Table 4.
Demographic, clinical, and laboratory parameters among cases (traffic police personals) with abnormal and normal pulmonary function test
| Normal PFT | Abnormal PFT | P | |
|---|---|---|---|
| Age (years), median (IQR) | 38.67 (7) | 37 (6) | 0.094 |
| Height (cm), median (IQR) | 172 (7) | 178 (13) | 0.031 |
| Weight (kg), median (IQR) | 74 (13) | 72 (14) | 0.766 |
| BMI (kg/m2), median (IQR) | 24.4 (4.2) | 22.3 (4.0) | 0.087 |
| Years as smokers, mean±SD | 6.35±7.97 | 8.88±9.30 | 0.247 |
| Pack years, mean±SD | 3±4.87 | 5.02±6.88 | 0.143 |
| Smoking index, mean±SD | 60.05±97.43 | 100.31±137.60 | 0.143 |
| Duty (h/day), median (IQR) | 14 (0) | 14 (0) | 0.590 |
| Years in service, median (IQR) | 2 (3) | 2 (4) | 0.293 |
| Exposure index, median (IQR) | 87.36 (143.5) | 218.4 (207.4) | 0.044 |
PFT: Pulmonary function test, SD: Standard deviation, IQR: Interquartile range, BMI: Body mass index