Placental malaria infection by number of SP doses received during pregnancy
| Infection | ≤1 dose (N=87) | 2 doses (N=316) | 3 doses (N=549) | ≥4 doses (N=690) | Combined (1642) | P value* | |||||
| n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | ||
| Past | 8 | 9.2 (4.6 to 17.4) | 40 | 12.7 (9.4 to 16.8) | 45 | 8.2 (6.2 to 10.8) | 52 | 7.5 (5.8 to 9.8) | 145 | 8.8 (7.6 to 10.3) | 0.06 |
| Acute | 2 | 2.3 (0.6 to 8.8) | 8 | 2.5 (1.3 to 5.0) | 8 | 1.5 (0.7 to 2.9) | 12 | 1.7 (1.0 to 3.0) | 30 | 1.8 (1.3 to 2.6) | 0.63 |
| Chronic | 4 | 4.6 (1.7 to 11.7) | 5 | 1.6 (0.7 to 3.8) | 4 | 0.7 (0.3 to 1.9) | 3 | 0.4 (0.1 to 1.3) | 16 | 1.0 (0.6 to 1.6) | 0.01 |
| Overall | 14 | 16.1 (9.7 to 25.4) | 53 | 16.8 (13.0 to 21.3) | 57 | 10.4 (8.1 to 13.2) | 67 | 9.7 (7.7 to 12.2) | 191 | 11.6 (10.2 to 13.3) | 0.004 |
| Active | 6 | 6.9 (3.1 to 14.6) | 13 | 4.1 (2.4 to 7.0) | 12 | 2.2 (1.2 to 3.8) | 15 | 2.2 (1.3 to 3.58) | 46 | 2.8 (2.1 to 3.7) | 0.03 |
*P value describes 2×4 Χ2.