Spearman correlation coefficient (95% confidence intervals) between the monthly incidence of malaria and climate variables in Anhui Province, 1990–2009.

<p>Lx: the lagged months. MaxT: average maximum temperature; T: average temperature; MinT: average minimum temperature; RH: relative humidity; MEI: multivariate El Niño/Southern Oscillation index.</p

Validations of polynomial distributed lag models of malaria incidence in three regions, Anhui Province, China.

<p>The data from January 1990 to December 2007 were used to construct the models, and the data from January 2008 to December 2009 were used for the validation of the models. (A) In northern Anhui Province; (B) In mid Anhui Province; (C) In southern Anhui Province.</p

Lag distribution coefficients of the monthly rainfall (100 mm) with malaria incidence in the three regions of Anhui Province, China during 1990–2009.

**<p>p<0.01.</p>*<p>p<0.05.</p

Polynomial distributed lag time-series regression coefficients of the monthly rainfall associated with malaria incidence in mid and southern Anhui Province, 1990–2009^a.

a<p>Adjusting for auto-correlation; no significant association was found with temperature, humidity and MEI (p>0.10).</p>**<p>p<0.01.</p>*<p>p<0.05.</p