They found that the higher readmission rates were due to disparities related to both race and the hospitals where patients were treated.
“Disparities in health and health care are well-documented in this country, but little was previously known about whether there were disparities in hospital readmissions at the national level,” said Karen Joynt, lead author of the study, a research fellow in the department of health policy and management at HSPH, and a physician at Brigham and Women’s Hospital (BWH) in Boston. “We found important racial disparities among elderly Americans: Black patients were more likely to be readmitted after being discharged from the hospital, and this was especially true if the discharging hospital cared for a high proportion of minority patients.”
Joynt and her colleagues, E. John Orav, associate professor of biostatistics at HSPH, and senior author Ashish Jha, a physician and associate professor of health policy and management at HSPH, analyzed Medicare data on 30-day readmissions after hospitalization for three conditions: heart attack, heart failure, and pneumonia. They found that black patients had about 13% higher odds of readmission than white patients, regardless of where they received their care. Additionally, patients discharged from hospitals with a high proportion of minority patients had about 23% higher odds of readmission than patients discharged from hospitals with a lower proportion of minorities, regardless of race.
The results were even more striking when those two factors were combined. For example, following a heart attack, black patients discharged from hospitals with a high proportion of minorities had 35% higher odds of readmission than white patients discharged from hospitals with a lower proportion of minorities.
Eliminating health disparities and reducing readmissions are two important goals for policymakers. The Patient Protection and Affordable Care Act calls for financial penalties for hospitals that do a poor job of reducing readmissions. “Our findings suggest that to reduce racial disparities in readmissions, policymakers will need to focus not just on race, but also on where minority patients are receiving their care,” said Joynt.
Support for the study was provided by a National Institutes of Health Training Grant, Brigham and Women’s Hospital, Division of Cardiovascular Medicine.
“Thirty Day Readmission Rates for Medicare Beneficiaries by Race and Site of Care,” Karen E. Joynt, E. John Orav, Ashish K. Jha, JAMA, February 16, 2011, Vol. 305, No. 7
For more information:
Harvard School of Public Health is dedicated to advancing the public’s health through learning, discovery and communication. More than 400 faculty members are engaged in teaching and training the 1,000-plus student body in a broad spectrum of disciplines crucial to the health and well being of individuals and populations around the world. Programs and projects range from the molecular biology of AIDS vaccines to the epidemiology of cancer; from risk analysis to violence prevention; from maternal and children’s health to quality of care measurement; from health care management to international health and human rights. For more information on the school visit www.hsph.harvard.edu.