Codes

This is a 16-digit numeric variable.

Description

HHID reports the household identifier in the original data.

Note that in datasets that include more than one diary per person and/or more than one person per household, HHID is not unique. Use IDENT to identify uniquely cases within a dataset and to link persons and activities records in hierarchical files.

Comparability

This variable is comparable across time.

Universe

Availability

• 1930, 1965, 1975, 1985, 1993, 1995, 1998

Flags