Depressive symptoms and low cognitive performance in Chinese older adults: A severity-graded epidemiological analysis and a BARNN-inspired prospective risk-prediction framework with strict participant-level temporal validation
Background Late-life depression is robustly associated with subsequent cognitive impairment, yet the dose-response gradient and temporally validated, uncertainty-aware prediction tools remain understudied in Chinese older adults. Objective To characterize the severity-graded epidemiological association between depressi...