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PID
Person identifier

Codes

This is a 14-digit numeric variable.

Description

PID indicates personal identifier in the original survey.

Note that in samples where more than one survey is included, PID is not unique. Use IDENT to identify uniquely cases and link persons and activities records in hierarchical files.

Comparability

This variable is comparable across years.

Universe

  • All persons.

Availability

  • 1965, 1975, 1985, 1993, 1995, 1998, 2003-2012

Flags

This variable has no flags.