Breast cancer screening in an urban public hospital. Five-year results.

Abstract

This report describes the first 5 years of the Breast Cancer Screening Program (BCSP) at Cook County Hospital (CCH), a hospital that serves a predominantly African-American and low-income population. A retrospective review of hospital cancer registry staging for breast cancers diagnosed between 1984 and 1988 was performed. Between 1984 and 1988, 499 new breast cancers were diagnosed at CCH, of which 33% were diagnosed after referral from the BCSP. The percentage of early breast cancers, defined as Stages 0 or 1, was 25% in women referred from the BCSP, compared with 6% for women referred from other clinical areas (P < 0.001). During this same period of time, the proportion of women at CCH with localized breast cancer increased from 30% in 1980-1983 to 40% from 1984-1988 (P < 0.05), an increase that can be attributed to the BCSP. Only 21% of the breast cancers detected by the BCSP were found by mammography alone. Of these, 91% were localized. The BCSP has had an impact on the proportion of early breast cancer diagnosed at CCH. Despite these efforts, the proportion of early breast cancer diagnosed at CCH (12%) is significantly less than that seen for all African-American women with breast cancer in Illinois (32%; P < 0.001).