• Ankush P Ratwani, Kareem I Ahmad, Scott D Barnett, Steven D Nathan, and A Whitney Brown.
• Department of Internal Medicine, Medstar Georgetown University Hospital, Washington, DC, USA.
• Respir Med. 2019 Jul 1; 154: 1-5.

BackgroundThe impact of hospitalization on patient outcomes is increasingly recognized and considered in the prognostication of many pulmonary disorders. We sought to evaluate the impact of hospitalization on survival in connective tissue disease-interstitial lung disease (CTD-ILD) patients.MethodsA chart review of patients with CTD-ILD followed at a tertiary care center was performed. Patients were stratified into two groups based on hospitalization status. Outcomes of the groups were compared using Kaplan-Meier survival analyses as well as multivariate competing risk analysis.ResultsThere were 137 patients identified with confirmed CTD-ILD. Patients who underwent hospitalization for any reason had a significant decrease in transplant-free survival compared to the never hospitalized cohort (3-year survival 60% vs. 94%; p = 0.0001). Hospitalization for ≥7 days was associated with worse outcomes than those hospitalized for <7 days (median survival 1.59 years vs. 7.17 years, p = 0.0012). Based on multivariate competing risk analysis, factors associated with death, with lung transplantation as a competing risk, were age (HR = 1.05 [95% 1.01-1.09]; P = 0.0443), male gender (HR = 4.94 [95% CI: 1.58-15.41]; P = 0.006), and all cause hospitalization (HR = 11.97 [95% CI: 1.36-105.49]; P = 0.0253).ConclusionThis study highlights the impact of hospitalization on subsequent outcomes in the CTD-ILD population with a significantly reduced transplant-free survival demonstrated, especially after cardiopulmonary hospitalization events.Published by Elsevier Ltd.

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