A Study of Mortality in Workers Engaged in the Mining, Smelting, and Refining of Nickel: I: Methodology and Mortality by Major Cause Groups

Following the publication of the NIOSH nickel criteria document in 1977, the Joint Occupational Health Committee of the International Nickel Company (INCO) commissioned a mortality study of the company's Ontario workforce. This paper describes the detailed methodology and primary mortality results of the ensuing study; subsequent papers will describe more detailed findings of cause-specific mortality. An historical prospective mortality study …