Table 1.
Background prevalence of malaria parasitaemia, malaria disease, fever, and routine malaria diagnosis, stratified by transmission intensity and age categories
|
Very high transmission districts n,% (95% CI) |
Moderate-to high transmission districts n,% (95% CI) |
All districts n,% (95% CI) |
|
| All age groups | N = 578 | N = 907 | N = 1485 |
| Malaria parasitaemia | 203, 35.1 (31.0–39.3) | 210, 23.2 (19.9–26.4) | 413, 27.8 (25.0–30.6) |
| Malaria disease* | 175, 30.3 (26.3–34.3) | 184, 20.3 (17.1–23.5) | 359, 24.2 (21.5–26.8) |
| Fever prevalence | 477, 82.5 (78.6–86.5) | 699, 77.1 (73.6–80.5) | 1176, 79.2 (76.6–81.8) |
| Routine malaria diagnosis | 423, 73.2 (68.1–78.3) | 624, 68.8 (64.0–73.6) | 1047, 70.5 (67.0–74.1) |
| Patients <5 years | N = 206 | N = 288 | N = 494 |
| Malaria parasitaemia | 111, 53.9 (48.6–59.2) | 106, 36.8 (29.6–44.0) | 217, 43.9 (39.0–48.9) |
| Malaria disease* | 104, 50.5 (44.9–56.1) | 98, 34.0 (26.8–41.2) | 202, 40.9 (35.9–45.9) |
| Fever prevalence | 190, 92.2 (88.2–96.3) | 248, 86.1 (82.2–90.0) | 438, 88.7 (85.8–91.5) |
| Routine malaria diagnosis | 170, 82.5 (76.3–88.8) | 218, 75.7 (69.8–81.6) | 388, 78.5 (74.2–82.8) |
| Patients ≥5 years | N = 372 | N = 619 | N = 991 |
| Malaria parasitaemia | 92, 24.7 (20.1–29.3) | 104, 16.8 (13.7–19.9) | 196, 19.8 (17.1–22.4) |
| Malaria disease* | 71, 19.1 (15.2–23.0) | 86, 13.9 (10.9–16.9) | 157, 15.8 (13.5–18.2) |
| Fever prevalence | 287, 77.2 (71.6–82.7) | 451, 72.9 (68.3–77.4) | 738, 74.5 (71.0–78.0) |
| Routine malaria diagnosis | 253, 68.0 (61.8–74.2) | 406, 65.6 (60.0–71.2) | 659, 66.5 (62.3–70.7) |
* Defined as any malaria parasitaemia on expert slide examination in patient with fever