人格障碍一年自伤风险预测（SHARP-PD）：临床风险预测模型开发及内部-外部交叉验证研究

Background.Personality-disorders (PDs) are associated with markedly-increased risk of selfharm.We aimed to develop and validate a risk-prediction model (Self-HArm one-year Risk Prediction in personality disorders [SHARP-PD]) to predict 1-year self-harm in people with newly-diagnosed PD.Methods.This population-based study identified individuals with first-recorded diagnosis of PD in 2002-2021, utilising an electronic-health-record database of public-healthcare service in Hong-Kong.SHARP-PD was developed using binary-logistic-regression model, with Least-Absolute-Shrinkage-and-Selection-Operator