Table 3.

Logistic regression results of 12‐step onsite predicting 12‐step attendance at 3‐, 6‐ and 12‐months follow‐ups.

Variable	B	S.E.	Sig.	Odds ratio	95% CI
				(Exp B)	(Exp B)
Independent variable: 12‐step onsite
Dependent variable: 12‐step attendance during treatment (assessed at treatment end)
Latino	−1.02	.53	.06	.36	(.13–.1.02)
African‐American	−.65	.52	.20	.52	(.19–1.44)
Education	.11	.08	.17	1.12	(.95–1.32)
Treatment duration	.00	.002	.00	1.00	(1.00–1.01)
Prior 12‐step (year before baseline)	1.49	.33	.00	4.45	(2.17–8.05)
12‐step onsite	1.06	.34	.00	2.89	(.35–24.09)
Independent variable: 12‐step attendance during treatment
Dependent variable: 12‐step attendance since 6 month follow‐up (assessed at 12 months follow‐up)
Latino	−.33	.55	.54	.71	(.25–2.10)
African‐American	−.18	.51	.71	1,20	(.45–3.24)
Education	.15	.09	.09	1.16	(.97–1.37)
Treatment duration	.00	.00	.43	1.00	(1.00–1.01)
Prior 12‐step (year before baseline)	.43	.34	.21	1.54	(.78–3.01)
12‐step during treatment	1.67	.38	.00	5.30	(2.54–11.07)
Dependent variable: Continuous abstinence from substance use over 12‐months post‐treatment end
Independent variable: 12‐step onsite
Severity	.08	.06	.14	1.09	(.97–1.22)
Abstinent time at discharge	.00	.00	.00	1.00	(1.00–1.01)
Treatment duration	.00	.00	.02	1.01	(1.00–1.01)
Latino	−1.10	.69	11	.33	(.08–1.28)
African‐American	.17	.61	.78	1.19	(.36–3.97)
Education	.11	.11	.32	1.11	(.90–1.38)
12‐step onsite	1.75	.46	.00	5.79	(2.32–14.50)
Mediation model with 12‐step attendance during treatment added as independent variable ‐ Sobel’s Z = 2.31, p<.05
Severity	.05	.06	.41	1.05	(.94–1.18)
Abstinent time at discharge	.00	.00	.00	1.00	(1.00–1.01)
Treatment duration	.00	.00	.06	1.00	(1.00–1.01)
Latino	−1.14	.73	.12	.32	(.08–1.34)
African‐American	.01	.64	.97	1.02	(.29–3.56)
Education	.10	.11	.36	1.11	(.89–1.39)
12‐step onsite	1.42	.48	.00	4.10	(1.60–10.54)
12‐step during treatment	.00	.00	.01	1.01	(1.00–1.01)