Question · asked by 1 review
Oral betamimetic vs placebo: Preterm birth less than 34 weeks' gestation
- Population
- women with a twin pregnancy
- Intervention
- Oral betamimetic
- Comparison
- placebo
- Outcome
- Preterm birth less than 34 weeks' gestation
Oral betamimetic showed no clear difference in very preterm birth (less than 34 weeks' gestation) compared with placebo (low certainty).
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Oral betamimetic vs placebo Very preterm birth (less than 34 weeks' gestation) · pregnant 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). 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 |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Prophylactic oral betamimetics for reducing preterm birth in women with a twin pregnancy 2015 · Cochrane Headline outcomes only | Not reported | Not extracted | Not assessed |
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.