Birth weight (grams) | |||
Iron stores | Unadjusted mean difference (95% CI); p | Adjusted mean difference (95% CI); p | Â |
Ferritin, μg/L (log2)1 | −72 (−113, −30); 0.001 | −63 (−103, −23); 0.002 |  |
 |  | Primigravid | Multigravid |
 |  | −114 (−173, −55); <0.001 | −20 (−74, 33); 0.457 |
Iron deficiency | |||
 Iron replete | Reference group | Reference group |  |
 Iron deficient | 204 (89, 320); 0.001 | 230 (118, 342); <0.001 |  |
 |  | Primigravid | Multigravid |
 |  | 351 (188, 514); <0.001 | 125 (−28, 277); 0.108 |
Low birth weight (<2500Â g) | |||
Iron stores | Unadjusted OR (95% CI); p | Adjusted OR (95% CI); p | Â |
Iron deficiency | |||
 Iron replete | Reference group | Reference group |  |
 Iron deficient | 0.34 (0.18, 0.65); 0.001 | 0.32 (0.16, 0.64); 0.001 |  |
 |  | Primigravid | Multigravid |
 |  | 0.26 (0.10, 0.66); 0.005 | 0.42 (0.15, 1.20); 0.105 |
Preterm birth (<37Â weeks) | |||
Iron stores | Unadjusted OR (95% CI); p | Adjusted OR (95% CI); p | Â |
Ferritin, μg/L (log2)1 | 1.13 (0.91, 1.41); 0.254 | 1.06 (0.84, 1.35); 0.605 |  |
 |  | Primigravid | Multigravid |
 |  | 1.20 (0.86, 1.66); 0.280 | 0.93 (0.65, 1.33); 0.681 |
Iron deficiency | |||
 Iron replete | Reference group | Reference group |  |
 Iron deficient | 0.60 (0.33, 1.10); 0.098 | 0.57 (0.30, 1.09); 0.089 |  |
 |  | Primigravid | Multigravid |
 |  | 0.39 (0.16, 0.97); 0.042 | 0.86 (0.32, 2.30); 0.767 |