Table 2.
Minimum YLL temperature (MYT) and attributable YLL (95%CI) rate associated with non-optimal temperatures by development level
| Subgroups | MYT [°C, MYP (%)] | Extreme cold effect | Extreme heat effect | |||
|---|---|---|---|---|---|---|
| HDR | LDR | HDR | LDR | HDR | LDR | |
| Nationwide | 28.8(92.9) | 28.3(92.5) | 5.0(3.8–6.3) | 6.7(5.5–7.9) | 0.3(0.1–0.5) | 0.4(0.2–0.6) |
| Northern China | 0.8(28.8) | 24.1(92.3) | 3.8(2.4–5.3) | 4.9(0.4–9.3) | 1.0(−1.6–3.6) | 0.7(0.2–1.3) |
| Southern China | 29.1(93.5) | 28.8(92.4) | 5.8(4.4–7.2) | 6.5(5.3–7.7) | 0.2(0.0–0.5) | 0.3(0.1–0.5) |
| Age 0–64 | 29.0(93.4) | 28.9(94.3) | 1.9(0.7–3.2) | 2.6(1.8–3.5) | 0.1(− 0.1–0.2) | 0.1(0.0–0.2) |
| Age65+ | 28.5(92.0) | 27.7(90.5) | 35.5(29.2–41.9) | 44.7(38.8–50.6) | 2.4(1.3–3.4) | 3.0(2.0–4.0) |
| Males | 29.1(93.7) | 28.7(93.7) | 5.8(3.7–8.0) | 7.6(6.1–9.0) | 0.2(0.0–0.4) | 0.3(0.1–0.5) |
| Females | 28.5(92.0) | 27.4(89.4) | 4.0(2.4–5.5) | 5.7(4.4–6.9) | 0.4(0.2–0.7) | 0.5(0.2–0.8) |
| Cardiovascular diseases | 28.6(92.3) | 28.3(92.5) | 2.2(1.5–2.8) | 3.3(2.8–3.8) | 0.2(0.1–0.3) | 0.2(0.1–0.3) |
| Respiratory diseases | 28.4(91.7) | 27.7(90.5) | 0.7(0.4–1.0) | 0.9(0.6–1.1) | 0.0(0.0–0.1) | 0.1(0.0–0.1) |
Notes: MYT Minimum YLL rate temperature, MYP Minimum YLL rate percentile of the daily temperature
Extreme cold: 2.5th percentile of temperature distribution; nationwide: −8.2 °C, northern China: − 18.0 °C, southern China: 2.4 °C
Extreme heat: 97.5th percentile of temperature distribution; nationwide: 30.3 °C, northern China: 26.6 °C, southern China: 30.6 °C