Table 3 Associations of maternal pre-pregnancy overweight with term birth weight and the risk of being LGA; overall and in strata of maternal smoking during pregnancy
Birth weight (g) | LGA | ||||
|---|---|---|---|---|---|
Crude Diff (95% CI) | Adjusted Diff a (95% CI) | LGA/Total (%) | Crude OR (95% CI) | Adjusted OR b (95% CI) | |
Main effect | |||||
Non-overweight | 0 (Ref) | 0 (Ref) | 261/2325 (10.1%) | 1.0 (Ref) | 1.0 (Ref) |
Overweight | 107.6 (66.1, 149.1) | 121.8 (79.7, 163.9) | 103/537 (16.1%) | 1.71 (1.34, 2.18) | 1.75 (1.36, 2.25) |
Strata maternal smoking during pregnancy | |||||
Non-smoking | |||||
Non-overweight | 0 (Ref) | 0 (Ref) | 228/1940 (10.5%) | 1.0 (Ref) | 1.0 (Ref) |
Overweight | 110.4 (65.2, 155.6) | 118.2 (72.3, 164.1) | 89/424 (17.4%) | 1.78 (1.37, 2.33) | 1.79 (1.37, 2.35) |
Smoking | |||||
Non-overweight | 0 (Ref) | 0 (Ref) | 33/385 (7.9%) | 1.0 (Ref) | 1.0 (Ref) |
Overweight | 130.6 (30.6, 230.6) | 147.7 (45.7, 249.7) | 14/113 (11.0%) | 1.44 (1.13, 4.88) | 1.61 (0.75, 2.79) |