Table 2.
Demographic characteristics of the study population *.
Characteristics | Individual Petrol Stations | |||||||
---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | |
Age (year) | 29.25 ± 8.20 | 27.82 ± 7.61 | 28.82 ± 4.05 | 28.29 ± 8.70 | 27.00 ± 5.40 | 24.87 ± 4.72 | 26.25 ± 3.58 | 31.54 ± 6.13 |
Gender | ||||||||
Male (%) | 5(41.7) | 5(45.5) | 1(9.1) | 8(57.1) | 6(46.2) | 8(53.3) | 1(12.5) | 4(30.8) |
Female (%) | 7(58.3) | 6(54.5) | 10(90.9) | 6(42.9) | 7(53.8) | 7(46.7) | 7(87.5) | 9(69.2) |
Body weight (kg) | 55.13 ± 8.87 | 52.68 ± 4.12 | 61.09 ± 6.71 | 56.46 ± 6.79 | 54.53 ± 8.85 | 55.2 ± 5.29 | 62.65 ± 9.97 | 58.85 ± 9.33 |
Type of job | ||||||||
Operating workers (%) | 8(66.7) | 6(54.5) | 7(63.6) | 9(64.3) | 8(61.5) | 10(66.7) | 5(62.5) | 8(61.5) |
Support staff (%) | 4(33.3) | 5(45.5) | 4(36.4) | 5(35.7) | 5(38.5) | 5(33.3) | 3(37.5) | 5(38.5) |
Working time (h/day) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Length of exposure (year) | 2.63 ± 2.50 | 4.36 ± 4.12 | 6.32 ± 3.13 | 2.50 ± 2.01 | 4.27 ± 3.48 | 3.00 ± 2.80 | 4.88 ± 4.19 | 5.92 ± 3.77 |
* The number of subjects at P. stations A, B, C, D, E, F, G, and H were 12, 11, 11, 14, 13, 15, 8 and 13, respectively.