Question · asked by 1 review

Caffeinated (experimental group) vs decaffeinated group (control group): Preterm birth

Population
Pregnant women recruited before 20 weeks' gestation
Intervention
Caffeinated (experimental group)
Comparison
decaffeinated group (control group)
Outcome
Preterm birth

Caffeinated (experimental group) showed no clear difference in preterm birth compared with decaffeinated group (control group) (low certainty).

What each review found

Include earlier review versions
FindingEffectStudiesGRADE certainty
Caffeinated (experimental group) vs decaffeinated group (control group)
Preterm birth · Pregnant women recruited before 20 weeks' gestation
Caffeinated (experimental group) showed no clear difference in preterm birth compared with decaffeinated group (control group) (low certainty).
Effects of restricted caffeine intake by mother on fetal, neonatal and pregnancy outcomes (2015) · Cochrane Headline outcomes only
RR 0.81 [0.48, 1.37]1 study · 1153 participantsLow

Findings are shown side by side, never pooled across reviews.

The reviews

ReviewSearched up toIncluded studiesAMSTAR 2
Effects of restricted caffeine intake by mother on fetal, neonatal and pregnancy outcomes
2015 · Cochrane Headline outcomes only
Not reportedNot extractedNot 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.