Table 1.
Summary table of descriptive statistics of cardiovascular and respiratory emergency department visits, weather, and fine particulate matter (PM2.5) variables from January 2014 to December 2017.
| Daily Mean ± SD | P25 | Median | P75 | Min-Max | |
|---|---|---|---|---|---|
| Health Outcomes | |||||
| CVD ED Visits (N = 340,758) | 233 ± 47 | 201 | 233 | 265 | 102 – 392 |
| < 50 years* (54.7%) | 114 ± 24 | 99 | 114 | 130 | 52 – 192 |
| > 50 years* | 139 ± 28 | 129 | 140 | 159 | 49 – 221 |
| Respiratory ED Visits (N = 38,233) | 26 ± 8 | 21 | 25 | 30 | 10 – 85 |
| < 50 years (53.5%) | 12 ± 5 | 9 | 12 | 15 | 4 – 56 |
| > 50 years | 14 ± 5 | 11 | 13 | 17 | 4 – 46 |
| Air Pollution | |||||
| PM2.5 (μg/m3) | 87.4 ± 69.5 | 30.3 | 57.5 | 139 | 7.87 – 311 |
| Weather (All Year) | |||||
| Mean Temperature (°C) | 26. 4 ± 4.12 | 20.2 | 27.6 | 29.6 | 14.1 – 34.4 |
| Mean Relative Humidity | 72.2 ± 10.8 | 66.0 | 73.0 | 80.0 | 34.0 – 97.0 |
| TV0–1 | 5.07 ± 1.49 | 3.89 | 5.05 | 6.24 | 0.962 – 8.97 |
| TV0–7 | 4.74 ± 1.22 | 3.69 | 4.84 | 5.65 | 2.27 – 7.33 |
| Weather (Hot and Dry Season) | |||||
| Mean Temperature (°C) | 28.6 ± 2.46 | 27.07 | 29.0 | 30.5 | 20.0 – 34.4 |
| Mean Relative Humidity | 68.8 ± 11.7 | 63.0 | 70.0 | 76.0 | 34.0 – 97.0 |
| TV0–1 | 5.31 ± 1.34 | 4.41 | 5.31 | 6.26 | 1.54 – 8.55 |
| TV0–7 | 5.03 ± 0.950 | 4.35 | 5.04 | 5.68 | 2.27 – 7.33 |
| Weather (Warm and Humid Season) | |||||
| Mean Temperature (°C) | 28.6 ± 1.49 | 27.9 | 29.0 | 29.8 | 21.9 – 31.8 |
| Mean Relative Humidity | 79.2 ± 7.15 | 74.0 | 79.0 | 84.0 | 57.0 – 96.0 |
| TV0–1 | 3.84 ± 0.91 | 3.25 | 3.79 | 4.40 | 0.963 – 6.52 |
| TV0–7 | 3.58 ± 0.54 | 3.21 | 3.50 | 3.84 | 2.27 – 5.39 |
| Weather (Cold Season) | |||||
| Mean Temperature (°C) | 20.9 ± 2.91 | 19.7 | 21.2 | 23.7 | 14.1 – 29.5 |
| Mean Relative Humidity | 68.5 ± 9.50 | 63.0 | 68.0 | 74.0 | 36.0 – 95.0 |
| TV0–1 | 6.13 ± 1.15 | 5.55 | 6.21 | 6.85 | 2.14 – 8.97 |
| TV0–7 | 5.62 ± 0.60 | 5.23 | 5.64 | 6.07 | 4.00 – 7.12 |
Abbreviations: CVD, Cardiovascular Diseases; ED, Emergency Department; PM2.5, Fine Particulate Matter; Q1, 1st Quartile, Q3, 3rd Quartile; SD, Standard Deviation; TV0–1, Temperature Variability at 0–1 days; TV0–7, Temperature Variability at 0–7 days.
*
Age-specific data for emergency department visits due to cardiovascular diseases is available for only 2016 and 2017.