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.
Whether the columns are used for last birth only variables
Column used for variables related only to last births. In the standard, some questions are asked about the last child but in some countries these questions are asked about all children born in the last three/five years. This variable gives an indication on whether the questionnaire followed the standard or was changed to include more children.