Table 6

Mortality^6-151 from malignant melanoma, multiple myeloma, and aortic aneurysm by period for male marketing or distribution workers from a petrochemical company (1964–94)

Cause of death (ICD-8 code)	Period
Cause of death (ICD-8 code)	Previous study period (1964–83) Observed/expected SMR (95% CI)	Update study period (1984–94) Observed/expected SMR (95% CI)
Malignant melanoma (172)	6/2.33	2/2.70
Malignant melanoma (172)	2.58 (0.95 to 5.60)	—
Multiple myeloma (203)	7/3.94	9/4.33
Multiple myeloma (203)	1.78 (0.71 to 3.66)	2.08 (0.95 to 3.95)
Aortic aneurysm (411)	26/13.85	14/11.85
Aortic aneurysm (411)	1.88(1.23 to 2.75)^6-150	1.18 (0.65 to 1.98)

↵6-150 95% CI does not include 1.0.
↵6-151 Expected deaths based on Canadian general population mortalities.