Table 4

HRs (95% CI) for death due to all causes and cancer causes in asbestos workers and controls

All causes (n=335)All cancers (n=129)Lung cancer (n=62)GI cancer* (n=47)NMRD (n=92)
Model 1
 Asbestos exposure2.05 (1.56 to 2.68)1.89 (1.25 to 2.87)3.31 (1.60 to 6.87)1.14 (0.61 to 2.14)3.23 (1.68 to 6.22)
 Smoking1.01 (0.79 to 1.30)1.18 (0.79 to 1.78)2.78 (1.26 to 6.15)0.85 (0.46 to 1.58)1.25 (0.75 to 2.08)
 Age at entry1.09 (1.07 to 1.10)1.07 (1.05 to 1.09)1.07 (1.05 to 1.10)1.06 (1.03 to 1.10)1.13 (1.11 to 1.16)
Model 2§
 Low level1.79 (1.33 to 2.42)1.57 (0.98 to 2.52)1.94 (0.84 to 4.46)1.39 (0.70 to 2.76)2.55 (1.27 to 5.13)
 Medium level1.93 (1.32 to 2.82)1.61 (0.87 to 2.98)3.49 (1.41 to 8.67)0.83 (0.28 to 2.49)3.50 (1.56 to 7.84)
 High level2.72 (1.98 to 3.75)2.83 (1.73 to 4.62)6.01 (2.74 to 13.19)0.87 (0.33 to 2.29)4.76 (2.31 to 9.77)
 p for trend<0.001<0.001<0.0010.677<0.001
 Smoking0.98 (0.76 to 1.25)1.13 (0.75 to 1.71)2.54 (1.14 to 5.63)0.87 (0.47 to 1.61)1.13 (0.67 to 1.91)
 Age at entry1.09 (1.07 to 1.10)1.07 (1.05 to 1.09)1.07 (1.04 to 1.10)1.06 (1.03 to 1.09)1.13 (1.11 to 1.16)
  • * Gastrointestinal cancers.

  • Non-malignant respiratory diseases.

  • Control workers served as reference group.

  • § Asbestos workers at each exposure level were compared with the control workers.

  • Trend test for the three exposure categories.