Table 3 Univariate analysis for factors associated with genotoxicity assays performed with urine extracts on HepG2 cells: statistical significance of associations (N = 64).

Socio-demographic characteristics

   Marital status (married/not married)

0.12

0.94

   Smoking (ex-smokers/never smokers)

0.16

0.18

Educational level; years (> 12/≤ 12)

0.04

0.23

Age; years (≤ 39/> 39)

0.01

0.02

   Alcohol consumption (regularly/occasionally)

0.09

0.05

   Vegetable intake (usually/sometimes)

0.05

0.02

VOCs

   Benzene

0.01

0.001

   Toluene

0.14

0.004

   Ethylbenzene

0.01

0.001

   M+P-Xylene

0.002

< 0.001

   O-Xylene

0.003

< 0.001

   1, 2,4 Trimethylebenzene

0.02

< 0.001

   Undecane

0.05

< 0.001

   Trichloroethylene

0.07

0.05

   Tetrachloroethylene

0.01

0.19

   Styrene

0.09

0.002

   Decane

0.001

< 0.001

   1,4 Dichlorobenzene

0.06

0.02

PAHs

   Benzo(a)pyrene

0.40

0.35

   Anthracene

0.02

0.17

   Benz(a)anthracene

0.20

0.20

   Benzo(b)fluoranthene

0.16

0.22

   Benzo(g,h,i)perylene

0.09

0.22

   Benzo(k)fluornathene

0.21

0.24

   Chrysene

0.01

0.03

   Dibenz(a,h)anthracene

0.02

0.51

   Fluoranthene

0.04

0.06

   Indeno(1,2,3-cd)pyrene

0.08

0.20

   Phenanthrene

0.01

0.03

   Pyrene

0.03

0.11

   Benzo(j)fluoranthene

0.06

0.26

   Total [B(a)P]eq

0.15

0.34