Table 1.
Correlates of consuming ≥4 drinks in a day during pregnancy
| <4 drinks a day n = 6044 | ≥4 drinks a day n = 1921 | χ 2 (1 d.f.) | p | |
|---|---|---|---|---|
| Prenatal factors | ||||
| Maternal age (≥35 years) | 10 % | 11 % | 1.56 | 0.211 |
| Any smoking | 15 % | 30 % | 209.44 | <0.001 |
| Cannabis use | 1 % | 4 % | 62.41 | <0.001 |
| Other illicit drug use | 0.3 % | 0.8 % | 7.20 | 0.007 |
| Parity (≥1) | 54 % | 61 % | 26.34 | <0.001 |
| Highest maternal education (O level or above) | 73 % | 63 % | 77.18 | <0.001 |
| Own home | 79 % | 70 % | 65.28 | <0.001 |
| Married | 81 % | 71 % | 81.20 | <0.001 |
| Maternal depression | 11 % | 18 % | 60.54 | <0.001 |
| Child factors | ||||
| Gestational age (≤36 weeks) | 4 % | 4 % | 0.06 | 0.802 |
| Gender (male) | 51 % | 52 % | 0.78 | 0.377 |
| Birth weight (kg) | 3.44 (0.52) | 3.44 (0.54) | t = 0.11a | 0.915 |
% or mean(s.d.)
a t test, t = 0.11