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. Author manuscript; available in PMC: 2016 Apr 27.
Published in final edited form as: Am J Drug Alcohol Abuse. 2010 Jan;36(1):31–38. doi: 10.3109/00952990903544828

TABLE 4.

Bivariate and multiple regression analyses of association between diagnosis type and cumulative lifetime served in prison.

Psychiatric
Diagnosis
Only
(N = 26)		 Dual
Diagnosis
(N = 51)		 Triple
Diagnosis
(N = 88)
Bivariate
 regression:
 coefficient (p)		 Ref 18.8 (p = .14) 35.4 (p < .01)
Multiple
 regression:
 coefficient (p)		 Ref 23.9 (p = .24) 46.7 (p < .01)

Age, ethnicity, marital status, history of injection drug use, sentence length for current imprisonment, and imprisonment charge were included as control variables in multiple regression.