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Relationship between length of exposure and the health status parameters of Petroleum Tanker Drivers
Frequency of Chest Pain, Skin rashes & Infections Eye Itching & Infection Blood Pressure
| Exposure (yrs) | R | O | RA | R | O | RA | R | O | RA | N | H |
| 5–10 | 2 | 2 | 2 | 4 | 1 | 1 | 1 | 4 | 1 | 2 | 4 |
| 10–15 | 2 | 3 | 3 | 5 | 2 | 1 | 2 | 5 | 1 | 3 | 5 |
| 16–20 | 2 | 2 | 0 | 2 | 2 | 0 | 3 | 3 | 0 | 1 | 3 |
| Above 20 | 2 | 4 | 1 | 5 | 1 | 1 | 1 | 5 | 1 | 2 | 5 |
R (Regular); O (Occasional); RA (Rare); N (Normal); H (High)
