Table 2. Summary statistics of daily hospital admissions for cardiovascular disease, weather conditions, air pollutants, and temperature variability in 184 Chinese cities, 2014–2017.
| Variables | Mean | Range |
|---|---|---|
| Cardiovascular disease | 44 | 1 to 302 |
| Relative humidity (%) | 68 | 33 to 92 |
| Temperature (°C) | 14.4 | −0.2 to 24.4 |
| PM2.5, μg/m3 | 50.4 | 14.8 to 155.3 |
| NO2, μg/m3 | 32.0 | 12.8 to 60.3 |
| SO2, μg/m3 | 26.4 | 2.3 to 93.3 |
| Temperature variability | ||
| TV0–1 (°C) | 5.7 | 2.9 to 9.3 |
| TV0–2 (°C) | 5.6 | 2.8 to 8.9 |
| TV0–3 (°C) | 5.6 | 2.8 to 8.8 |
| TV0–4 (°C) | 5.6 | 2.8 to 8.7 |
| TV0–5 (°C) | 5.6 | 2.8 to 8.6 |
| TV0–6 (°C) | 5.6 | 2.8 to 8.6 |
| TV0–7 (°C) | 5.6 | 2.8 to 8.6 |
Abbreviations: PM2.5, fine particulate matter; TV0-1, temperature variability at 0–1 days.