 2016-W, 2016-W
  • Mali: 2018-W, 2018-W
  • Nigeria: 2018-W, 2018-W
  • Pakistan: 2017-W, 2017-W
  • Senegal: 2017-W, 2017-W
  • South Africa: 2016-W, 2016-W
  • Tanzania: 2015-W, 2015-W
  • Uganda: 2016-W, 2016-W
  • Zambia: 2018-W, 2018-W
  • Zimbabwe: 2015-W, 2015-W