Opioids vs placebo: Relief of pain
Opioid showed no clear difference in adequate pain relief as reported by the woman (5 to 8 hours) compared with placebo (low certainty).
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Opioid vs placebo Adequate pain relief as reported by the woman (5 to 8 hours) · women who have given birth vaginally, requiring analgesia for after‐birth pains. Opioid showed no clear difference in adequate pain relief as reported by the woman (5 to 8 hours) compared with placebo (low certainty). Relief of pain due to uterine cramping/involution after birth (2020) · Cochrane Headline outcomes only | RR 1.26 [0.99, 1.61] | 5 studies · 299 participants | Low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Relief of pain due to uterine cramping/involution after birth 2020 · Cochrane Headline outcomes only | Not reported | list not extracted yet | Not assessed |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
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.