Table 2.
Factors associated with malaria incidence
| Risk factor | Categories | Relative Risk* (95% CI) | p-value |
|---|---|---|---|
| Season |
August-October |
1.0 (reference) |
- |
| February-March |
1.03 (0.92-1.16) |
0.56 |
|
| November-January |
1.28 (1.14-1.43) |
<0.001 |
|
| April-July |
1.26 (1.14-1.40) |
<0.001 |
|
| Year |
2008 |
1.0 (reference) |
- |
| 2009 |
1.15 (0.97-1.36) |
0.10 |
|
| 2010 |
1.42 (1.11-1.82) |
0.005 |
|
| 2011 |
1.52 (1.10-2.09) |
0.01 |
|
| Age | 10- < 18 months |
1.0 (reference) |
- |
| 18- < 24 months |
1.05 (0.92-1.19) |
0.48 |
|
| 24- < 30 months |
1.09 (0.91-1.30) |
0.34 |
|
| 30- < 36 months |
0.97 (0.79-1.19) |
0.77 |
|
| 36- < 42 months |
0.78 (0.61-1.00) |
0.05 |
|
| 42- < 48 months | 0.64 (0.48-0.86) | 0.003 |
Note: CI, confidence interval.