Table 1.
The Number of Hospital Admissions Due to Asthma, COPD, and Bronchiectasis in Population Subgroups and Descriptive Statistics of Air Pollutants and Meteorological Parameters in Ahvaz City, 2008–2018
| Variable (Mean per Day) | N | Mean | SD | Min | Max | Q1 | Median | Q3 |
|---|---|---|---|---|---|---|---|---|
| Total people/Asthma | 3090 | 0.8 | 1.8 | 0 | 29 | 0 | 0 | 1 |
| Men/Asthma | 1513 | 0.4 | 1.2 | 0 | 18 | 0 | 0 | 0 |
| Women/Asthma | 1577 | 0.4 | 1.1 | 0 | 18 | 0 | 0 | 0 |
| ≤60years/Asthma | 2508 | 0.7 | 1.7 | 0 | 29 | 0 | 0 | 1 |
| >60 years/Asthma | 582 | 0.1 | 0.5 | 0 | 6 | 0 | 0 | 0 |
| Total people/COPD | 4534 | 1.2 | 1.7 | 0 | 12 | 0 | 1 | 2 |
| Men/COPD | 3166 | 0.9 | 1.4 | 0 | 12 | 0 | 0 | 2 |
| Women/COPD | 1368 | 0.4 | 0.8 | 0 | 7 | 0 | 0 | 0 |
| ≤60years/COPD | 1625 | 0.3 | 0.7 | 0 | 6 | 0 | 0 | 0 |
| >60 years/COPD | 2909 | 0.8 | 1.3 | 0 | 12 | 0 | 0 | 1 |
| Total people/Bronchiectasis | 1994 | 0.6 | 1.0 | 0 | 8 | 0 | 0 | 1 |
| Men/Bronchiectasis | 918 | 0.3 | 0.7 | 0 | 6 | 0 | 0 | 0 |
| Women/Bronchiectasis | 1076 | 0.3 | 0.7 | 0 | 6 | 0 | 0 | 0 |
| ≤60years/Bronchiectasis | 987 | 0.3 | 0.7 | 0 | 6 | 0 | 0 | 0 |
| >60 years/Bronchiectasis | 1007 | 0.3 | 0.7 | 0 | 8 | 0 | 0 | 0 |
| O3 (µg/m3) | – | 70.5 | 188.6 | 0.04 | 6520.0 | 26.4 | 42.7 | 64.6 |
| PM2.5 (µg/m3) | – | 85.7 | 150.4 | 0.57 | 3938 | 35.9 | 52.7 | 81.2 |
| PM10 (µg/m3) | – | 216.9 | 278.3 | 1.8 | 4324.2 | 105.8 | 149.2 | 222.4 |
| NO2 (µg/m3) | – | 46.4 | 43.1 | 1.5 | 443.8 | 17.8 | 35.6 | 60.7 |
| NO ((µg/m3)) | – | 29.1 | 31.0 | 0.12 | 608.7 | 9.1 | 19.6 | 38.2 |
| CO (µg/m3) | – | 1.5 | 2.1 | 0.1 | 70.4 | 0.6 | 1.13 | 2.0 |
| SO2 (µg/m3) | – | 48.8 | 57.0 | 0.0 | 907.4 | 19.3 | 35.9 | 59.3 |
| Temperature (° C) | – | 27.0 | 9.4 | 1.4 | 47.8 | 18.4 | 27.7 | 36.0 |
| Relative Humidity (%) | – | 42.3 | 17.9 | 7.0 | 96.0 | 27.5 | 40.0 | 54.5 |