Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
For women who gave birth in the 5 years before the survey, PNBABCK_ALL (M70_x) indicates whether the woman's baby had a postnatal check within 2 months of delivery.
For most surveys, this information on postnatal checks for the child is collected for only the last-born child (PNBABCK_01). For a minority of samples, noted in the Comparability section, the information was collected for all births within the 3 to 5 years before the survey.
To accommodate those surveys that collected this information on multiple births, PNBABCK_ALL consists of a set of six separate variables, covering the most recent birth (PNBABCK_01) up to the sixth-most-recent birth (i.e., PNBABCK_02, PNBABCK_03, PNBABCK_04, PNBABCK_05, and PNBABCK_06) during the reference period prior to the survey. If PNBABCK_ALL is included in a data extract, all these separate variables--when available--are included in a researcher's data file.
In some 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 4 or more births in 3 years, or had 5 or 6 births in 5 years). If, in a survey that collected this information for more than the most recent birth, no woman had 6 births in five years and only blank values were included in the original DHS file, then PNBABCK_06 would not be available for that survey in IPUMS-DHS.