Affiliation:
1. New York Medical College School of Medicine Valhalla New York USA
2. Louisiana State University Health and Sciences Center School of Medicine Shreveport Louisiana USA
3. Department of Emergency Medicine University of New Mexico Hospital Albuquerque New Mexico USA
4. Bowers Neurosurgical Frailty and Outcomes Data Science Lab Albuquerque New Mexico USA
5. Department of Neurosurgical Sciences University of New Mexico Hospital Albuquerque New Mexico USA
Abstract
AbstractBackgroundQuality measures determine reimbursement rates and penalties in value‐based payment models. Frailty impacts these quality metrics across surgical specialties. We compared the discriminatory thresholds for the risk analysis index (RAI), modified frailty index‐5 (mFI‐5) and increasing patient age for the outcomes of extended length of stay (LOS [eLOS]), prolonged LOS within 30 days (pLOS), and protracted LOS (LOS > 30).MethodsPatients ≥18 years old who underwent neurosurgical procedures between 2012 and 2020 were queried from the ACS‐NSQIP. We performed receiver operating characteristic analysis, and multivariable analyses to examine discriminatory thresholds and identify independent associations.ResultsThere were 411,605 patients included, with a median age of 59 years (IQR, 48–69), 52.2% male patients, and a white majority 75.2%. For eLOS: RAI C‐statistic 0.653 (95% CI: 0.652–0.655), versus mFI‐5 C‐statistic 0.552 (95% CI: 0.550–0.554) and increasing patient age C‐statistic 0.573 (95% CI: 0.571–0.575). Similar trends were observed for pLOS‐ RAI: 0.718, mFI‐5: 0.568, increasing patient age: 0.559, and for LOS>30‐ RAI: 0.714, mFI‐5: 0.548, and increasing patient age: 0.506. Patients with major complications had eLOS 10.1%, pLOS 26.5%, and LOS >30 45.5%. RAI showed a larger effect for all three outcomes, and major complications in multivariable analyses.ConclusionIncreasing frailty was associated with three key quality metrics that is, eLOS, pLOS, LOS > 30 after neurosurgical procedures. The RAI demonstrated a higher discriminating threshold compared to both mFI‐5 and increasing patient age. Preoperative frailty screening may improve quality metrics through risk mitigation strategies and better preoperative communication with patients and their families.
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