Table 4

Effect of occupational carcinogen exposure on the total cancer predictivity of chromosomal aberrations in case-control data from Nordic countries (cancer incidence data) and Italy (cancer mortality data)

CountryCA frequencyOccupational exposureaTotal
No exposureGroups A (low exposure), B, and CGroup A (intermediate or high exposure)
nca + ncobORcnca + ncoORcnca + ncoORcORadjusted (95% CI)d
Nordic countriesLowc11 + 561.007 + 411.005 + 231.001.00
Medium7 + 380.945 + 540.548 + 361.020.84 (0.44–1.61)
High14 + 411.7416 + 352.6816 + 292.532.29 (1.28–4.11)
ItalyLowe5 + 141.006 + 461.002 + 161.001.00
Medium4 + 140.8013 + 462.173 + 191.261.66 (0.76–3.61)
High7 + 92.1815 + 373.115 + 251.672.76 (1.28–5.91)
  • a In the 5 years before CA test. See Table 2 <$REFLINK> for definition of the occupational exposure levels.

  • b Number of cases + number of controls.

  • c Crude OR.

  • d OR adjusted for matching factors and smoking habit.

  • e Reference category.