Fig. 2

Prevalence of incidental breast cancer or neoplastic precursor lesions in studies by median year of autopsies. 2a: Cancer or precursor lesion 2b: Invasive cancer 2c: In-situ cancer 2d: Atypical Hyperplasia. Data points are proportional to total number of women in each study and are numbered according to year of study as follows: 1: Kiaer [26], 2: Ryan [27]; 3: Sarnelli [28]; 4: Kramer [29]; 5: Nielsen 1984 [30]; 6: Bartow [31]; 7: Nielsen 1987 [32]; 8: Alpers [33]; 9: Pisano [34]; 10: Bhathal [35]; 11: Giarelli [36]; 12: Inai [37]; 13: Stalsberg (Ghana) [25]; 14: Stalsberg (Norway) [25]