Table 5.

Relationship between climate and malaria incidence in Tak Province, 2012–2015

Variable	Total cases		P. falciparum		P. vivax
	r	P	r	P	r	P
Rainfall (cm)
Total, no lag	0.33	0.026	0.27	0.066	0.36	0.015
Total, 1-month lag	0.09	0.564	0.04	0.813	0.12	0.438
Total, 2-month lag	− 0.11	0.463	− 0.13	0.384	− 0.10	0.513
Total, 3-month lag	− 0.15	0.322	− 0.14	0.355	− 0.16	0.309
Relative humidity (%)
Minimum	0.19	0.195	0.13	0.382	0.23	0.115
Maximum	0.28	0.056	0.22	0.136	0.31	0.033
Range (Max − Min)	− 0.03	0.832	0.01	0.962	− 0.07	0.663
Average, no lag	0.26	0.076	0.19	0.197	0.30	0.038
Average, 1-month lag	− 0.02	0.871	− 0.06	0.677	0.00	0.981
Average, 2-month lag	− 0.35	0.019	− 0.34	0.021	− 0.34	0.020
Average, 3-month lag	− 0.47	0.001	− 0.41	0.005	− 0.51	< 0.001
Temperature (°C)
Minimum	0.14	0.330	0.08	0.580	0.18	0.225
Maximum	0.09	0.549	0.06	0.663	0.10	0.503
Range (Max − Min)	− 0.14	0.353	− 0.06	0.705	− 0.19	0.201
Median, no lag	0.06	0.670	0.03	0.838	0.08	0.589
Median, 1-month lag	0.38	0.008	0.33	0.024	0.41	0.004
Median, 2-month lag	0.47	0.001	0.39	0.007	0.52	< 0.001
Median, 3-month lag	0.28	0.062	0.20	0.199	0.33	0.025
Average, no lag	0.07	0.619	0.04	0.808	0.09	0.528
Average, 1-month lag	0.38	0.008	0.33	0.024	0.41	0.004
Average, 2-month lag	0.47	0.001	0.39	0.008	0.52	< 0.001
Average, 3-month lag	0.28	0.061	0.20	0.196	0.33	0.025

Climate measurements and parasite incidence were aggregated by month. r and P-values in italic text were those that were significant at alpha level of 0.05