Table 4 Predictors of gametocytaemia in Rufiji and Kilombero-Ulanga (KU) Demographic and Health Surveillance System sites, Tanzania, 2001, 2002, 2004, 2005, 2006 (N = 37,309)
Variable | Estimate | p-value | Adjusted odds ratio (95% confidence interval) |
|---|---|---|---|
Year of survey | Â | Â | Â |
 2001 | Referent | Referent | Referent |
 2002 | 0.0364 | 0.8929 | 1.037 (0.610–1.763) |
 2004 | −0.2546 | 0.2988 | 0.775 (0.480–1.253) |
 2005 | −0.9695 | <0.0001 | 0.379 (0.238–0.604) |
 2006 | −1.2736 | <0.0001 | 0.280 (0.165–0.476) |
Demographic and health surveillance system site | Â | Â | Â |
 KU | Referent | Referent | Referent |
 Rufiji | −0.1957 | 0.3763 | 0.822 (0.533–1.268) |
Implementation of artesunate-sulphadoxine-pyrimethamine | −0.2334 | 0.2961 | 0.792 (0.511–1.227) |
Age group | Â | Â | Â |
 <1 | 1.7143 | <0.0001 | 5.553 (3.376–9.133) |
 1- < 5 years | 2.0611 | <0.0001 | 7.854 (5.886–10.481) |
 5–15 years | 1.0336 | <0.0001 | 2.811 (2.061–3.834) |
 >15 years | Referent | Referent | Referent |
Bed net use previous night | Â | Â | Â |
 No net use | Referent | Referent | Referent |
 Used untreated net | −0.2650 | 0.0732 | 0.767 (0.574–1.025) |
 Uses insecticide treated net | −0.2774 | 0.1478 | 0.758 (0.520–1.103) |
Wealth quintile | Â | Â | Â |
 Poorest | 0.6146 | 0.0013 | 1.849 (1.270–2.691) |
 Less poor | 0.3059 | 0.1289 | 1.358 (0.915–2.015) |
 Middle | 0.5591 | 0.0020 | 1.749 (1.227–2.494) |
 More rich | 0.3651 | 0.0434 | 1.441 (1.011–2.053) |
 Least poor | Referent | Referent | Referent |
Rainfall | Â | Â | Â |
 Rainfall in the 6 months before interview (per cm) | −0.00075 | 0.6850 | 0.999 (0.996–1.003) |