Meta-regression for case fatality and near-miss events among abortion-related hospital admissions
| Outcome and study group | Number of studies | % with outcome (95% CI) | Crude OR (95% CI) | P values | Adjusted OR (95% CI)* | P values* |
| Case fatality | Adjusted R2=12.5% | |||||
| Median year of study | ||||||
| 1990–1995 | 10 | 2.6 (0.9–5.1) | 1 | 1 | ||
| 1996–2008 | 33 | 0.9 (0.6–1.4) | 0.41 (0.06 to 2.68) | 0.76 (0.12 to 4.61) | ||
| 2009–2013 | 21 | 3.1 (1.5–5.1) | 1.17 (0.16 to 8.56) | 0.31 | 1.63 (0.25 to 10.79) | 0.56 |
| Type of abortion | ||||||
| All/unspecified abortion | 16 | 0.2 (0–0.5) | 1 | 1 | ||
| Spontaneous+induced | 11 | 0.5 (0.2–1.0) | 1.73 (0.25 to 11.88) | 1.73 (0.25 to 11.88) | ||
| Induced only | 41 | 4.1 (2.5–6.1) | 9.68 (2.27 to 41.27) | 0.005 | 9.68 (2.27 to 41.27) | 0.005 |
| Region | ||||||
| Africa | 39 | 1.8 (1.2–2.6) | 1 | 1 | ||
| Asia | 22 | 2.1 (1.3–3.1) | 1.62 (0.42 to 6.21) | 1.05 (0.27 to 4.05) | ||
| Latin America | 7 | 0 (0–0.5) | 0.08 (0.01 to 0.66) | 0.03 | 0.16 (0.02 to 1.52) | 0.26 |
| Sampling strategy | ||||||
| Facility | 54 | 2.7 (1.9–3.6) | 1 | 1 | ||
| Population | 10 | 0.2 (0.1–0.4) | 0.14 (0.02 to 0.81) | 0.03 | 0.22 (0.03 to 1.83) | 0.16 |