Post-stroke Depressive Symptoms and Cognitive Performances: A Network Analysis.
Archives of physical medicine and rehabilitation(2023)
Abstract
Objective: To examine the relationships between post -stroke depression and cognition using network analysis. In particular, we identified central depressive symptoms, central cognitive performances, and bridge components that connect these 2 constructs. Design: An observational study. We applied network analysis to analyze baseline data to visualize and quantify the relationships between depression and cognition. Setting: Home and Community. Participants: 202 participants with mild -to -moderate stroke (N=202; mean age: 59.7 years; 55% men; 55% Whites; 90% ischemic stroke). Intervention: Not applicable. Main Outcome Measures: Patient Health Questionnaire (PHQ-8) for depressive symptoms and the NIH Toolbox Cognitive Battery for cognitive performances. Results: Depressive symptoms were positively intercorrelated with the network, with symptoms from similar domains clustered together. Mood (expected influence=1.58), concentration (expected influence=0.67), and guilt (expected influence=0.63) were the top 3 central depressive symptoms. Cognitive performances also showed similar network patterns, with executive function (expected influence=0.89), expressive language (expected influence=0.68), and processing speed (expected influence=0.48) identified as the top 3 central cognitive performances. Psychomotor functioning (bridge expected influence=2.49) and attention (bridge expected influence=1.10) were the components connecting depression and cognition.
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Key words
Cognition,Depression,Network analysis,Neuropsychiatry,Stroke
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