Table 2.

Crude hazards ratios, 95% confidence intervals, and p-values for post-release drug use

Predictors	Crude hazards ratios (95% CI)	p-value
Age
Less than 30	1.00**	0.78
30 to 49	1.29 (0.55, 3.02)
Over 50	1.14 (0.48, 2.73)
Sex		0.040
Men	1.00**	0.04
Women	1.95 (1.03, 3.69)
Marital status
Other	1.00**	0.24
Never married	0.75 (0.47, 1.21)
Educational attainment
Less than high school	1.00**	0.99
High school or more	1.00 (0.64, 1.57)
First incarceration
No	1.00**	0.73
Yes	0.87 (0.40, 1.90)
Incarceration duration over 5 years
No	1.00**	0.77
Yes	0.92 (0.53, 1.61)
History of powder cocaine use
No	1.00**	0.06
Yes	1.59 (0.97, 2.59)
History of rock or crack cocaine use
No	1.00**	0.19
Yes	1.34 (0.87, 2.07)
History of heroin use
No	1.00**	0.03
Yes	1.64 (1.06, 2.55)
History ofcsame sex partnership
No	1.00**	0.09
Yes	1.51 (0.94, 2.41)
Type of drug offense
Drug distribution or intent to sell	1.00**	0.06
Drug possession only	1.52 (0.98, 2.34)

^**Reference category