Concurrent Diagnosis of Anxiety Increases Postoperative Length of Stay Among Patients Receiving Esophagectomy for Esophageal Cancer.

OBJECTIVE Psychiatric comorbidities disproportionately affect patients with cancer. While identified risk factors for prolonged length of stay (LOS) after esophagectomy are primarily medical comorbidities, the impact of psychiatric comorbidities on perioperative outcomes is unclear. We hypothesized that psychiatric comorbidities would prolong LOS in patients with esophageal cancer. METHODS The 2016 National Inpatient Sample (NIS) was used to identify patients with esophageal cancer receiving esophagectomy. Concurrent psychiatric illness was categorized using Clinical Classifications Software Refined for ICD-10, creating 34 psychiatric diagnosis groups (PDGs). Only PDGs with >1% prevalence in the cohort were included in the analysis. The outcome of interest was hospital LOS. Bivariable testing was performed to determine the association of PDGs and demographic factors on LOS using rank sum test. Multivariable regression analysis was performed using backward selection from bivariable testing (α≤0.05). RESULTS We identified 1,730 patients who underwent esophagectomy for esophageal cancer in the 2016 NIS. The median LOS was 8 days (IQR 5-12). In bivariable testing, a concurrent diagnosis of anxiety was the only PDG associated with LOS (9 days (IQR 6-14) with anxiety diagnosis vs 8 days (IQR 5-12) with no anxiety diagnosis, p=0.022). Multivariable modeling showed an independent association between anxiety diagnosis and increased LOS (OR 4.82 (1.25-25.23), p=0.022). Anxiety was not associated with increased hospital cost or in-hospital mortality. CONCLUSIONS This analysis demonstrates an independent effect of anxiety prolonging postoperative LOS after esophagectomy in the United States. These findings may influence perioperative care, patient expectations, and resource allocation. This article is protected by copyright. All rights reserved.