From: Daily versus intermittent iron supplementation in pregnant women
 | Daily (mean ± SD) | Three times a week (mean ± SD) | Weekly (mean ± SD) | P value | |
---|---|---|---|---|---|
Hemoglobin level(g/dL) | Before supplementation | 12/44 ± 0/99 | 12/62 ± 0/78 | 12/53 ± 0/77 | 0.518 |
 | After supplementation | 11/084 ± 0/82 | 14/03 ± 14/68 | 11/62 ± 0/82 | 0.276 |
Serum iron level(μg/dl) | Before supplementation | 96/74 ± 34/31 | 94/21 ± 31/14 | 97/28 ± 31/65 | 0.962 |
 | After supplementation | 97/14 ± 40/06 | 99/90 ± 53/33 | 96/57 ± 62/62 | 0.970 |
Serum ferritin level (μg/L)' | Before supplementation | 59/66 ± 45/32 | 58/82 ± 33/6 | 56/53 ± 33/33 | 0.827 |
 | After supplementation | 39/90 ± 4/51 | 32/86 ± 32/78 | 37/87 ± 34/95 | 0.635 |