Abstract
Chart-based surveillance reviews indicate that the incidence of hospital-acquired pressure ulcers (HAPUs) declined 23 percent during 2010-14, equating to an estimated savings of $1 billion during that period. Yet it remains unclear whether the administrative data used to implement three Medicare value-based purchasing programs that target HAPUs indicate similar improvements, and how success varied by HAPU severity. These programs measure and penalize only for more severe ulcers (stage 3 or 4 or unstageable), which are much more costly than less severe cases (stage 1 or 2). We assessed HAPU incidence, severity, and trends using administrative data for 2009-14 from three states. The HAPU incidence we found was approximately one-twentieth of that found in chart-based surveillance review data. HAPU incidence in administrative data declined, but 96 percent of the change was due to a decline in the incidence of less severe HAPUs. Transitioning from administrative data to chart-based surveillance review to measure HAPUs (mirroring changes that have already been made in reporting hospital-acquired infections) and accounting for HAPU severity could improve the validity of HAPU measures for assessing the clinical and financial impact of value-based purchasing interventions.