Question · asked by 0 reviews
Vitamin D plus calcium vs no treatment/placebo (no vitamin or minerals): Preterm birth
- Population
- pregnant women
- Intervention
- Vitamin D plus calcium
- Comparison
- no treatment/placebo (no vitamin or minerals)
- Outcome
- Preterm birth
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Vitamin D + calcium vs no treatment/placebo (no vitamin or minerals) Preterm birth · pregnant women Vitamin D supplementation for women during pregnancy (2012) · Cochrane Headline outcomes onlyearlier version CD008873.PUB2, superseded | no estimate extracted | 0 studies · 0 participants | GRADE not reported |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Vitamin D supplementation for women during pregnancy 2019 · Cochrane Headline outcomes only | Not reported | Not extracted | Not assessed |
Related questions
The same intervention and outcome, asked in another population or against another comparator.
- Vitamin D plus calcium vs placebo or no intervention · pregnant women and their infants.. · 1 review
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.