Female Breast Cancer Incidence in Connecticut 1935-1978 (free format) Data Items 1 YearFrom Lower Limit of Period category 2 YearTo Upper Limit of Period category 3 AgeFrom Lower Limit of Age category 4 AgeTo Upper Limit of Age category 5 WY Women-years at risk 6 Cases Number of cases ----------- Taken from American Journal of Epidemiology see also data from Iceland (Breslow and Day volume II, pp 126-130)