Model for lung cancer mortality as an underlying cause of death among workers in the South Carolina asbestos textile workers cohort*
| Term in model | Estimate | Standard error | Likelihood ratio test† | ||
|---|---|---|---|---|---|
| *Linear relative risk model for lung cancer mortality rate is given by λ = λ0 × (1 + β10E10) where λ0 = exp[β0 + β1(sex = female) + β2(race = non-white) + β3(age = 50–54 years) + β4(age = 55–59 years) + β5(age = 60–64 years) + β6(age = 65–69 years) + β7(age = 70–74 years) + β8(age = 75–79 years) + β9(age = 80+ years)] and E10 is cumulative chrysotile exposure (in fibre-years/ml) lagged by 10 years. | |||||
| †Likelihood ratio χ2 statistic, degrees of freedom, p value. | |||||
| Intercept | β0 | −8.72 | 0.358 | – | |
| Sex | Male | Ref | – | – | 43.5, 1, <0.0001 |
| Female | β1 | −1.02 | 0.161 | ||
| Race | White | Ref | – | – | 23.3, 1, <0.0001 |
| Non-white | β2 | −1.03 | 0.238 | ||
| Age | <50 years | Ref | – | – | 253.8, 7, <0.0001 |
| 50–54 years | β3 | 2.05 | 0.445 | ||
| 55–59 years | β4 | 2.66 | 0.410 | ||
| 60–64 years | β5 | 3.27 | 0.392 | ||
| 65–69 years | β6 | 3.61 | 0.388 | ||
| 70–74 years | β7 | 3.59 | 0.402 | ||
| 75–79 years | β8 | 3.87 | 0.415 | ||
| 80+ years | β9 | 4.20 | 0.432 | ||
| Exposure | Fibre-years/ml; 10-year lag | β10 | 0.0198 | 0.00496 | 47.1, 1, <0.0001 |