Findings

What do systematic reviews say?

82 questions · 83 findings · 9 reviews · Pregnancy and Childbirth

No studies found 11 · 13.3%GRADE not reported 3 · 3.6%Very low 15 · 18.1%Low 31 · 37.3%Moderate 16 · 19.3%High 7 · 8.4%

Preterm birth · women with a twin pregnancy

Oral betamimetic showed no clear difference in preterm birth (less than 37 weeks' gestation) compared with placebo (low certainty).

1 finding from 1 review

Prophylactic oral betamimetics for reducing preterm birth in women with a twin pregnancy 2015 · Cochrane Headline outcomes only
RR 0.85 [0.65, 1.1]
4 studies · 276 participants
Low

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

Prophylactic oral betamimetics for reducing preterm birth in women with a twin pregnancy 2015 · Cochrane Headline outcomes only
RR 0.47 [0.15, 1.5]
1 study · 144 participants
Low