Trajectory of Functional Recovery from 6 to 12 Months in Persons Hospitalized for Severe SARS-CoV-2 Illness

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<h3>Research Objectives</h3> To identify distinct post-acute COVID-19 phenotypes among adults hospitalized for severe SARS-CoV-2 infection and describe multidimensional outcomes and trajectories at 6 and 12 months post-hospitalization. <h3>Design</h3> Prospective, longitudinal data collection in functional, physical, cognitive, and psychological domains at 3, 6, and 12 months post-hospitalization. Retrospective data collection from the acute care and post-acute care settings. <h3>Setting</h3> Acute care and post-acute telephone follow-up. <h3>Participants</h3> English- and Spanish- speaking adults, with decision-making capacity, admitted for inpatient rehabilitation following inpatient rehabilitation for acute COVID-19 related illness (N = 61). <h3>Interventions</h3> N/A. <h3>Main Outcome Measures</h3> Physical, cognitive, and psychological symptoms; self-reported employment status and assistance with ADLs. <h3>Results</h3> Median age 60.8 years; 59% male; 72.1% white; 72.1% non-Hispanic; 26.2% preferred assessment in Spanish. 83% required mechanical ventilation in acute care. Comorbidities were common. We found a high prevalence of persistent symptoms at 6- and 12- months across physical, cognitive, and emotional health outcome domains. Three post-acute phenotypes were identified at 6 months; a "minimally symptomatic" subgroup with minimal symptom endorsement across all domains relative to other subjects (22.95%, n = 14), a "predominantly physical symptoms" subgroup (47.54%, n = 29), and a "globally symptomatic" subgroup (29.51%, n = 18). A similar pattern for phenotypes emerges at 12-months, with 67.21% of subjects falling into the same phenotype at both time points. In the Predominantly Physical Symptom phenotype, 31.0% declined into the Globally Symptomatic Phenotype and 10.3% improved. In the Globally Symptomatic phenotype, 11.1% of participants transitioned to the Minimally Symptomatic phenotype and 16.7% to the Predominantly Physical Symptom phenotype. Compared to premorbid level of employment (50.8%), 24.6% of participants were employed at 12-months. Phenotype at 6-months was a significant predictor of employment at 12-months (B = 2.26, p = .05, OR = 9.6). <h3>Conclusions</h3> Persons with severe COVID-19 illness experience persistent functional limitations and reduced employment up to 12 months post-hospitalization. Distinct recovery subgroups were found suggesting the need for comprehensive assessment and tailored treatment for recovery. <h3>Author(s) Disclosures</h3> The authors declare no relevant conflicts of interest.