Skip to main content
. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Drug Alcohol Depend. 2012 Sep 20;128(3):222–229. doi: 10.1016/j.drugalcdep.2012.08.027

Table 1.

Baseline characteristics of study participants.

Total Sample (n=300) OP (n=155) IOP(n=145)
Female Gender, n(%) 113 (37.67) 62 (40.00) 51 (35.17)
Age, mean (SD) 46.09 (6.45) 46.75 (6.10) 45.38 (.56)
Married, n(%) 31 (10.33) 15 (9.68) 16 (11.03)
Employed in past 30d, n(%) 108 (36.00) 55 (35.48) 53 (36.55)
Years of Education, mean (SD) 11.48 (1.61) 11.56 (1.60) 11.39 (.13)
Number of lifetime hospitalizations, mean (SD) 2.99 (5.06) 3.00 (4.48) 2.98 (.47)
No previous opiate agonist treatment, n(%) 92 (30.67) 41 (26.45) 51 (35.17)
Previous buprenorphine treatment only, n(%) 87 (29.00) 47 (30.32) 40 (27.59)
Previous methadone treatment only, n(%) 55 (18.33) 30 (19.35) 25 (17.24)
Previous buprenorphine and methadone treatment, n(%) 66 (22.00) 37 (23.87) 29 (20.00)
Injection drug user, n(%) 70 (23.33) 41(26.45) 29 (20.00)
Cocaine use in last 30d or cocaine+ urine, n(%) 184 (61.33) 87 (56.13) 97 (66.90)