Table 1 ABO phenotype by placental malaria category and parity group
Parity | Placental malaria | Phenotype N (%) | OR 95% CI O/non O | ||||
|---|---|---|---|---|---|---|---|
Type | No | A | B | AB | O | ||
Primiparae | Active | 41 | 6 (37) | 6 (30) | 0 (0) | 29 (58) | 2.99, 1.24–7.25 |
Past | 15 | 4 (25) | 4 (20) | 2 (100) | 5 (10) | 0.3, 0.1–1.0 | |
None | 33 | 6 (37) | 10 (50) | 0 (0) | 16 (32) | 0.65, 0.27–1.55 | |
Total | 88 | 16 | 20 | 2 | 50 | ||
Multiparae | Active | 33 | 6 (27) | 11 (29) | 2 (50) | 14 (27) | 0.75, 0.33–1.7 |
Past | 27 | 8 (36) | 10 (31) | 0 (0) | 9 (17) | 0.47, 0.19–1.15 | |
None | 50 | 8 (36) | 11 (34) | 2 (50) | 29 (56) | 2.22, 1.03–4.78 | |
Total | 110 | 22 | 32 | 4 | 52 | ||