An analysis of a quality measure, by lead author Dr. Alicia Cooper, a former Brown doctoral student who now works for the State of Vermont, and Dr. Amal Trivedi, associate professor of health services policy and practice at the Brown University School of Public Health, that Medicare Advantage plans self-report to the government finds that the insurers almost always err in their own favor. More elderly receive high-risk medications than the plans acknowledge, according to the study published September 30 in Annals of Internal Medicine.