Neonatal mortality · women with twin pregnancies were randomised from 25 weeks
Fetal growth (biometry) + umbilical artery Doppler showed no clear difference in neonatal death compared with fetal growth (low certainty).
1 finding from 1 review
Preterm birth less than 28 weeks · women with twin pregnancies were randomised from 25 weeks
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Gestational age at birth (weeks) · women with twin pregnancies were randomised from 25 weeks
Fetal growth (biometry) + umbilical artery Doppler showed no clear difference in gestational age at birth (weeks) compared with fetal growth (moderate certainty).
1 finding from 1 review
Caesarean section · women with twin pregnancies were randomised from 25 weeks
Fetal growth (biometry) + umbilical artery Doppler showed no clear difference in caesarean section (any) compared with fetal growth (high certainty).
1 finding from 1 review
Induction of labour · women with twin pregnancies were randomised from 25 weeks
Fetal growth (biometry) + umbilical artery Doppler showed no clear difference in induction of labour compared with fetal growth (moderate certainty).
1 finding from 1 review
Number of antenatal hospital admissions · women with twin pregnancies were randomised from 25 weeks
Fetal growth (biometry) + umbilical artery Doppler showed no clear difference in antenatal admission to hospital compared with fetal growth (high certainty).
1 finding from 1 review
Low birthweight · women during the preconception, pregnancy and postpartum period
Any supplement containing iodine showed no clear difference in low birthweight compared with same supplement without iodine or no treatment/placebo (child… (low certainty).
1 finding from 1 review
Neonatal hypothyroidism or elevated TSH · women during the preconception, pregnancy and postpartum period
It is very uncertain whether any supplement containing iodine changes neonatal hypothyroidism or elevated TSH compared with same supplement without iodine or no treatment/placebo (child… (very low certainty).
1 finding from 1 review
Neonatal adverse effect: elevated TPO‐ab · women during the preconception, pregnancy and postpartum period
It is very uncertain whether any supplement containing iodine changes neonatal adverse effect: elevated TPO‐ab compared with same supplement without iodine or no treatment/placebo (child… (very low certainty).
1 finding from 1 review
Child adverse effect: hyperthyroidism · women during the preconception, pregnancy and postpartum period
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Maternal hypothyroidism ‐ postpartum · women during the preconception, pregnancy and postpartum period
Any supplement containing iodine showed no clear difference in maternal hypothyroidism ‐ postpartum compared with same supplement without iodine or no treatment/placebo (maternal… (low certainty).
1 finding from 1 review
Maternal adverse effect: elevated TPO‐ab ‐ postpartum · women during the preconception, pregnancy and postpartum period
Any supplement containing iodine showed no clear difference in maternal adverse effect: elevated TPO‐ab ‐ postpartum compared with same supplement without iodine or no treatment/placebo (maternal… (low certainty).
1 finding from 1 review
Maternal adverse effect: hyperthyroidism ‐ postpartum · women during the preconception, pregnancy and postpartum period
Any supplement containing iodine showed no clear difference in maternal adverse effect: hyperthyroidism ‐ postpartum compared with same supplement without iodine or no treatment/placebo (maternal… (low certainty).
1 finding from 1 review
Perinatal mortality · women during the preconception, pregnancy and postpartum period
Any supplement containing iodine showed no clear difference in perinatal mortality compared with same supplement without iodine or no treatment/placebo (child… (low certainty).
1 finding from 1 review
Macrosomia · pregnant women with pre‐existing diabetes
1 finding from 1 review
Caesarean section · pregnant women with pre‐existing diabetes
1 finding from 1 review
Fetal anomaly · pregnant women with pre‐existing diabetes
1 finding from 1 review
Birth trauma including shoulder dystocia, nerve palsy, or fracture · pregnant women with pre‐existing diabetes
1 finding from 1 review
Composite outcome measure of neonatal morbidity · pregnant women with pre‐existing diabetes
1 finding from 1 review
Perinatal mortality · pregnant women with pre‐existing diabetes
1 finding from 1 review