Table 5

Multivariate models of the important covariates associated with NHL for long held occupations.

Variable
Farmer
Machinist



OR (95% CI)a
OR (95% CI)a

Personal history of another cancer (yes)
2.60 (1.83, 3.69)c
2.57 (1.82, 3.65)c
Ever exposed to ionizing radiation (radium) (yes)
3.41 (1.44, 8.11)c
3.21 (1.34, 7.67)c
Ever exposed to diesel (yes)
1.23 (0.97, 1.56)
1.28 (1.02, 1.61)c



Duration (reference to no exposure)


<10 years
0.77 (0.45, 1.30)
0.73 (0.29, 1.86)
10–20 years
1.34 (0.54, 3.34)
1.87 (0.33, 10.57)
> 20 years
1.47 (0.95, 2.29)
2.34 (0.97, 5.68)

a all odds ratios were adjusted for age and province of residence.

c Statistically significant at 5% level results are bold.

Karunanayake et al. Environmental Health 2008 7:44   doi:10.1186/1476-069X-7-44