Abstract
The current depression assessment tools are limited by subjectivity and potential bias. This study investigated the relationship between heart rate variability (HRV), body composition, and self-reported depressive symptoms to develop an objective depression screening model for Chinese university students. Data from 2,094 students, including demographics, body composition, Self-Rating Depression Scale (SDS) scores, and HRV indicators, were analyzed using SPSS 26.0 to construct a predictive regression model, with accuracy validated in GraphPad Prism 9.4.1. Subsequently, a subgroup of 359 students with depressive symptoms was screened using the model. The results showed no significant differences between the predicted and actual SDS scores (
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