Table 2.
Associations With Plasmodium falciparum Infections Detected by RDT Among Enrolled Students at Baselinea
| Predictor | n (%)b | Prevalence Ratio (95% CI) |
|---|---|---|
| School | ||
| Bvumbwe | 16 (8.7) | Ref. |
| Ngowe | 56 (30.1) | 3.5 (2.1–5.8) |
| Maseya | 91 (49.2) | 5.7 (3.5–9.2) |
| Makhuwira | 96 (64.4) | 7.4 (4.6–12.0) |
| Season | ||
| Rainy | 159 (43.7) | Ref. |
| Dry | 100 (29.4) | 0.7 (0.6–0.8) |
| Age, y | ||
| 5 to 10 | 89 (33.1) | Ref. |
| 11 to 15 | 170 (39.1) | 1.2 (1.0–1.5) |
| Sex | ||
| Male | 141 (43.8) | Ref. |
| Female | 118 (30.9) | 0.7 (0.6–0.9) |
| Anemicc | ||
| No | 193 (32.3) | Ref. |
| Yes | 65 (61.3) | 1.9 (1.6–2.3) |
| Fever last 48 hd | ||
| No | 170 (34.1) | Ref. |
| Yes | 84 (43.8) | 1.3 (1.0–1.6) |
| Recent medicatione | ||
| No | 193 (33.6) | Ref. |
| Yes | 62 (51.2) | 1.5 (1.2–1.9) |
| Slept under bed net last night | ||
| No | 144 (45.3) | Ref. |
| Yes | 109 (35.3) | 0.8 (0.6–0.9) |
Abbreviations: RDT, rapid diagnostic test; Ref., reference.
Log-binomial models for bivariate association between covariates and RDT positivity at baseline.
Number and percent of children with a positive RDT result within each strata; children with a positive RDT result at baseline were treated and children with a negative RDT result at baseline were not treated.
Defined as hemoglobin less than 11.0 g/dL.
Fever in the last 48 hours reported or measured temperature ≥37.5ºC.
Recent treatment defined as student or parent reported receipt of an effective antimalarial drug in the 2 weeks preceding the interview.