Cognitive and emotional predictors of quality of life and functioning after COVID‐19

Abstract

ObjectiveA long‐term decline in health‐related quality of life (HRQoL) has been reported after coronavirus disease 2019 (COVID‐19). Studies with people with persistent symptoms showed inconsistent outcomes. Cognition and emotion are important determinants in HRQoL, but few studies have examined their prognostic significance for HRQoL and functionality in post‐COVID patients with persisting symptoms. We aimed to describe QoL, HRQoL, and functioning in individuals post‐COVID with varying COVID‐19 severities and to investigate the predictive value of cognitive and emotional variables for QoL, HRQoL, and functioning.MethodsIn total, 492 participants (398 post‐COVID and 124 healthy controls) underwent a neurobehavioral examination that included assessments of cognition, mood, QoL/HRQoL (WHOQOL‐BREF, EQ‐5D), and functioning (WHODAS‐II). Analysis of covariance and linear regression models were used to study intergroup differences and the relationship between cognitive and emotional variables and QoL and functioning.ResultsThe Physical and Psychological dimensions of WHOQoL, EQ‐5D, and WHODAS Cognition, Mobility, Life Activities, and Participation dimensions were significantly lower in post‐COVID groups compared with a control group. Regression models explaining 23.9%–53.9% of variance were obtained for the WHOQoL‐BREF dimensions and EQ‐5D, with depressive symptoms, post‐COVID symptoms, employment status, income, and mental speed processing as main predictors. For the WHODAS, models explaining 17%–60.2% of the variance were obtained. Fatigue, depressive symptoms, mental speed processing, and post‐COVID symptoms were the main predictors.InterpretationQoL/HRQoL and functioning after COVID‐19 in individuals with persistent symptoms were lower than in non‐affected persons. Depressive symptoms, fatigue, and slower mental processing speed were predictors of lower QoL/HRQoL and functioning.

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