Epistream has provided services for a number of studies. The scope of this work has been quite varied and involved: questionnaire design and survey methodology, analysis of longitudinal data, and case-control study design. Epistream also provides statistical guidance on analytic issues such as sample size calculations, and regression analysis.

Project Examples:

1. The Newfoundland Fluorspar miners study

Epistream worked with Public Health Agency of Canada and the Canadian Nuclear Safety Commission to investigate the effects of low level radon exposure on the risk of lung cancer in a cohort of individuals who mined fluorspar in the St. Lawrence area of Newfoundland. Epistream designed and administered smoking surveys to surviving miners. Statistical analyses were done to examine the effects of radon exposure on cancer risk and cardiovascular disease. The study findings were presented to the community of St. Lawrence in August, 2005. A copy of the final report is available in PDF format.

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2. Ontario and Quebec Breast Implant Study

Epistream provided expertise to Health Canada when they conducted a cohort study to determine whether women who received bi-lateral breast augmentation between 1979 and 1984 had increased rates of cancer incidence and mortality. The cohort data were linked to the Canadian Mortality and Cancer incidence databases maintained by Statistics Canada Epistream is assisting Health Canada in the statistical analyses of these data.  A number of manuscripts that summarize the findings of this work have been published.

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