Table 1 Demographic, perinatal and breastfeeding characteristics of women and their infants included in the study
Characteristic | Total (N = 477) | Non-overweight (n = 315) | Overweight (n = 162) | P value a |
|---|---|---|---|---|
% (n) or M ± SD | ||||
Education (university degree) | 47 (224) | 52 (163) | 38 (61) | .003 |
Age (years) | 30 ± 5 | 30 ± 5 | 30 ± 5 | .83 |
Parity (> 1 child) | 42 (197) | 41 (128) | 43 (69) | .74 |
Marital status (married/de facto) | 96 (457) | 96 (301) | 96 (156) | .70 |
Country of birth (Australia) | 72 (341) | 68 (212) | 80 (129) | .005 |
Health care card (yes) b | 15 (71) | 14 (44) | 17 (27) | .43 |
Edinburgh Postnatal Depression Scale [13] Score c | 6 ± 4 | 6 ± 4 | 6 ± 5 | .29 |
Smoking status (non-smoker) d | 93 (444) | 94 (297) | 91 (147) | .19 |
Infant gender (boy) | 52 (244) | 52 (164) | 50 (80) | .72 |
Infant birth weight (g) | 3457 ± 520 | 3448 ± 450 | 3473 ± 637 | .66 |
Gestational age (weeks) | 40 ± 1 | 40 ± 1 | 40 ± 1 | .94 |
Vaginal delivery (including assisted) | 70 (333) | 76 (238) | 59 (95) | <.001 |