Figure 1.
Spatial and temporal distribution of malaria in Anhui Province, China from 1990 to 2009.
(A) Monthly malaria incidence and rainfall in northern Anhui Province; (B) Monthly malaria incidence and rainfall in mid Anhui Province; (C) Monthly malaria incidence and rainfall in southern Anhui Province; (D) Average annual malaria incidence at the county level in Anhui Province in the 1990s and 2000s.
Table 1.
Spearman correlation coefficient (95% confidence intervals) between the monthly incidence of malaria and climate variables in Anhui Province, 1990–2009.
Table 2.
Polynomial distributed lag time-series regression coefficients of the monthly rainfall and relative humidity associated with malaria incidence in northern Anhui Province, 1990–2009a.
Table 3.
Polynomial distributed lag time-series regression coefficients of the monthly rainfall associated with malaria incidence in mid and southern Anhui Province, 1990–2009a.
Table 4.
Lag distribution coefficients of the monthly rainfall (100 mm) with malaria incidence in the three regions of Anhui Province, China during 1990–2009.
Figure 2.
Validations of polynomial distributed lag models of malaria incidence in three regions, Anhui Province, China.
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.
Figure 3.
Study areas in Anhui Province, China.
Northern Anhui Province includes 22 counties in the north of the Huai River. Mid Anhui Province includes 32 counties between the Huai River and the Yangtze River. Southern Anhui Province includes 24 counties in the south of the Yangtze River.