Table 3. Age-specific incidence of clinical malaria episodes parasitemia threshold for malaria case definition: >0 parasites/µl during high and low seasons.

Age group (years)	Number of children	Number of visits	Number of episodes	Total p-yrs* at risk	Incidence rate (95% CI) (per p-yr at risk)	Cumulative incidence
PASSIVE SURVEILLANCE
[>0–1]	245	1738	340	192.4	1.8 (1.6, 2.0)	83.6
[>1–2]	201	1287	291	176.9	1.6 (1.5, 1.8)	69.1
[>2–3]	225	1121	267	200.8	1.3 (1.2, 1.5)	67.9
[>3–4]	219	863	169	205.2	0.8 (0.7, 1.0)	41.6
[>4–5]	199	733	141	185.1	0.8 (0.6, 0.9)	55.9
Total	1089	5742	1208	960.4	1.3 (1.2, 1.3)	67.4
ACTIVE SURVEILLANCE
[0–1]	131	11117	243	95.5	2.5 (2.2, 2.9)	93.0
[>1–2]	103	10244	230	85.1	2.7 (2.4, 3.1)	89.6
[>2–3]	113	11733	260	92.7	2.8 (2.5, 3.2)	94.0
[>3–4]	115	12388	215	97.5	2.2 (1.9, 2.5)	80.7
[>4–5]	93	9797	123	83.3	1.5 (1.2, 1.8)	71.4
Total	555	55279	1071	454.1	2.4 (2.2, 2.5)	86.2