Variable | Estimate | p-value | Adjusted odds ratio (95% confidence interval) |
---|---|---|---|
Year of survey | Â | Â | Â |
 2001 | Referent | Referent | Referent |
 2002 | 0.1457 | 0.0966 | 1.157 (0.974–1.374) |
 2004 | 0.0978 | 0.2319 | 1.103 (0.939–1.294) |
 2005 | −0.3882 | <0.0001 | 0.678 (0.480–0.793) |
 2006 | −0.4058 | <0.0001 | 0.666 (0.566–0.785) |
Demographic and health surveillance system site | Â | Â | Â |
 KU | Referent | Referent | Referent |
 Rufiji | 0.3092 | <0.0001 | 1.362 (1.174–1.580) |
Implementation of artesunate-sulphadoxine-pyrimethamine | −0.3366 | <0.0001 | 0.714 (0.619–0.823) |
Age group | Â | Â | Â |
 <1 | 0.8873 | <0.0001 | 2.428 (2.059–2.864) |
 1- < 5 years | 1.7099 | <0.0001 | 5.529 (5.106–5.986) |
 5–15 years | 1.5928 | <0.0001 | 4.918 (4.580–5.280) |
 >15 years | Referent | Referent | Referent |
Bed net use previous night | Â | Â | Â |
 No net use | Referent | Referent | Referent |
 Used untreated net | −0.2893 | <0.0001 | 0.749 (0.689–0.814) |
 Uses insecticide treated net | −0.2590 | <0.0001 | 0.772 (0.696–0.856) |
Wealth quintile | Â | Â | Â |
 Poorest | 0.5331 | <0.0001 | 1.704 (1.520–1.911) |
 Less poor | 0.4862 | <0.0001 | 1.626 (1.453–1.820) |
 Middle | 0.4816 | <0.0001 | 1.619 (1.453–1.804) |
 More rich | 0.3436 | <0.0001 | 1.410 (1.266–1.571) |
 Least poor | Referent | Referent | Referent |
Rainfall | Â | Â | Â |
 Rainfall in the 6 months before interview (per cm) | 0.000272 | 0.6653 | 1.000 (0.999–1.002) |