Table 1 Baseline characteristics of participants
Variables | Number | Percentage |
|---|---|---|
N = 229 | ||
Gender | ||
Male | 222 | 96.9% |
Female | 7 | 3.1% |
Age (years) | ||
Median (IQR) | 35 (30 – 42) | |
20–29 | 56 | 24.5% |
30–39 | 99 | 43.2% |
40–49 | 49 | 21.4% |
50–59 | 25 | 10.9% |
Work seniority (years) | ||
Median (IQR) | 10 (5 – 15) | |
Daily exposure (hours) | ||
Median (IQR) | 9 (8 – 10) | |
≤8 | 104 | 45.4% |
>8 | 125 | 54.6% |
Smoking | ||
Yes | 55 | 24% |
Ex smoker | 7 | 3.1% |
No smoking | 167 | 71.9% |
Symptoms of asthma | ||
Cough during the night | 59 | 25.8% |
Ever wheezing | 9 | 3.9% |
Ever wheezing during exercise | 8 | 3.5% |
Work related wheezing | 6 | 2.6% |
Rhinitis | ||
Yes | 56 | 24.5% |
No | 173 | 75.5% |
Work related rhinitis | 35 | 15.3% |
Rhinoconjuntivitis | 15 | 6.6% |