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Table 1 Incidence rate ratio (IRR), 95% confidence interval (95%CI), and p-value estimated by Generalized Estimating Equations.

From: Pattern and determinants of hospitalization during heat waves: an ecologic study

  HD RD FF CD
  IRR a (95%CI) p-value IRR a (95%CI) p-value IRR a (95%CI) p-value IRR a (95%CI) p-value
Humidex within heatwaves (°C) 0.96 (0.88 – 1.04) 0.329 1.00 (0.96 – 1.04) 0.929 0.99 (0.92 – 1.07) 0.750 0.98 (0.95 – 1.00) 0.049
Duration of a heatwave (days) 1.16 (1.12 – 1.20) 0.000 1.05 (1.03 – 1.07) 0.000 0.99 (0.96 – 1.03) 0.563 1.00 (0.99 – 1.01) 0.470
Dummy variable (see text) 0.17 (0.01 – 5.75) 0.327 1.03 (0.23 – 4.72) 0.969 0.53 (0.02 – 13.1) 0.700 0.38 (0.14 – 0.98) 0.045
  1. HD = heat disease; RD = respiratory disease; FF = fractures of femur; CD = circulatory disease
  2. a adjusted for day of week