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Table 1 Number of cases for female breast cancer, by age-group

From: Spatial variations in the incidence of breast cancer and potential risks associated with soil dioxin contamination in Midland, Saginaw, and Bay Counties, Michigan, USA

Age (in years) Cases
≤14a 1
15 – 44 572
45 – 64 1,833
65 – 74 1,126
≥75 1,071
Unknownb 1
Total cases 4,604
  1. a The record was removed from the analysis as merging into other groups may bias the underlying at-risk background population in other groups.
  2. b The record was removed from the analysis because of missing age.