Preterm birth less than 34 weeks' gestation
It is very uncertain whether cervical cerclage in combination with antibiotics and tocolytics changes preterm birth < 34 completed weeks of pregnancy compared with cervical cerclage alone (very low certainty).
1 finding from 1 review
Gestational age (preterm birth < 37 weeks) · pregnant women in second trimester of pregnancy
Antihelminthics showed no clear difference in preterm birth (birth before 37 weeks of gestation) compared with control (low certainty).
1 finding from 1 review
Preterm birth less than 34 weeks' gestation · women with a twin pregnancy
Oral betamimetic showed no clear difference in very preterm birth (less than 34 weeks' gestation) compared with placebo (low certainty).
1 finding from 1 review
Preterm birth · women during pregnancy
1 finding from 1 review
no estimate extracted
0 participants
GRADE not reported
Preterm birth · women during pregnancy
1 finding from 1 review
no estimate extracted
0 participants
GRADE not reported
Preterm birth · pregnant women
(Infant outcomes) Any supplements containing iron and folic acid showed no clear difference in preterm birth (less than 37 weeks of gestation) (ALL) compared with same supplements without iron nor folic acid (no iron nor folic acid… (low certainty).
1 finding from 1 review
Preterm birth · pregnant women
(Infant outcomes) Any supplements containing iron showed no clear difference in preterm birth (less than 37 weeks of gestation) (ALL) compared with same supplements without iron or no treatment/placebo (no iron or… (moderate certainty).
1 finding from 1 review
Preterm birth · pregnant women, either during the prenatal period or during labour.
1 finding from 1 review
no estimate extracted
0 participants
GRADE not reported
Preterm birth less than 34 weeks' gestation · pregnant women with chronic or gestational hypertension
Setting of BP measurement: self‐measurement showed no clear difference in preterm birth (birth before 34 completed weeks' gestation) compared with conventional clinic measurement (low certainty).
1 finding from 1 review
Preterm birth less than 34 weeks' gestation · Women with a multiple pregnancy
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Preterm birth · women in the third trimester of pregnancy
Test of placental function showed no clear difference in preterm birth (before 37 weeks' gestation) reported gestation at birth compared with standard care (low certainty).
1 finding from 1 review
Gestational age (preterm birth < 37 weeks) · pregnant women accessing prenatal care
Group antenatal care showed no clear difference in preterm birth (gestational age at time of birth less than 37 weeks'… compared with individual antenatal care (adjusted data) (moderate certainty).
1 finding from 1 review
Intervention not reported
Very preterm birth (less than 34 weeks) ‐ assuming complete correlation between twins · women with multiple pregnancy
The intervention showed no clear difference in very preterm birth (less than 34 weeks) ‐ assuming complete… (low certainty).
1 finding from 1 review
Intervention not reported
Very preterm birth (less than 34 weeks) ‐ assuming complete correlation between twins/triplets · women with multiple pregnancy
The intervention showed no clear difference in very preterm birth (less than 34 weeks) ‐ assuming complete… (low certainty).
1 finding from 1 review