Table 2 Distribution of significant factors in immune versus susceptible infants
Characteristic | Level | Only-asymptomatic n = 87 n (%) | Only-symptomatic and alternating n = 718 n (%) | p-value |
|---|---|---|---|---|
Reported fever before first infection | Yes | 38 (43.7) | 399 (55.6) | 0.035 |
No | 49 (56.3) | 319 (44.4) | Â | |
Illness before first infection | Yes | 34 (39.1) | 434 (60.4) | < 0.001 |
No | 53 (60.9) | 284 (39.6) | Â | |
Anti-malarial use before first infection | Yes | 3 (3.4) | 343 (47.8) | < 0.001 |
No | 84 (96.6) | 375 (52.2) | Â | |
Socio-economic status | Least poor | 20 (23.0) | 68 (9.5) | < 0.001 |
Less poor | 19 (21.8) | 124 (17.3) | Â | |
Poor | 20 (23.0) | 160 (22.3) | Â | |
Poorer | 17 (19.5) | 167 (23.3) | Â | |
Most poor | 11 (12.6) | 199 (27.7) | Â | |
IPTp, DOTs | Yes | 73 (90.1) | 660 (95.8) | 0.024 |
No | 8 (9.9) | 29 (4.2) | Â | |
Overall ITN use during pregnancy | Yes | 52 (61.2) | 345 (48.6) | 0.028 |
No | 33 (38.8) | 365 (51.4) | Â | |
ITN use during pregnancy in rural areas | Yes | 43 (59.7) | 299 (46.6) | 0.035 |
No | 29 (40.3) | 342 (53.4) | Â | |
Placental malaria overall | Negative | 58 (66.7) | 436 (60.7) | 0.010 |
Past | 23 (26.4) | 227 (31.6) | Â | |
Chronic | 0 (0.0) | 38 (5.3) | Â | |
Acute | 6 (6.9) | 17 (2.4) | Â | |
Placental malaria in rural areas | Negative | 51 (68.9) | 398 (61.4) | 0.021 |
Past | 18 (24.3) | 199 (30.7) | Â | |
Chronic | 0 (0.0) | 35 (5.4) | Â | |
Acute | 5 (6.8) | 16 (2.5) | Â |