Variable | Occupational Group | N | Mean | SD | P Value |
Blood lead levels | Welding and metal | 42 | 54.25 | 26.94 |
|
| Paint and pigment | 38 | 49.36 | 20.73 |
|
| Radiator and auto mechanic | 37 | 48.89 | 24.13 |
|
| Battery worker | 37 | 52.59 | 28.05 | NS |
| Petrol worker | 36 | 46.16 | 22.46 |
|
| Total | 190 | 50.37 | 24.58 |
|