TABLE 3.
Predictors of attained plasma 25(OH)D3 concentration in late pregnancy1
| Univariate model2 | Multivariate model2, 3 | ||||
|---|---|---|---|---|---|
| n | β ± SE | P | β ± SE | P | |
| Age, y | 803 | 0.07 ± 0.08 | 0.4 | ||
| Gestational age in late pregnancy, wk | 803 | −0.77 ± 0.56 | 0.2 | −0.62 ± 0.55 | 0.3 |
| Weight in early pregnancy, kg | 803 | −0.06 ± 0.05 | 0.3 | — | — |
| Weight in late pregnancy, kg | 802 | −0.06 ± 0.05 | 0.3 | — | — |
| Change in weight between early and late pregnancy, kg | 802 | −0.03 ± 0.17 | 0.8 | — | — |
| MUAC in early pregnancy, cm | 802 | −0.14 ± 0.16 | 0.4 | — | — |
| MUAC in late pregnancy, cm | 803 | −0.25 ± 0.16 | 0.1 | — | — |
| Triceps skinfold thickness in early pregnancy, cm | 802 | −0.11 ± 0.0 | 0.2 | — | — |
| Triceps skinfold thickness in late pregnancy, cm | 803 | −0.21 ± 0.09 | 0.02 | −0.21 ± 0.09 | 0.02 |
| Compliance, % | 803 | 0.10 ± 0.04 | 0.02 | 0.10 ± 0.04 | 0.01 |
| Weeks on supplement | 798 | 0.97 ± 0.15 | <0.0001 | 0.98 ± 0.15 | <0.0001 |
1
MUAC, midupper arm circumference; 25(OH)D3, 25-hydroxycholecalciferol.
2
Early 25(OH)D3 concentration and supplementation group were included as covariates. Interactions between predictor variables and supplementation group were nonsignificant.
3
n = 798.