. Author manuscript; available in PMC: 2016 Jun 10.

Published in final edited form as: Euro Surveill. 2016 May 19;21(20):10.2807/1560-7917.ES.2016.21.20.30234. doi: 10.2807/1560-7917.ES.2016.21.20.30234

Table 2. Relative contribution of each covariate in explaining the global environmental suitability of chikungunya virus and 95% confidence interval, 1952–May 2015.

Variable	Mean (95% confidence interval)
Aedes aegypti	46.16 (43.45–48.74)
EVI mean and range	33.37 (29.71–36.94)
Urban accessibility	7.42 (6.52–8.50)
Ae. albopictus	6.70 (5.78–7.60)
LST mean and range	5.98 (4.83–6.90)
Urbanisation	0.30 (0.15–0.70)

EVI: enhanced vegetation index; LST: land surface temperature.