Table 2.
Peak Age and Frequency of Heavy Drinking by Sex and NLSY Cohorts
| 1979 Cohort | 1997 Cohort | |||||||
|---|---|---|---|---|---|---|---|---|
| Age | (95% CI) | Freqa | (95% CI) | Age | (95% CI) | Freqa | (95% CI) | |
|
|
|
|||||||
| Men | ||||||||
| White | 18.8 | (15.2, 22.3) | 2.78 | (2.67, 2.90) | 23.0 | (22.8, 23.3) | 2.78 | (2.63, 2.93) |
| Black | 28.3 | (24.9, 31.5) | 1.66 | (1.35, 1.98) | 25.9 | (24.7, 27.0) | 1.28 | (1.11, 1.45) |
| Hispanic | 27.3b | (17.8, 36.4) | 2.32b | (1.52, 3.12) | 23.5 | (23.0, 24.0) | 2.29 | (2.05, 2.53) |
| Women | ||||||||
| White | 16.0 | (9.1, 22.7) | 1.18 | (1.14, 1.23) | 21.9 | (21.4, 22.5) | 1.37 | (1.27, 1.47) |
| Black | 28.5 | (25.0, 32.0) | 0.60 | (0.47, 0.74) | 25.9 | (24.1, 27.7) | 0.53 | (0.43, 0.64) |
| Hispanic | 23.4 | (22.0, 24.6) | 0.77 | (0.53, 1.01) | 24.0 | (23.3, 24.7) | 1.12 | (0.92, 1.32) |
a
Freq = Mean Frequency of Heavy Drinking in the past 30 days
b
For Hispanic men in the 1979 cohort, age and frequency of heavy drinking correspond to the lowest point in the trajectory, reflecting the convex nature of the curve.