Table 5 Odds ratios (ORs) for hepatocellular carcinoma (HCC) for total polychlorinated biphenyls by HCC risk factors, according to distribution tertiles of polychlorinated biphenyls (PCBs) in the controls.

From: Polychlorinated biphenyls and risk of hepatocellular carcinoma in the population living in a highly polluted area in Italy

Lipid adjusted PCB concentration in serum (ng/g lipid)

Cases

Controls

OR (95% CI)*

No risk factor for HCC (HBV, HCV or 60 + g/day alcohol)

Total PCBs

T1

4

31

1

T2

6

31

1.18 (0.27–5.12)

T3

9

30

1.60 (0.38–6.63)

At least one risk factor for HCC (HBV, HCV or 60 + g/day alcohol)

Total PCBs

T1

19

4

1

T2

4

3

0.19 (0.02–1.69)

T3

20

3

1.77 (0.29–10.56)

  1. *Adjusted for age, sex and residence by logistic regression analysis.