Smartphone Delivery of Mobile HIV Risk Reduction Education
Table 3
Demographic and drug use characteristics at baseline ().
Methadone (MTD)
Buprenorphine (BUP)
P-value
Male (n (%))
9 (81%)
11 (85%)
n.s.
African American (n (%))
8 (73%)
7 (54%)
n.s.
Age (mean ± SD)
43.5 ± 8.7
40.5 ± 6.8
n.s.
Education in years (median (IQR))
12 (12,12)
12 (11, 12)
n.s.
Married (n (%))
0 (0%)
3 (30%)
n.s.
Days paid for work in last 30 (mean ± SD)
3.6 ± 8.4
9.2 ± 8.9
n.s.
Usual full-time employment (n (%))
4 (44%)
3 (30%)
n.s.
Days cocaine use in last 30 (median (IQR))
0 (0, 15)
0.5 (0, 4)
n.s.
Days heroin use in last 30 (mean ± SD)
19.6 ± 10.4
13.5 ± 10.4
n.s.
Days other opiate use in last 30 (mean ± SD)
4.1 ± 6.0
17.7 ± 11.6
<0.005
Days alcohol use in last 30 (median (IQR))
0 (0, 0)
1 (0, 3)
n.s.
Days alcohol intox last 30 (median (IQR))
0 (0, 0)
0.5 (0, 3)
n.s.
Years cocaine use (median (IQR))
10 (1,20)
1 (0, 7)
n.s.
Years heroin use (mean ± SD)
17.9 ± 12.0
12.3 ± 9.3
n.s.
Years other opiate use (median (IQR))
0 (0,2)
1 (0,7)
n.s.
Years alcohol use (median (IQR))
4 (0,4)
1 (0,13)
n.s.
Categorical variables (gender, ethnicity, marital status, and employment status) were analyzed using Fisher’s exact test. Continuous variables were analyzed using student t-tests (normally distributed) and Wilcoxon rank sum tests (nonnormally distributed).
