Table 4

Cancer incidence* by duration of employment among male employees with at least 10 years since hire, 1969–94

Type of malignancy (ICD codes, 9th revision)</emph><10 years employment⩾10–<20 years employment⩾20 years employment
O/E SIR (95% CI)O/E SIR (95% CI)O/E SIR (95% CI)
*Expected malignancies based on Canadian general population cancer incidence rates.
†95% CI does not include 1.00.
O/E, observed/expected.
Malignant neoplasms (140–208)120/146.2597/93.9726/30.75
0.82 (0.68 to 0.98)†1.03 (0.84 to 1.26)0.85 (0.55 to 1.24)
Stomach (151)3/4.832/3.060/1.01
Large intestine (except rectum) (153, 159.0)7/11.4010/7.136/2.50
0.61 (0.25 to 1.26)1.40 (0.67 to 2.58)2.40 (0.88 to 5.21)
Rectum and rectosigmoid junction (154)5/7.693/4.841/1.77
0.65 (0.21 to 1.52)
Liver (155.0)1/1.270/0.820/0.28
Gall bladder (156)3/0.730/0.450/0.16
Pancreas (157)3/3.461/2.171/0.77
Bronchus & lung (162.2–162.5, 162.8–162.9)21/26.7412/16.903/6.19
0.78 (0.49 to 1.20)0.71 (0.37 to 1.24)0.48 (0.10 to 1.42)
Pleura (163)0/0.541/0.332/0.13
Malignant melanoma (172)9/7.4311/4.952/1.36
1.21 (0.55 to 2.30)2.22 (1.11 to 3.97)
Prostate (185)8/13.796/8.210/3.11
0.58 (0.25 to 1.14)0.73 (0.27 to 1.59)
Bladder (188)9/7.825/4.961/1.62
1.15 (0.53 to 2.18)1.01 (0.33 to 2.35)
Kidney (189.0–189.2)5/6.177/3.871/1.43
0.81 (0.26 to 1.89)1.81 (0.73 to 3.72)
Brain (malignant) (191)7/4.735/3.202/0.85
1.48 (0.60 to 3.05)1.56 (0.51 to 3.65)
Malignant CNS (excluding brain) (192.0–192.9)0/0.320/0.220/0.05
Reticulum cell sarcoma (200.0)4/1.750/1.181/0.34
Lymphosarcoma (200.1)1/1.201/0.801/0.22
Hodgkin’s disease (201)3/2.532/1.830/0.30
Non-Hodgkin’s lymphoma (200.0–200.2, 202.0, 202.8)8/7.685/5.073/1.53
1.04 (0.45 to 2.05)0.99 (0.32 to 2.30)
Other lymphoid neoplasms (200.8, 202.1, 202.9)1/1.373/0.900/0.28
Multiple myeloma (203.0)0/1.543/0.950/0.35
Leukaemias (204-206, 207.0, 207.2, 207.8, 208)4/4.744/3.080/0.90
Acute non-lymphocytic leukaemia (205.0, 206.0, 207.0)1/1.381/0.910/0.25
Acute lymphoid leukaemia (204.0)0/0.400/0.280/0.06
Chronic lymphoid leukaemia (204.1)3/1.413/0.870/0.33
Acute myeloid (myelomonocytic) leukaemia (205.0)1/1.271/0.840/0.23
Chronic myeloid leukaemia (205.1)0/0.960/0.640/0.16
Other leukaemias (204.2–204.9, 205.2–205.9, 206.1–206.9, 207.2–207.8, 208.0–208.9)0/0.550/0.350/0.09