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

Table 3 Predictors of asexual parasitaemia 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
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
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
<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
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
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
Rainfall in the 6 months before interview (per cm)	0.000272	0.6653	1.000 (0.999–1.002)

ISSN: 1475-2875