What do systematic reviews say?

2 questions · 2 findings · 1 reviews · Pregnancy and Childbirth

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 2 · 100%Moderate 0 · 0%High 0 · 0%

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