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Article: Birth cohort effects underlying the increasing testicular cancer incidence in Canada
- Article from:
- Canadian Journal of Public Health
- Article date:
- May 1, 1999
- Author:
CopyrightCopyright Canadian Public Health Association May/Jun 1999. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
Purpose: To examine the pattern of testicular cancer incidence by age, time period and birth cohort since 1969 in Canada. Method. In addition to analyses of the secular trends by age group and birth cohort separately, an ageperiod-cohort model and the submodels with standard Poisson assumptions were fitted to the data. Results: The overall age-adjusted incidence of testicular cancer increased in Canada, from 2.8 per 100,000 males in 1969-71 to 4.2 in 1991-93. The younger age groups showed much higher absolute incidence rates in the recent period compared with those in the early period. Age-period-cohort modelling of data restricted to males aged 20-84 years suggested that the ...