Along with the socioeconomic factor of health disparities, race is another key factor. The United States historically had large disparities in health and access to adequate healthcare between races, and current evidence supports the notion that these racially centered disparities continue to exist and are a significant social health issue. The disparities in access to adequate healthcare include differences in the quality of care based on race and overall insurance coverage based on race. A 2002 study in the "Journal of the American Medical Association" identifies race as a significant determinant in the level of quality of care, with blacks receiving lower quality care than their white counterparts. This is in part because members of ethnic minorities such as African Americans are either earning low incomes, or living below the poverty line. In a 2007 Census Bureau, African American families made an average of $33,916, while their white counterparts made an average of $54,920. Due to a lack of affordable health care, the African American death rate reveals that African Americans have a higher rate of dying from treatable or preventable causes. According to a study conducted in 2005 by the Office of Minority Health—a U.S. Department of Health—African American men were 30% more likely than white men to die from heart disease. Also African American women were 34% more likely to die from breast cancer than their white counterparts. Additionally, among African American and Latino infants, mortality rates are 2 to 3 times higher than other racial groups.