The overall sampling units cannot be divided into subgroups in those situations where several families share the same housing unit. All households members can be identified in the survey. A child of someone other than a household member or of someone living outside the household is not included in the survey. In this survey spouses are defined as people who are cohabiting, as well as people who are married. Only one other adult can be within the household when they are marriedor cohabiting.
Children belong either to the unit head or the spouse or both.
Labour force status information is available for this survey. In the interview all persons were included. Labour force status information is collected from different administrative registers. The geographic codes in the LIS data are H-regions 1. Stockholm and surroundings 8.