Definition
BIRTHINTPREMO_ALL (B11_x) reports the preceding birth interval, or the length of time in months until the child was born, after the mother's previous birth (i.e., after the child's next oldest sibling).
Because BIRTHINTPREMO_ALL relates to the child's older sibling, first-born children and twins of first-born children are not included in this variable set.
BIRTHINTPREMO_ALL consists of a set of twenty separate variables, covering the most recent birth (BIRTHINTPREMO_01) up to the twentieth-most-recent birth (BIRTHINTPREMO_20) for a female respondent of childbearing age. If BIRTHINTPREMO_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. 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 BIRTHINTPREMO_20 would not be available for that survey in IPUMS-DHS.