Hospital performance metrics, such as 30-day mortality, are increasingly used in the context of value-based health care assessment and public reporting.
1-3 These metrics provide useful benchmarking data to various stakeholders, including surgeons, patients, policy makers, and payers. For all surgical procedures, monitoring of 30-day outcomes is also mandated for reimbursements by insurance payers and is relatively cheaper and easier to implement from a hospital efficiency standpoint. However, with increasing scrutiny of hospital outcomes in the era of episode-based or bundled payment models implemented by the Centers for Medicare & Medicaid Services (CMS),
4 there has been interest in tracking longer-term patient outcomes for a few reasons. First is that 30-day mortality may not capture all surgery- and non–surgery-related deaths.
1-3 Second, there is a possibility that limiting follow-up to only 30 days may be associated with an increased risk of patients being unavailable for follow-up. Third, there is also some concern for potential perverse incentive to prolong the life of a dying patient past the 30-day barrier and to transfer the patient to another facility before the 30-day cutoff.
5 All these instances can lead to underreporting of true mortality rates from the index procedures.
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