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Characteristics of the subjects.
| Characteristic | Case (n = 204) | Control (n = 267) |
|---|---|---|
| Age (mean ± SD) (yr) | 24.9 ± 12.1 | 35.2 ± 12.6 |
| Sex (no. males/no. females) | 94/110 | 124/143 |
| Fever history (mean ± SD) (days) | 45.5 ± 47.7 | |
| Spleen size (mean ± SD) (cm) | 3.80 ± 1.92 | |
| HIV status | Negative | Negative |
