Table 1. Demographic details of all study subjects.
| Subject details | Total | Auto rickshaw driver (ARD) | Office worker (OW) | Traffic cop (TC) |
|---|---|---|---|---|
| Number of subjects | 85 | 29 | 23 | 33 |
| Mean age (range) in years | 33 (25–40) | 32(25–38) | 33 (28–40) | 33 (27–39) |
| Gender (Male in %) | 100 | 100 | 100 | 100 |
| Height (Mean ± SD in cm) | 168.5 ± 2.9 | 166.6 ± 2.7 | 167.2 ± 1.6 | 171.2 ± 1.3 |
| Weight (Mean ± SD in kg) | 67.4 ± 4.55 | 64.6 ± 4.9 | 67.9 ± 2.78 | 69.5 ± 3.9 |
| BMI (Mean ± SD) | 23.8 ± 1.16 | 23.4 ± 1.2 | 24.3 ± 0.72 | 23.7 ± 1.3 |
| FVC (Mean ± SD in L) | 2.15 ± 0.27 | 2.12 ± 0.26 | 2.15 ± 0.26 | 2.19 ± 0.29 |
| FEV1 (Mean ± SD in L) | 1.77 ± 0.14 | 1.75 ± 0.16 | 1.77 ± 0.14 | 1.77 ± 0.19 |
| FEV1/FVC (Mean ± SD in %) | 82.6 ± 6.98 | 83.51 ± 7.14 | 83 ± 6.63 | 81.5 ± 7.15 |
| Smoking (Y/N) | 37/48 | 17/12 | 3/20 | 18/15 |
| Alcoholism (Y/N) | 37/48 | 17/12 | 4/19 | 16/17 |
(SD: standard deviation, BMI: body mass index, Y: yes, N: No, FVC: forced vital capacity, FEV1: forced expiratory volume in 1 sec).