Skip to main content

Advertisement

Table 3 Regression analysis between log(ntr) and explanatory variables including log(Nim), log(f20° ), and log(GDP )

From: Quantifying the risk of local Zika virus transmission in the contiguous US during the 2015–2016 ZIKV epidemic

  Model 1 Model 2 Model 3
log(Nim) 0.72 (0.69, 0.74) 0.48 (0.45, 0.51) 0.49 (0.46, 0.52)
log(f20°) 2.18 (1.89, 2.48) 3.40 (3.01, 3.78)  
log(GDP) − 13.29 (− 14.20, − 12.38)   
R squared 74.9% 57.9% 47.5%
  1. In model 1, all three explanatory variables log(Nim), log(f20°), and log(GDP) are included. Model 2 includes log(Nim) and log(f20° ). Model 3 only includes log(Nim). For each model, we report the regression coefficient (95% CI) for each of the explanatory variables along with R squared, based on n = 1220 cells
  2. ntr average number of local ZIKV transmissions within each 0.25° × 0.25° cell from January 1, 2015, to December 31, 2016, Nim number of ZIKV importations, f20° fraction of days with temperature higher than 20 °C, GDP gross domestic product per capita in purchasing power parity
  3. ***p < 0.001