Table 2.
Means, standard deviations in parentheses, and percentages of the variables by study
| Variable | |||||
|---|---|---|---|---|---|
| Study | Man | White | First-year | PBS | AlcProb |
| 1 | 60% | 73% | 62% | 1.06(0.79) | 0.21(0.72) |
| 2 | 71% | 69% | 63% | 1.01(0.84) | −0.60(0.72) |
| 8a | 33% | 87% | 50% | 0.55(0.85) | −0.08(0.97) |
| 8b | 41% | 62% | 47% | 0.57(0.89) | −0.11(1.00) |
| 8c | 38% | 83% | 36% | 0.46(0.91) | 0.02(0.94) |
| 9 | 38% | 73% | 100% | 0.42(0.77) | 0.75(0.71) |
| 10.1 | 46% | 84% | 100% | - | 1.03(0.76) |
| 11 | 59% | 64% | 100% | - | −0.82(0.95) |
| 12 | 47% | 93% | 3% | −0.46(0.92) | 0.39(0.60) |
| 13/14 | 38% | 95% | 26% | - | 1.08(0.51) |
| 18 | 25% | 89% | 33% | 0.49(0.88) | −0.17(0.96) |
| 20 | 52% | 84% | 78% | - | 0.62(0.83) |
| 21 | 36% | 85% | 42% | 0.36(0.92) | 0.89(0.77) |
| 22 | 43% | 87% | 100% | 0.38(0.89) | −0.18(0.90) |
Notes. Man (coded 1; 0 = woman), White (coded 1; non-White = 0), First-year (coded 1; 0 = non first-year). PBS = Estimated latent trait (θ) scores at baseline for utilizing protective behavioral strategies. AlcProb = Estimated latent trait scores at baseline for alcohol-related problems. “−” indicate that the variable was not assessed. The presented descriptive statistics were obtained from the entire study sample.