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

Mharakurwa et al. Malaria Journal 2004 3:35   doi:10.1186/1475-2875-3-35