Table 1.
Descriptive statistics for weekly atmospheric data and influenza-like illness (total and in age groups) from 288 reporting periods in Warsaw (2013–2018)
| Variables | Mean ± SD | Min | Percentile | Max | ||
|---|---|---|---|---|---|---|
| 25 | 50 | 75 | ||||
| Atmospheric data | ||||||
| Air temperature t (°C) | 10.7 ± 8.6 | − 10.7 | 3.5 | 10.7 | 18.4 | 28.2 |
| Relative humidity RH (%) | 72.3 ± 12.6 | 36.8 | 62.6 | 72.3 | 83.1 | 93.9 |
| Vapour pressure vp (hPa) | 9.9 ± 4.2 | 1.9 | 6.4 | 9.4 | 13.4 | 21.1 |
| Wind speed v (m/s) | 2.4 ± 0.6 | 1.2 | 1.9 | 2.3 | 2.8 | 4.2 |
| Mean radiant temperature tmrt (°C) | 11.5 ± 14.4 | − 18.7 | − 1.4 | 11.4 | 24.4 | 39.8 |
| UTCI (°C) | 7.4 ± 12.3 | − 26.0 | − 3.1 | 7.7 | 18.4 | 30.5 |
| PM2.5 (μg/m3) | 21.8 ± 10.4 | 7.4 | 13.4 | 18.9 | 28.6 | 52.8 |
| PM10 (μg/m3) | 31.6 ± 11.5 | 13.2 | 23.1 | 29.0 | 38.5 | 69.7 |
| Daily influenza-like illness (dILI) per 100,000 residents | ||||||
| 0–4 years old | 67.9 ± 49.7 | 2.2 | 31.9 | 54.9 | 88.5 | 228.5 |
| 5–14 years old | 29.7 ± 24.6 | 1.1 | 11.7 | 22.9 | 39.0 | 130.4 |
| 15–64 years old | 15.8 ± 12.3 | 1.4 | 7.0 | 12.6 | 20.8 | 81.9 |
| 65 years old and above | 9.9 ± 6.3 | 0.7 | 4.9 | 8.6 | 13.1 | 33.3 |
| Total | 18.8 ± 13.8 | 1.6 | 9.0 | 15.3 | 24.9 | 83.3 |
Note: SD standard deviation