Table 1.
Self-reported alcohol intake among pregnant women in the CARE study
| Characteristic | n (% total sample) | Mean | 95% CI |
|---|---|---|---|
| Alcohol intake (units/week)* | |||
| 4 Weeks before pregnancy | 1153 (100.0) | 11.2 | 10.4 to 12.1 |
| First trimester | 1135 (98.4) | 4.0 | 3.6 to 4.4 |
| Second trimester | 793 (68.8) | 1.8 | 1.6 to 2.0 |
| Third trimester | 377 (32.7) | 1.9 | 1.5 to 2.3 |
| Categories of intake 4 weeks before pregnancy† | |||
| Non-drinkers | 157 (13.6) | 0 | 0 |
| ≤2 Units/week | 148 (12.8) | 0.9 | 0.9 to 1.1 |
| >2 Units/week | 848 (73.6) | 15.1 | 14.1 to 16.1 |
| Categories of intake trimester 1 | |||
| Non-drinkers | 243 (21.4) | 0 | 0 |
| ≤2 Units/week | 292 (25.7) | 0.8 | 0.7 to 0.8 |
| >2 Units/week | 600 (52.9) | 7.2 | 6.6 to 7.9 |
| Categories of intake trimester 2 | |||
| Non-drinkers | 291 (36.7) | 0 | 0 |
| ≤2 Units/week | 278 (35.1) | 0.8 | 0.8 to 0.9 |
| >2 Units/week | 224 (28.3) | 5.4 | 4.8 to 5.9 |
| Categories of intake trimester 3 | |||
| Non-drinkers | 193 (51.2) | 0 | 0 |
| ≤2 Units/week | 80 (21.2) | 0.9 | 0.8 to 1.0 |
| >2 Units/week | 104 (27.6) | 6.3 | 5.2 to 7.3 |
*1 unit of alcohol is 10 mL by volume or 8 g by weight of pure alcohol.
†Categories based on the Department of Health (2008) weekly recommendations of no more than 2 units/week.14
CARE, Caffeine and Reproductive Health.