Table 2

Relative risks (RRs) of death from all selected causes, by duration of employment

Cause of death by ICD-8 codesDuration of employment (y)p Value test for trend
1–92-15110–1920
Deaths (n)RRDeaths (n)RR(95% CI)Deaths (n)RR(95% CI)
All causes (001–999)13911460.97(0.75 to 1.25)1460.99(0.73 to 1.35)0.95
All malignant neoplasms (140–208)301421.19(0.71 to 1.98)421.40(0.80 to 2.45)0.24
 Buccal cavity, pharynx, and larynx (140–149, 161)2120.74(0.08 to 6.47)22.03(0.22 to 19.0)0.43
 Trachea, bronchus, and lung (162)101120.90(0.36 to 2.25)120.59(0.22 to 1.61)0.29
 Stomach (151)4173.14(0.75 to 13.1)77.06(1.27 to 39.3)0.03
 Bladder (188)3120.76(0.09 to 6.25)20.47(0.05 to 4.45)0.51
Non-malignant respiratory diseases (460–519)171180.81(0.39 to 1.71)180.62(0.24 to 1.59)0.32
  • 2-151 Reference category.

  • Results of Poisson regression analysis with age as a covariate.