Table 2 Occupational status, smoking status, waterpipe use, and exhaled CO of the cohort
From: Smoking practices in relation to exhaled carbon monoxide in an occupational cohort
Occupational Category | Frequency N (%) | Age in years, median (IQR) | Current cigarette smokers N (%) | Waterpipe smokers N (%) | Exhaled CO in ppm, Median (IQR) |
|---|---|---|---|---|---|
All Occupational Groups | 787 (100) | 28 (11) | 330 (42) | 11 (1) | 4 (5) |
1. Firefighters | 329 (42) | 26 (4) | 114 (35) | 9 (3) | 4 (5) |
2. Firetruck drivers and driving instructors | 169 (21) | 30 (12.5) | 80 (47) | 0 (0) | 5 (7) |
3. Shift commanders and division heads | 148 (19) | 36 (10.8) | 74 (50) | 1 (1) | 4 (7) |
4. Department heads or assistant heads | 31 (4) | 34 (13) | 14 (45) | 0 (0) | 4 (6) |
5. Senior and junior foremen and respiratory equipment mechanics | 16 (2) | 30.5 (8.3) | 12 (75) | 0 (0) | 6 (8) |
6. Senior or junior engineers | 56 (7) | 28.5 (8) | 21 (38) | 1 (2) | 3.5 (6.8) |
7. Others | 38 (5) | 33.5 (11.5) | 15 (39) | 0 (0) | 3 (6.3) |