Age-Specific Incidence of Breast Cancer – Are Younger Women at a Higher Risk?

Wolfgang Janni
2006 Breast Care  
er, epidemiological evidence suggests that this increased frequency is due to a shift in age distribution in the general population rather than a change in age-specific incidence. This underlines that the risk for developing breast cancer within a certain age group has not changed dramatically. Age distribution and age-specific incidences, as observed in the Munich area, are depicted in fig. 1 . Median age for developing breast cancer is still about 60 years, with an almost symmetrical
more » ... ymmetrical distribution around this age: Slightly more than half of the patients (52%) are between 50 and 69 years of age, slightly more than a quarter (27.8%) older than 70 years, and about one quarter (20.2%) younger than 50 years. Of breast cancer patients younger than 50 years, 10.2% are between 45 and 50, 5.5% are between 40 and 45 and 3% are between 35 and 40 years old. In very young women under the age of 35 years, breast cancer is still rare with less than 2%. Only 0.1% of breast cancers occur under the age of 30 years. Neverthe-
doi:10.1159/000090440 fatcat:kn5rdzzhjjftxa6gr3uigq3jke