Observation | Pathological episodes | Malaria episodes | Malaria fever in the standard population of 1000 persons | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Age groups (years) | N | Person-day | N | Incidence per person-year (95% CI) | N | Attributable fraction (95% CI) | Incidence per person-year | Population (%) | Incidence per year (95% CI) | |
R0 | 0–1 | 390 | 1,532 | 66 | 15.7 (8.8–25.4) | 55 | 22.5 (14.2–33.9) | 5.4 (3.4–8.1) | 7.4% | 397 (358–438) |
2–4 | 1,008 | 3,909 | 89 | 8.3 (3.5–15.8) | 73 | 24.6 (15.8–36.3) | 2.3 (1.5–3.4) | 9.8% | 225 (197–256) | |
5–9 | 1,443 | 5,243 | 43 | 3.0 (0.4–8.0) | 32 | 9.1 (4.1–17.1) | 0.6 (0.3–1.2) | 17.5% | 111 (91–133) | |
10–19 | 1,701 | 5,919 | 21 | 1.3 (0.0–5.6) | 7 | 1.0 (0.0–5.6) | 0.1 (0.0–0.3) | 21.4% | 13 (07–22) | |
20–39 | 2,180 | 7,901 | 59 | 2.7 (0.4–8.0) | 31 | 4.7 (1.4–11.0) | 0.2 (0.1–0.5) | 19.9% | 43 (31–58) | |
> = 40 | 2,849 | 10,469 | 56 | 2.0 (0.1–6.4) | 27 | 4.8 (1.4–11.0) | 0.2 (0.0–0.4) | 24.0% | 40 (29–54) | |
Total | 9,571 | 34,973 | 334 | 3.5 (0.6–8.8) | 225 | 66.7 (51.5–84.5) | 0.7 (0.5–0.9) | 100.0% | 696 (645–750) | |
R1 | ||||||||||
0–1 | 572 | 2,301 | 123 | 19.5 (11.8–30.3) | 106 | 43.0 (30.7–57.3) | 6.8 (4.9–9.2) | 7.4% | 505 (461–551) | |
2–4 | 1,371 | 5,534 | 95 | 6.3 (2.2–13.1) | 80 | 30.3 (20.2–42.8) | 2.0 (1.3–2.8) | 9.8% | 196 (169–225) | |
5–9 | 2,245 | 8,558 | 74 | 3.2 (0.6–8.8) | 39 | 10.9 (5.1–19.0) | 0.5 (0.2–0.8) | 17.5% | 81 (64–101) | |
10–19 | 2,484 | 9,080 | 45 | 1.8 (0.1–6.4) | 22 | 4.9 (1.4–11.0) | 0.2 (0.1–0.4) | 21.4% | 42 (30–57) | |
20–39 | 3,468 | 12,713 | 67 | 1.9 (0.1–6.4) | 23 | 3.6 (0.8–9.5) | 0.1 (0.0–0.3) | 19.9% | 21 (13–31) | |
> = 40 | 2,320 | 8,816 | 46 | 1.9 (0.1–6.4) | 14 | 0.7 (0.0–4.7) | 0.0 (0.0–0.2) | 24.0% | 07 (03–14) | |
Total | 12,460 | 47,002 | 450 | 3.6 (0.6–8.8) | 284 | 93.4 (75.1–113.9) | 0.7 (0.6–0.9) | 100.0% | 725 (673–780) | |
R2 | ||||||||||
0–1 | 566 | 2,441 | 92 | 13.8 (7.3–22.9) | 80 | 31.1 (21.1–44.0) | 4.7 (3.1–6.6) | 7.4% | 344 (309–382) | |
2–4 | 1,210 | 5,143 | 97 | 6.9 (2.5–13.7) | 82 | 25.9 (16.6–37.5) | 1.8 (1.2–2.7) | 9.8% | 180 (155–208) | |
5–9 | 2,260 | 8,999 | 58 | 2.4 (0.2–7.2) | 33 | 11.0 (5.5–19.7) | 0.4 (0.2–0.8) | 17.5% | 78 (62–97) | |
10–19 | 2,398 | 9,110 | 38 | 1.5 (0.1–6.4) | 16 | 2.6 (0.4–8.0) | 0.1 (0.0–0.3) | 21.4% | 22 (14–33) | |
20–39 | 3,000 | 11,561 | 52 | 1.6 (0.1–6.4) | 21 | 2.7 (0.4–8.0) | 0.1 (0.0–0.3) | 19.9% | 17 (10–27) | |
> = 40 | 2,213 | 8,693 | 32 | 1.3 (0.0–5.6) | 15 | 0.9 (0.0–4.7) | 0.0 (0.0–0.2) | 24.0% | 09 (04–17) | |
Total | 11,647 | 45,947 | 369 | 2.9 (0.4–8.0) | 247 | 74.2 (58.1–92.9) | 0.6 (0.5–0.7) | 100.0% | 589 (542–639) |