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Distribution of the main characteristics of persons working in CNG/petrol pumps and automobile workshops and control group
| Main characteristics | Exposed group | Control group |
|---|---|---|
| N | 98 | 92 |
| Mean Age (Years) | 25.4 ± 7.2 | 26.7 ± 11.8 |
| Mean Duration of Job (Years) | 4.4 ± 4.8 | |
| Nature of Job | ||
| Fuel filling station workers | 68 (69.4 %) | |
| Automobile Workshop workers | 30 (30.6 %) | |
| Smoking | ||
| No | 71 (72.4 %) | 70 |
| Yes | 27 (27.6 %) | 22 |
N, Number of subjects
