Table 3 Initiation of breastfeeding and pregnancy outcomes according to BMI class.
BMI Class I (30.0–34.9 kg/m2) | BMI Class II (35.0–39.9 kg/m2) | BMI Class III (≥40.0 kg/m2) | Class 2 compared to class 1 | Class 3 compared to class 1 | |
|---|---|---|---|---|---|
N (%) | Odds ratio (95% CI) | ||||
Initiation of breastfeeding | 294/354 (83.1%) | 189/225 (84.0%) | 108/136 (79.4%) | 1.07 (0.68–1.68) | 0.79 (0.48–1.30) |
Parity | 176/354 (50%) | 120/354 (53%) | 67 (49%) | 1.15 (0.83, 1.62) | 0.98 (0.66, 1.46) |
Unassisted vaginal | 176/354 (50%) | 112/225 (50%) | 57/136 (42%) | ref | ref |
Operative vaginal | 44/354 (12%) | 33/225 (15%) | 16/136 (11%) | 1.18 (0.71–1.96) | 1.12 (0.59–2.14) |
Pre-labour caesarean | 75/354 (21%) | 37/225 (16%) | 32/136 (23%) | 0.78 (0.49–1.23) | 1.32 (0.79–2.19) |
Caesarean in labour | 59/354 (17%) | 43/225 (19%) | 31/136 (23%) | 1.14 (0.72–1.81) | 1.62 (0.96–2.75) |
GDM diagnosis | 77/345 (22%) | 75/218 (34%) | 45/136 (33%) | 1.82 (1.25–2.66)** | 1.11 (1.11–2.66)* |
Infant birthweight ≥4 kg | 54/354 (15%) | 30/221 (13%) | 17/136 (13%) | 0.85 (0.53–1.38) | 0.79 (0.44–1.43) |
