From: Acute respiratory symptoms and evacuation-related behavior after exposure to chlorine gas leakage
Variables | Total (n = 47) | Low exposure (n = 20) | High exposure (n = 27) | |||
---|---|---|---|---|---|---|
n | % | n | % | n | % | |
Age (year) | ||||||
Mean ± SD* | 41.70 ± 9.27 | 37.90 ± 9.89 | 45.00 ± 8.19 | |||
Tenure (year) | ||||||
Mean ± SD | 2.55 ± 1.80 | 2.45 ± 1.96 | 2.63 ± 1.71 | |||
Exposure time (minute) | ||||||
Median (range)** | 10 (1–30) | 2 (1–8) | 10 (10–30) | |||
Lasting respiratory symptoms (day) | ||||||
Median (range)** | 1 (0–25) | 1 (0–5) | 2 (0–25) | |||
Sex | ||||||
Male | 39 | 83.0 | 17 | 85.0 | 22 | 81.5 |
Female | 8 | 17.0 | 3 | 15.0 | 5 | 18.5 |
Smoking status | ||||||
Never | 20 | 42.6 | 10 | 50.0 | 10 | 37.0 |
Current | 22 | 46.8 | 10 | 50.0 | 12 | 44.4 |
Former | 5 | 10.6 | 0 | 0.0 | 5 | 18.5 |
Preexisting disease | ||||||
None | 44 | 93.6 | 19 | 95.0 | 25 | 92.6 |
Asthma or COPD | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
Hypertension | 2 | 4.3 | 0 | 0. | 2 | 7.4 |
Dermatologic disease | 1 | 2.1 | 1 | 5.0 | 0 | 0.0 |