Table 3 Associations between age and seasonality the incidence of malaria and non-malaria fever.
Incidence of malaria | ||||||
|---|---|---|---|---|---|---|
Category | Group | Episodes | Person years | Incidence | IRR* (95% CI) | p-value |
Age | 4-5 years | 358 | 394 | 0.91 | 1.0 (reference) | - |
6-7 years | 303 | 418 | 0.72 | 0.85 (0.66-1.10) | 0.22 | |
8-10 years | 264 | 454 | 0.58 | 0.64 (0.50-0.84) | 0.001 | |
Season | Mar-Apr + Jul-Dec | 439 | 856 | 0.51 | 1.0 (reference) | - |
Jan-Feb + May-Jun | 486 | 411 | 1.18 | 2.52 | < 0.001 | |
Non-malaria fever | ||||||
Age | 4-5 years | 857 | 394 | 2.18 | 1.0 (reference) | - |
6-7 years | 693 | 418 | 1.66 | 0.75 (0.64-0.87) | < 0.001 | |
8-10 years | 683 | 454 | 1.5 | 0.66 (0.57-0.77) | < 0.001 | |
Season | Rest of the year | 1682 | 1048 | 1.61 | 1.0 (reference) | - |
May-Jun | 551 | 219 | 2.52 | 1.57 (1.40-1.77) | < 0.001 | |