Table 2 Factors associated with microscopic parasitaemia at enrolment
Variable | Categories | Parasitaemia n (%) | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|---|---|
RR (95% CI) | p-value | aRRa (95% CI) | p-value | |||
Wealth index categories | Least poor | 98 (40.2) | Reference | – | Reference | – |
Middle | 133 (52.8) | 1.31 (1.08–1.59) | 0.005 | 1.15 (0.95–1.39) | 0.15 | |
Poorest | 154 (59.9) | 1.49 (1.24–1.79) | < 0.001 | 1.29 (1.07–1.55) | 0.008 | |
Type of house constructionb | Modern | 61 (35.5) | Reference | – | Reference | – |
Traditional | 324 (55.8) | 1.57 (1.27–1.95) | < 0.001 | 1.41 (1.14–1.74) | 0.002 | |
Whether airbricks were present | Present | 79 (37.8) | Reference | – | Reference | – |
Not present | 306 (56.3) | 1.49 (1.23–1.80) | < 0.001 | 1.09 (0.86–1.39) | 0.48 | |
Number of windows present | ≥ 2 windows | 65 (45.1) | Reference | – | Reference | – |
1 window | 224 (50.1) | 1.11 (0.91–1.36) | 0.31 | 0.97 (0.79–1.18) | 0.73 | |
No windows | 96 (59.3) | 1.31 (1.05–1.64) | 0.02 | 1.06 (0.84–1.32) | 0.63 | |
Level of education | O level or beyond | 86 (46.2) | Reference | – | Reference | – |
None or primary | 299 (52.7) | 1.14 (0.96–1.36) | 0.14 | 1.13 (0.95–1.34) | 0.17 | |
Bed net ownership before enrolment | LLIN | 285 (49.2) | Reference | – | Reference | – |
Untreated | 62 (56.9) | 1.16 (0.96–1.39) | 0.12 | 1.07 (0.90–1.28) | 0.45 | |
No bed net | 38 (58.5) | 1.19 (0.95–1.48) | 0.13 | 1.03 (0.83–1.28) | 0.77 | |
Categories of gravidity | Multigravida | 145 (38.0) | Reference | – | Reference | – |
Secundigravida | 108 (57.8) | 1.52 (1.27–1.82) | < 0.001 | 1.53 (1.28–1.82) | < 0.001 | |
Primigravida | 132 (71.7) | 1.89 (1.62–2.21) | < 0.001 | 1.84 (1.58–2.16) | < 0.001 | |