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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: J Subst Abuse Treat. 2012 Jul 25;43(4):389–396. doi: 10.1016/j.jsat.2012.06.001

Table 4.

Outcome variable distributions by time point (n [%])

3 months
(n = 500)
6 months
(n = 487)
12 months
(n = 532)
Abstinence 177 (35) 164 (34) 229 (43)
Alcohol addiction severity a, b
0 28 (8) 41 (11) 53 (14)
> 0 - 0.2 122 (33) 121 (33) 142 (36)
> 0.2 - 0.4 95 (26) 103 (28) 88 (22)
> 0.4 - 0.6 61 (18) 43 (12) 61 (16)
> 0.6 62 (17) 56 (15) 49 (13)
Drug addiction severity a, c
0 15 (4) 20 (5) 37 (8)
> 0 - 0.1 125 (31) 136 (34) 167 (38)
> 0.1 - 0.2 130 (32) 119 (30) 126 (29)
> 0.2 - 0.3 70 (17) 76 (19) 64 (15)
> 0.3 70 (17) 51 (13) 47 (11)
Specialty addiction treatment d 280 (56) 226 (47) 218 (41)
Addiction pharmacotherapy d 86 (17) 83 (17) 97 (18)
Mutual help group c 275 (55) 268 (55) 294 (55)
a

Addiction Severity Index

b

Subjects with alcohol dependence and recent heavy use who completed interviews at 3-months (n=369), 6-months (n=364 ), and 12-months (n=394).

c

Subjects with drug dependence and recent use who completed interviews at 3-months (n =411); 6-months (n= 402); and 12-months (n=441).

d

Past 3 months