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Table 5 Relationship between climate and malaria incidence in Tak Province, 2012–2015

From: Spatiotemporal epidemiology, environmental correlates, and demography of malaria in Tak Province, Thailand (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
  1. 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