Assessing screening mammography utilization in an urban area.

This study was conducted to determine the predictors of screening mammography among women 40 years old and older residing in South Central Los Angeles, California. The population is predominately African American and Hispanic. Using Computer Assisted Telephone Interview (CATI) software and the Random Digit Dialing (RDD) method, a 54-item, 20-min questionnaire was administered to 505 women. All interviews were conducted in English or Spanish. The Health Belief Model provided the conceptual framework for the design of the questionnaire. A majority (81.8%) of the participants reported having at least one mammogram in their lifetime, with African Americans reporting the lowest rate (74.7%). Multiple logistic regression analyses found that 4 of the 23 independent variables assessed were predictive of ever users of mammography (p < 0.05), while 6 independent variables were predictive of never users of mammography (p < 0.05). A significant finding of this study is the lower rate of screening mammography utilization in this sample compared to estimates for the general population. The results of this study also suggest that substantial improvements in the rate of screening mammography could be achieved if women in their 40s, who are without health insurance, were referred by their physicians to have affordable mammograms every year or two.