Table 5. Correlations between parameters of DNA damage and age, years of smoking, duration of work and working hours in gasoline station workers’.

	DNA fragmentation (OD) r (p)		Micronucleus % r (p)		Dead cells % r (p)
Ages (yr)	−0.249	0.435	0.245	0.443	0.132	0.683
Years of smoking*	−0.038	0.922	0.014	0.971	−0.229	0.554
Duration of work (yr)	−0.100	0.757	−0.120	0.711	0.052	0.872
Working h/d	0.469	0.124	−0.513	0.088	−0.507	0.079
Benzene (PPM)	0.357	0.001	0.317	0.003	0.212	0.032
Toluene (PPM)	0.155	0.165	0.123	0.261	0.142	0.159
Ethyle Benzene (PPM)	0.175	0.096	0.119	0.257	0.112	0.298
Xylene (PPM)	0.124	0.094	0.064	0.386	0.023	0.758

*In smokers (n=44)