Table 2 Relative risk (RR) and attributable fraction of hospitalizations for CKD associated with ambient high temperature (every 1 °C increase in daily mean temperature in hot season), grouped by three temperature zones
Variable | RR (95% CI) | P-values for difference | Attributable fraction (%) |
|---|---|---|---|
Overall | 1.008 (1.003–1.012) | – | 5.500 (− 13.549 to 20.730) |
Temperature zone | Â | Â | Â |
 Temperate zone | 0.999 (0.985–1.013) | Ref | – |
 Warm-temperate zone | 1.004 (0.996–1.012) | 0.544 | – |
 Sub-tropical zone | 1.011 (1.006–1.017) | 0.120 | 7.124 (− 7.419 to 19.355) |