Increasing Black:White disparities in breast cancer mortality in the 50 largest cities in the United States

This paper presents race-specific breast cancer mortality rates and the corresponding rate ratios for the 50 largest U.S. cities for each of the 5-year intervals between 1990 and 2009.The 50 largest cities in the U.S. were the units of analysis. Numerator data were abstracted from national death files where the cause was malignant neoplasm of the breast (ICD-9=174 and ICD-10=C50) for women. Population-based denominators were obtained from the...