© 2005 American Public Health Association DOI: 10.2105/AJPH.2004.060350
Correspondence: Requests for reprints should be sent to Peter Muennig, MD, MPH, Mailman School of Public Health, Columbia University, 600 W 168th St, 6th Floor, New York, NY 10032 (e-mail: pm124{at}columbia.edu). In their evocative thought experiment, Woolf et al. demonstrate that reducing racial disparities might result in greater gains in life expectancy than would investments in medical technology.1 In calculating reductions in mortality attributable to medical technology, the authors conservatively assumed that medical technology was responsible for 100% of the observed reduction in mortality over the study period. Unfortunately, there is a catch to this assumption that renders it less conservative. Over the 19912000 study frame the authors used, increases in the Gini coefficient occurred.2 This suggests that socioeconomic disparities for the overall population (not just African Americans) worsened. If disparities are causing declines in health, they will hide a portion of the observed gains in life expectancy owing to medical technology. For instance, suppose that increasing disparities resulted in a loss of 1 year of life expectancy for the overall US population over the 19912000 study frame. The actual improvement in life expectancy was 1.5 years.3 Therefore, if improvements in medical technology were responsible for all gains in life expectancy, the actual gains from medical technology would have been 2.5 years rather than the observed 1.5 years. Nonetheless, the study points to a critical issue that requires further examination by policymakers. Most educational interventions produce dollar returns.4 Therefore, shifting societal resources toward improving the educational attainment of African Americans makes sense from a public policy standpoint, regardless of the relative gains in health. References
1. Woolf SH, Johnson RE, Fryer GE, Rust G, Satcher D. The health impact of resolving racial disparities: an analysis of US mortality data. Am J Public Health.2004;94(12):20782081. 2. US Census Bureau. Historical Income TablesIncome Equality. Available at: http://www.census.gov/hhes/income/histinc/ie1.html. Accessed December 6, 2004. 3. Arias E, Anderson R, Kung H, Murphy S, Kochanek K. Deaths: final data for 2001. Natl Vital Stat Rep.2003;52(3):1115.[Medline] 4. Muennig P, Fahs M. The cost-effectiveness of public postsecondary education subsidies. Prev Med.2001; 32(2):156162.[CrossRef][Web of Science][Medline]
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