Findings

What do systematic reviews say?

7 questions · 8 findings · 2 reviews · Pregnancy and Childbirth

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No studies found 0 · 0%GRADE not reported 3 · 37.5%Very low 1 · 12.5%Low 4 · 50%Moderate 0 · 0%High 0 · 0%

Any intermittent iron regimen (with or without other vitamins and minerals) vs daily regimen (with same vitamins and minerals)‐maternal outcomes

Neonatal mortality · Women receiving supplements in pregnancy

It is very uncertain whether any intermittent iron regimen (with or without other vitamins and… changes neonatal death (within 28 days after delivery) compared with daily regimen (with same vitamins and minerals)‐infant outcomes (very low certainty).

1 finding from 1 review

Intermittent oral iron supplementation during pregnancy 2015 · Cochrane Headline outcomes only
RR 0.49 [0.04, 5.42]
1 study · 795 participants
Very low

Pyridoxine vs control

Eclampsia · pregnant women, either during the prenatal period or during labour.

1 finding from 1 review

Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes 2015 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 1242 participants
GRADE not reported

Pyridoxine vs control

Pre‐eclampsia · pregnant women, either during the prenatal period or during labour.

Pyridoxine (B6) showed no clear difference in pre‐eclampsia ‐ Antenatal oral pyridoxine versus control compared with control (low certainty).

2 findings from 1 review

Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes 2015 · Cochrane Headline outcomes only
RR 1.71 [0.85, 3.45]
2 studies · 1197 participants
Low
Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes 2015 · Cochrane Headline outcomes only
RR 1.43 [0.64, 3.22]
1 study · 944 participants
Low

Pyridoxine vs control

Dental caries · pregnant women, either during the prenatal period or during labour.

Pyridoxine (B6) may leads to lower dental decay (increase in decayed, missing or filled teeth) ‐… compared with control (low certainty).

1 finding from 1 review

Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes 2015 · Cochrane Headline outcomes only
RR 0.84 [0.71, 0.98]
1 study · 371 participants
Low

Pyridoxine vs control

Dental decay (increase in decayed, missing or filled teeth) ‐ Antenatal pyridoxine lozenges versus control · pregnant women, either during the prenatal period or during labour.

Pyridoxine (B6) may leads to lower dental decay (increase in decayed, missing or filled teeth) ‐… compared with control (low certainty).

1 finding from 1 review

Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes 2015 · Cochrane Headline outcomes only
RR 0.68 [0.56, 0.83]
1 study · 342 participants
Low

Pyridoxine vs control

Preterm birth · pregnant women, either during the prenatal period or during labour.

1 finding from 1 review

Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes 2015 · Cochrane Headline outcomes only
no estimate extracted
0 participants
GRADE not reported

Pyridoxine vs control

Low birthweight · pregnant women, either during the prenatal period or during labour.

1 finding from 1 review

Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes 2015 · Cochrane Headline outcomes only
no estimate extracted
0 participants
GRADE not reported