Table 3.

Effects of chronic care management intervention for substance dependence on mutual help meeting attendance and addiction treatment utilization

	BASELINE		12-MONTH FOLLOW-UP
Outcome	Intervention	Control	Intervention	Control	Odds ratio† (95% confidence interval)	p
All participants	n=282	n=281	n=270	n=262	n=553
Any mutual help meeting attendance (No. (%))	136 (48%)	133 (48%)	147 (54%)	147 (56%)	0.91 (0.69, 1.19) §	0.49
Any addiction treatment (No. (%))	95 (34%)	111 (40%)	132 (49%)	116 (44%)	1.41 (1.09, 1.83) §	0.01
Any inpatient addiction treatment (No. (%))	60 (21%)	70 (25%)	49 (18%)	48 (18%)	0.97 (0.73, 1.30) §	0.86
Any addiction medications (No. (%))	13 (5%)	20 (7%)	58 (21%)	39 (15%)	1.88 (1.28, 2.75) §	0.001
Alcohol dependence subgroup	n=206	n=207	n=199	n=195	n=409
Any mutual help meeting attendance (No. (%))	103 (50%)	94 (46%)	106 (53%)	103 (53%)	1.04 (0.76, 1.44) §	0.79
Any addiction treatment (No. (%))	68 (33%)	82 (40%)	86 (43%)	81 (42%)	1.36 (1.01, 1.84) §	0.04
Any inpatient addiction treatment (No. (%))	42 (20%)	53 (26%)	33 (17%)	37 (19%)	1.00 (0.71, 1.41) §	1.00
Any addiction medications (No. (%))	8 (4%)	16 (8%)	32 (16%)	19 (10%)	2.12 (1.29, 3.48) §	0.002
Drug dependence subgroup	n=233	n=232	n=224	n=217	n=458
Any mutual help meeting attendance (No. (%))	114 (49%)	113 (49%)	126 (56%)	126 (58%)	0.91 (0.68, 1.22) §	0.53
Any addiction treatment (No. (%))	81 (35%)	96 (41%)	119 (53%)	99 (46%)	1.47 (1.10, 1.96) §	0.008
Any inpatient addiction treatment (No. (%))	54 (23%)	60 (26%)	43 (19%)	43 (20%)	0.96 (0.70, 1.31) §	0.79
Any addiction medications (No. (%))	11 (5%)	15 (6%)	54 (24%)	36 (17%)	1.97 (1.30, 3.00) §	0.001

Outcomes over the past 3 months were assessed at 3, 6 and 12 month follow-up

^†Corresponds to the main effect of the intervention in models that do not include interaction terms

^§ from GEE Logistic Model