ObjectiveThis study explores the intricate relationship between clozapine use, cardiovascular disease (CVD) risk, and cognitive function in patients with schizophrenia (SCZ). MethodsA cohort comprising 765 patients was stratified based on clozapine usage. Data on demographics, clinical characteristics, and glycolipid metabolism were collected. The Framingham Risk Score and vascular age were calculated using gender-specific Cox regression calculators. Cognitive function was assessed with the Repeatable Battery for Assessment of Neuropsychological Status. ResultsAmong the patients, 34.6 % were clozapine users. Clozapine users exhibited lower systolic blood pressure, high-density lipoprotein cholesterol and total cholesterol (all ps < 0.05). Furthermore, clozapine users exhibited higher PANSS scores, along with lower scores in RBANS scores (all ps < 0.05). Correlation analysis revealed positive correlation between CVD risk in non-clozapine users and negative symptom scores (r = 0.074, p = 0.043), and negative correlation with positive symptom scores and RBANS scores (r = −0.121, p = 0.001; r = −0.091, p = 0.028). Multivariate stepwise regression analysis indicated that attention scores as predictive factors for increased CVD risk in clozapine users (B = −0.08, 95 %CI = −0.11 to −0.03, p = 0.003). ConclusionsPatients with SCZ using clozapine exhibit more severe clinical symptoms and cognitive impairments. Attention emerges as a predictor for increased CVD risk in clozapine users.
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