A math problem for accountable care organizations
By federal rules, an organization must serve at least 5,000 beneficiaries to be a Medicare ACO. Why? One reason is that the bonuses for which cost-saving ACOs would be eligible are contingent on meeting quality benchmarks. For example, there are quality targets relating to appropriate care for patients with diabetes, hypertension, coronary artery disease, etc. However, as is true for any measurement, an ACO’s quality metrics will be, statistically speaking, relatively imprecise if they are only computed for a small number of patients. The more patients, the lower the standard error of a mean value. Continue Reading