RESUMEN
Pay-for-performance (p4p) has been tried in all healthcare settings to address ongoing deficiencies in the quality and outcomes of care. The evidence for the effect of these policies has been inconclusive, especially in acute care. This systematic review focused on patient safety p4p in the hospital setting. Using the PRISMA guidelines, we searched five biomedical databases for quantitative studies using at least one outcome metric from database inception to March 2023, supplemented by reference tracking and internet searches. We identified 6,122 potential titles of which 53 were included: 39 original investigations, eight literature reviews and six grey literature reports. Only five system-wide p4p policies have been implemented, and the quality of evidence was low overall. Just over half of the studies (52 %) included failed to observe improvement in outcomes, with positive findings heavily skewed towards poor quality evaluations. The exception was the Fragility Hip Fracture Best Practice Tariff (BPT) in England, where sustained improvement was observed across various evaluations. All policies had a miniscule impact on total hospital revenue. Our findings underscore the importance of simple and transparent design, involvement of the clinical community, explicit links to other quality improvement initiatives, and gradual implementation of p4p initatives. We also propose a research agenda to lift the quality of evidence in this field.