Table 1.
Subject Demographics and Clinical Characteristics by Study:
| Subject Demographics |
Study I (n = 212) |
Study II (n = 133) |
Test Statistic | p – value1 | |
|---|---|---|---|---|---|
| Age (yrs) | 43.7 (10.7) | 39.2 (6.9) | 5.1 | <0.0001 | |
| Gender (% male) | 72.9 | 72.0 | 0.01 | 0.92 | |
| Race (% white) | 72.9 | 21.3 | 101.8 | <0.0001 | |
| Married (%) | 38.7 | 17.3 | 20.0 | <0.0001 | |
| Education (yrs) 2 | 13.9 (2.7) | 12.5 (1.9) | 5.5 | <0.0001 | |
| Clinical Characteristics | 95% CI | ||||
| HCV seropositive (%)2 |
12.7 | 20.0 | 3.2 | 0.10 | |
| % drinking days in last 30d3 |
71.1 (27.3) | 57.1 (26.6) | 5.1 | <0.0001 | (8.7,19.4) |
| % days heavy drinking in last 30d2 |
60.8 (30.1) | 49.9 (27.1) | 3.8 | <0.0001 | (5.0, 16.6) |
| Ever used cocaine (%)2 |
26.9 | 100 | 202.9 | <0.0001 | |
1
Continuity correction for binomial variables
2
Equal variances not assumed
3
Equal variances assumed