Stable malaria incidence despite scaling up control strategies in a malaria vaccine-testing site in Mali

Malaria Journal

Table 4 Malaria Incidence rate by year and per transmission season

Years	Transmission season**	Number of cases	Person-year	Incidence rate	*IRR (95% CI)	p
2009***	High transmission season	276	157	1.7		Ref
2010	Overall	456	324	1.4
	Low transmission season	32	115	0.3
	High transmission season	424	208	2	1.15 (0.99–1.35)	0.05
2011	Overall	458	352	1.3
	Low transmission season	58	149	0.4
	High transmission season	400	202	1.9	1.12 (0.96–1.31)	0.11
2012	Overall	672	335	2
	Low transmission season	25	141	0.2
	High transmission season	647	196	3.3	1.87 (1.62–2.16)	<0.001
2013	Low transmission season	46	192	0.2

*IRR = Incidence rate ratio for high transmission season; 95% CI is 95% confidence interval.
**Transmission season; High transmission season was from June-December (rainy season) and low transmission season was from January-May (dry season).
***2009 high transmission season was used as reference (Ref) in estimating IRR for other years during high transmission season.

ISSN: 1475-2875