Table 2.
Individual and mutually-adjusted multivariate associations examining the predictors of postpartum weight retention (kg) at six months.
| Predictor | Individual models* | Mutually-adjusted multivariate model* (n=1564) | ||||||
|---|---|---|---|---|---|---|---|---|
| n | Coefficient | 95% CI | p-value | Coefficient | 95% CI | p-value | ||
| Parity | 1 | 2550 | reference | reference | ||||
| 2 + | -1.45 | -1.94, -0.96 | <0.001 | -1.06 | -1.60, -0.53 | <0.001 | ||
| Pre-pregnancy BMI | (kg/m2, standardised)^ | 2550 | -0.25 | -0.50, -0.01 | 0.04 | -0.53 | -0.81, -0.26 | <0.001 |
| GWG | Inadequate | -3.00 | -3.61, -2.39 | <0.001 | -2.75 | -3.47, -2.04 | <0.001 | |
| Adequate | 2207 | reference | reference | |||||
| Excessive | 4.42 | 3.91, 4.93 | <0.001 | 4.45 | 3.85, 5.06 | <0.001 | ||
| Serum Vitamin D | Early pregnancy (nmol/l) | 1687 | -0.01 | -0.03, -0.003 | 0.01 | -0.01 | -0.02, -0.001 | 0.03 |
| Late pregnancy (nmol/l)^ | 1989 | -0.20 | -0.46,0.06 | 0.14 | ||||
| Glycaemic Index | Early pregnancy | 1846 | 0.08 | -0.02, 0.19 | 0.12 | |||
| Late pregnancy | 2255 | 0.01 | -0.09, 0.11 | 0.83 | ||||
| Breastfeeding duration | < 6 months | 2466 | reference | reference | ||||
| ≥ 6 months | -1.01 | -1.59, -0.43 | 0.001 | -0.66 | -1.26, -0.05 | 0.04 | ||
*
Adjusted for gestational age at birth, maternal age at conception, pre-pregnancy diet quality, pre-conception walking speed, and postpartum maternal smoking.
^
log transformed and standardised with units in SDs