The sample is composed of 617 prisoners who served time in
a county jail during 1972. Among these individuals, 386 had psychiatric
contacts either before or after their imprisonment (i.e., between 1960
and 1977) and 231 did not. A control group of 386 psychiatric patients
who had not served jail time during 1972 was also selected from the
lists of the Psychiatric Case Register. These patients were matched to
jail inmates with the psychiatric contacts on the following
characteristics: year of first psychiatric contact, census tract of
first contact, birth year, gender, and race.
Prisoners (some having had psychiatric contact, others not)
who served time in a county jail in 1972.
County jail inmate intake logs and probation files, and
a county psychiatric case register.