Definition
For women who gave birth in the last three to five years, ANIRON_ALL (M45_x) indicates whether they took iron tablets or syrup during the pregnancy.
ANIRON_ALL consists of a set of up to six separate variables, covering the most recent birth (ANIRON_01) up to, potentially, the sixth-most-recent birth (i.e., ANIRON_02, ANIRON_03, ANIRON_04, ANIRON_05, and ANIRON_06) during the reference period prior to the survey. If ANIRON_ALL is included in a data extract, all these separate variables are included in a researcher's data file.
For most surveys, this information on taking iron supplements during pregnancy was collected for only the most recent birth (ANIRON_01). Surveys in which the data were collected for additional births are noted in the comparability section.