Table 4.

Risk of clinically diagnosed malaria in hyperendemic and mesoendemic catchments during the peak malaria season (February – May).

Year	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
Hyperendemic population (elev. <600 m)	21306	21925	22643	34298	35733	27647	25578	22651	27174	27989
Mesoendemic population (elev. ≥600 m)	65664	66497	69788	75761	88181	90910	93721	48244	96057	61625
Malarial RR (95% CI)	1.9 (1.72 – 1.99)	1.7 (1.57 – 1.81)	5.3 (5.09 – 5.55)	2.8 (2.67 – 2.88)	1.1 (1.09 – 1.17)	5.0 (4.82 – 5.12)	2.0 (1.89 – 2.04)	2.7 (2.56 – 2.75)	1.6 (1.55 – 1.69)	3.3 (3.06 – 3.48)
P	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001