[Mortality ratio in industrial cohort studies]
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W Szymczak1, U Wilczyńska, N Szeszenia-Dabrowska
1Zakøadu Epidemiologii i Statystyki Instytutu Medycyny Pracy w Lodzi.
Medycyna Pracy
|January 1, 1987
Abstract:
Presented in the paper is a method of calculating and evaluating the statistical significance of one of the primary measures of mortality in industrial cohort studies--i.e. standardized mortality rate. As the standardized mortality rate is calculated basing on man-years of stay in cohort, thus the method of man-years calculation has been exemplified by two subjects. The methods have been illustrated by the results of studies carried out by the authors.