Table 4

Minimum community-based incidence rates of admitted malaria (total and severe) cases per 1,000 child years at risk, by year of study

1st June 2003–31th may 2004

1st June 2004–31th may 2005

Age group

N° of cases/CYAR

Rate per 1000 CYAR

95% CI

N° of cases/CYAR

Rate per 1000 CYAR

95% CI

Total malaria cases

<1 month

0/155

0

-

1/153

6.5

0.9–46.4

1–<6 m

65/800

81.2

63.7–103.6

14/764

18.1

10.7–30.5

6–<12 m

184/889

207.0

179.2–239.2

66/890

74.1

58.2–94.4

1–<2 y

304/1626

187.0

167.1–209.2

169/1731

97.6

84.0–113.5

2–<3 y

199/1486

133.9

116.6–153.9

134/1605

83.5

70.5–98.9

3–<4 y

98/1504

65.2

53.5–79.4

67/1494

44.8

35.3–57.0

4–<5 y

70/1499

46.7

36.9–59.0

34/1521

22.3

16.0–31.3

5–<10 y

80/6812

11.7

9.4–14.6

51/7100

7.2

5.5–9.5

10–<15 y

12/5342

2.2

1.3–4.0

12/5666

2.1

1.2–3.7

Severe malaria cases

<1 month

0/155

0

-

0/153

0

-

1–<6 m

22/803

27.4

18.0–41.6

6/774

7.7

3.5–17.2

6–<12 m

51/898

56.8

43.1–74.7

19/894

21.3

13.6–33.3

1–<2 y

60/1644

36.5

28.3–47.0

42/1741

24.1

17.8–32.6

2–<3 y

55/1497

36.8

28.2–47.9

30/1614

18.6

13.0–26.6

3–<4 y

30/1509

19.9

14.9–28.4

22/1498

14.7

9.7–22.3

4–<5 y

32/1502

21.3

15.1–30.1

13/1523

8.5

5.0–14.7

5–<10 y

27/6816

4.0

2.7–5.8

19/7102

2.7

1.7–4.2

10–<15 y

2/5343

0.4

0.1–1.5

6/5667

1.1

0.5–2.4

CYAR: child years at risk

95% CI: 95% confidence interval

Bassat et al. Malaria Journal 2008 7:37   doi:10.1186/1475-2875-7-37