Table 1.

Results of logistic regression analyses examining 6-month post-release urine tests

	Opioids†		Cocaine‡
Condition	OR	95% CI	OR	95% CI
CO versus C + T	0.53	0.21–1.35	0.34*§	0.12–0.96
CO versus C + M	4.68*§	1.77–12.43	2.14	0.78–5.85
C + M versus C + T	2.46	0.95–6.37	0.73	0.29–1.86
Age	1.03	0.97–1.09	1.05	0.99–1.12
Age at first crime	1.03	0.95–1.11	1.02	0.94–1.11
Cocaine 30	1.00*	0.97–1.09	1.03	0.99–1.06
Completed prison treatment	1.42	0.59–3.41	0.80	0.33–1.96

Urinalyses obtained; CO: n = 40; C + T: n = 39; C + M: n = 43. OR: odds ratio; CO: counseling only; C + T: counseling + transfer; C + M: counseling + methadone.

^*P < 0.05.

^†Omnibus tests χ² = 14.84; P = 0.022.

^‡Omnibus tests χ² = 12.30; P = 0.056.

^§Statistical comparison with CO.