Table 2.
Distribution of the 30‐Minute‐Based Environmental Factors and Cardiac Arrhythmias
| Mean | SD | Median | IQR | Minimum | Maximum | Fifth percentile | 95th percentile | |
|---|---|---|---|---|---|---|---|---|
| Environmental factors | ||||||||
| PM2.5, μg/m3 | 17.13 | 38.55 | 5.90 | 12.90 | 0.00 | 3849.03 | 1.92 | 62.83 |
| Temperature, °C | 22.24 | 3.56 | 22.09 | 4.05 | 2.52 | 49.92 | 17.25 | 27.72 |
| Relative humidity, % | 43.71 | 11.75 | 43.63 | 15.58 | 15.58 | 100.00 | 24.57 | 62.43 |
| Cardiac arrhythmias | ||||||||
| PAC, counts | 0.47 | 3.00 | 2.00 | 1.00 | 0.00 | 127.00 | 0.00 | 7.00 |
| PVC, counts | 0.36 | 3.09 | 1.00 | 1.00 | 0.00 | 123.00 | 0.00 | 4.00 |
IQR indicates interquartile range; PAC, premature atrial contraction; PM2.5, fine particles with aerodynamic diameters ≤2.5 μm; and PVC, premature ventricular contraction.