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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)

From: Routine delivery of artemisinin-based combination treatment at fixed health facilities reduces malaria prevalence in Tanzania: an observational study

Variable Estimate p-value Adjusted odds ratio (95% confidence interval)
Year of survey    
 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    
 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    
 <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    
 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    
 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    
 Rainfall in the 6 months before interview (per cm) −0.00075 0.6850 0.999 (0.996–1.003)