Condition-specific readmissions measures for heart failure, pneumonia, and heart attack may not accurately or fairly reflect hospital quality, according to a study published this week in the Annals of Internal Medicine. The study found significant differences in hospitals' performance when readmissions were assessed for non-Medicare patients and for conditions other than those currently reported, showing that when these additional factors are taken into account, half of the hospitals would be subject to a change in their financial penalty status.