Introduction
Preoperative discussion around postoperative discharge planning have been amplified by the COVID pandemic. We wish to determine if our preoperative frailty screen would predict postoperative LOI.
Methods
This single-institutional study included demographical, procedural, and outcome data from patients ≥65 years who underwent frailty screening prior to a surgical procedure. Frailty was assessed using the Edmonton Frailty Score (EFS). The Operative Severity Score was used to categorize procedures. The Hierarchical Condition Category (HCC) risk-adjustment score as calculated by CMS was included. LOI was defined as an increase in support outside of the home following discharge. Univariable, multivariable logistic regressions, and adjusted post-estimation analyses for predictive probabilities of best fit were performed.
Results
535 patients met inclusion and LOI was seen in 38 (7%) patients. Patients with LOI were older, had a lower BMI, a higher EFS score (7vs.3.0, p<0.001), and a higher HCC score than patients without LOI. Being frail and undergoing a procedure with an OSS ≥ 3 was independently associated with an increased risk of LOI. In addition, social dependency, depression, and limited mobility was associated with an increased risk for LOI. On multivariable modeling, frailty status, undergoing a surgery with an OSS ≥ 3, and having an HCC score ≥ 1 was the most predictive of LOI (OR 12.72, 95% CI: 12.04, 13.44, p<0.001). In addition, self-reported depression, weight loss, and limited mobility was associated with a nearly 11-fold increase risk in postoperative LOI.
Conclusions
This study is novel as it identifies clear, generalizable risk factors for LOI. In addition, our findings support the implementation of preoperative assessments to aid in care coordination and provide specific targets for intervention.