PREGDUR_ALL (B20_x) variables are 2-digit numeric variables.
99 = NIU (not in universe)
PREGDUR_ALL (B20_x) reports the duration of the pregnancy (in months) before the child was born, for children born in the three to five years before the survey.
PREGDUR_ALL consists of a set of up to six separate variables, covering the most recent birth (PREGDUR_01) up to the sixth-most-recent birth (PREGDUR_06) for a female respondent of childbearing age. If PREGDUR_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 within a specified number of years before the survey, up to a maximum of six births. In many cases, data were hypothetically collected on up to six births, but no women in the survey had so many births (e.g., no woman had 5 or 6 births within five years). If, for example, no woman in a survey had 6 births in the past five years and only blank values were included in the original DHS file, then PREGDUR_06 would not be available for that survey in IPUMS-DHS.
- Women age 15-49 with at least one birth in the 5 years before the survey.