Table 2.
Relative risks of daily cause specific mortality associated with non-optimum ambient temperatures in 272 main Chinese cities, 2013-15
| Death causes* | Minimum mortality centile† | Minimum mortality temperature (°C) | Relative risk (95% CI) | |
|---|---|---|---|---|
| Extreme low‡ | Extreme high‡ | |||
| Total | 79.1 | 22.8 | 1.68 (1.57 to 1.81) | 1.16 (1.12 to 1.21) |
| Cardiovascular disease | 80.3 | 22.8 | 1.92 (1.75 to 2.10) | 1.22 (1.16 to 1.28) |
| Coronary heart disease | 78.1 | 23.1 | 1.96 (1.74 to 2.22) | 1.19 (1.11 to 1.28) |
| Stroke | 80.0 | 22.6 | 1.85 (1.63 to 2.09) | 1.24 (1.16 to 1.32) |
| Ischaemic stroke | 70.5 | 21.8 | 1.78 (1.46 to 2.16) | 1.41 (1.26 to 1.59) |
| Haemorrhagic stroke | 85.1 | 23.7 | 1.59 (1.34 to 1.89) | 1.10 (1.02 to 1.19) |
| Respiratory disease | 71.2 | 21.6 | 1.53 (1.36 to 1.74) | 1.36 (1.24 to 1.48) |
| Chronic obstructive pulmonary disease | 79.6 | 21.7 | 1.54 (1.35 to 1.77) | 1.26 (1.14 to 1.39) |
*
Total=non-accidental deaths from all causes; cardiovascular disease includes coronary heart disease and stroke; stroke includes ischaemic stroke and haemorrhagic stroke; and respiratory disease includes chronic obstructive pulmonary disease.
†
Minimum mortality centile of temperature distributions.
‡
Low=2.5th centile of temperature distribution (−1.4°C on average); high=97.5th centile of temperature distribution (29.0°C on average). Data presented as means and 95% confidence intervals.