Question · asked by 1 review
All routine Doppler ultrasound vs no Doppler ultrasound: Gestational age (preterm birth < 37 weeks)
- Population
- Pregnant women in unselected or low‐risk populations.
- Intervention
- All routine Doppler ultrasound
- Comparison
- no Doppler ultrasound
- Outcome
- Gestational age (preterm birth < 37 weeks)
All routine Doppler ultrasound showed no clear difference in preterm birth (before 37 weeks) compared with no Doppler ultrasound (high certainty).
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
All routine Doppler ultrasound vs no Doppler ultrasound Preterm birth (before 37 weeks) · Pregnant women in unselected or low‐risk populations. All routine Doppler ultrasound showed no clear difference in preterm birth (before 37 weeks) compared with no Doppler ultrasound (high certainty). Fetal and umbilical Doppler ultrasound in normal pregnancy (2015) · Cochrane Headline outcomes only | RR 1.02 [0.86, 1.21] | 4 studies · 12162 participants | High |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Fetal and umbilical Doppler ultrasound in normal 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.