Percentage (95% CI) of deaths attributable to cold and heat, estimated using different cut off points
| Sofia | London | |
|---|---|---|
| Using 10th centile of two week mean temperature, 90th centile of two day mean temperature as cut off points: | ||
| Heat | 0.72 (0.47 to 0.96) | 0.44 (0.33 to 0.56) |
| Cold | 0.67 (0.22 to 1.11) | 1.39 (1.13 to 1.64) |
| Using the V model with common cut off point in both cities: | ||
| Heat | 1.66 (1.19 to 2.13) | 0.82 (0.63 to 1.01) |
| Cold | 5.75 (4.29 to 7.18) | 8.67 (7.82 to 9.52) |