Table 2 Crude cumulative incidence (risk) of AIP over single units of parity
From: Effect of high parity on occurrence of anemia in pregnancy: a cohort study
Parity | hemoglobin level (g/dl) Mean (SD) | AIP cases | Pregnancies | Risk (per 100 pregnancies) | 95% CI |
|---|---|---|---|---|---|
1 | 11.2 (0.9) | 41 | 209 | 19.6 | (14.7, 25.4) |
2-3 | 11.4 (1.0) | 44 | 441 | 10.0 | (6.2, 13.9) |
4-5 | 11.4 (0.9) | 30 | 268 | 11.2 | (9.1, 14.2) |
6-7 | 11.5 (1.0) | 57 | 190 | 30.0 | (26.4, 33.7) |
8-9 | 11.4 (1.0) | 66 | 122 | 54.1 | (49.6, 57.5) |
10 and above | 11.3 (1.0) | 51 | 118 | 43.2 | (40.1, 47.2) |
Total | 11.4 (1.0) | 289 | 1348 | 21.4 | (19.3, 23.7) |