Table 3 Predicted hazard of P. falciparum infection during the malaria transmission season
Factors | Description (n) | % infections (n) | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|---|---|
HR [95% CI] | P value | HR [95% CI] | P value | |||
Asymptomatic infection at the end of dry season | Yes (67) | 68.7 (46) | 3.388 [2.433–4.718] | < 0.0001 | 3.0 [2.149–4.190] | < 0.0001 |
No (613) | 28.5 (175) | Ref. | Â | Ref. | Â | |
Sex | F (383) | 31.3 (120) | 1.155 [0.884–1.509] | 0.29 |  |  |
M (295) | 34.2 (101) | Ref. | Â | Â | Â | |
Age groups (years) | < 5 (129) | 15.5 (20) | Ref. |  | Ref. |  |
5–14 (296) | 33.8 (100) | 2.621 [1.617–4.245] | < 0.0001 | 2.767 [1.704–4.493] | < 0.0001 | |
≥ 15 (253) | 39.9 (101) | 2.917 [1.801–4.724] | < 0.0001 | 3.063 [1.888–4.970] | < 0.0001 | |
Village of residence | J (107) | 30.8 (33) | 1.332 [0.748–2.373] | 0.33 | 1.571 [0.870–2.837] | 0.13 |
K (304) | 25.7 (78) | 1.05 [0.626–1.760] | 0.85 | 1.084 [0.637–1.845] | 0.76 | |
N (73) | 24.7 (18) | Ref. | Â | Â | Â | |
P (196) | 46.9 (92) | 2.255 [1.355–3.751] | 0.0017 | 2.375 [1.407–4.007] | 0.0012 | |
History of fever in the past week | Yes (21) | 38.1 (8) | 1.253 [0.608–2.582] | 0.54 |  |  |
No (647) | 31.7 (205) | Ref. | Â | Â | Â | |
Anaemiaa | No (370) | 32.7 (121) | Ref. | Â | Â | Â |
Mild (155) | 29.0 (45) | 0.861 [0.610–1.217] | 0.40 |  |  | |
Moderate (135) | 33.3 (45) | 1.051 [0.743–1.485] | 0.78 |  |  | |
Severe (10) | 40.0 (4) | 1.549 [0.567–4.235] | 0.39 |  |  | |
Fever at inclusion | Yes (7) | 14.3 (1) | 0.320 [0.044–2.310] | 0.326 |  |  |
No (663) | 32.3 (214) | Ref. | Â | Â | Â | |