| Quality assessment | No of patients | Effect | Quality | Importance | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No of studies | Design | Risk of bias | Inconsistency | Indirectness | Imprecision | Other considerations | Surgery | No surgery | Relative (95% CI) | Absolute | ||
| Stillbirth (before diagnosis) (follow-up from years 1977 to 2010; assessed with: number of cases) | ||||||||||||
| 1 | observational studies | Seriousa | no serious inconsistency | no serious indirectness | Seriousb | None |
12/576 (2.1%) | 0.2% | RR 7.52 (0.96 to 59.11) | 13 more per 1000 (from 0 fewer to 116 more) |
⊕◯◯◯ VERY LOW | IMPORTANT |
Downgraded by 1 increment if the majority of the evidence was at high risk of bias, and downgraded by 2 increments if the majority of the evidence was at very high risk of bias (outcome reporting bias)
Downgraded by 1 increment if the confidence interval crossed one MID or by 2 increments if the confidence interval crossed both MIDs
From: Evidence review for pregnancy
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.