Table 2.
Maternal Education (years) | Preterm Delivery | Preterm Low Birthweight Delivery | ||
Crude | Adjusted3 | Crude | Adjusted3 | |
OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
< 12 yrs | 1.12 (1.03, 1.23) | 1.17 (1.06, 1.29) | 1.14 (1.01, 1.29) | 1.27 (1.11, 1.45) |
= 12 yrs | 1.05 (0.97, 1.14) | 1.10 (1.01, 1.20) | 1.12 (1.00, 1.26) | 1.20 (1.06, 1.35) |
> 12 yrs | REFERENT | REFERENT | REFERENT | REFERENT |
homogenetity1 | p = 0.04 | p < 0.01 | p = 0.06 | p < 0.01 |
trend2 | p = 0.01 | p < 0.01 | p = 0.03 | p < 0.01 |
1 test of homogeneity (equal odds)
2 test for trend of odds
3 adjusted for parity, sex of child and maternal age using logistic regression