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机器学习预测了帕金森病患者在多中心观测研究中的跌倒风险
Maria Chiara Malaguti1, Chiara Longo1, Monica Moroni2
1Azienda Provinciale per i Servizi Sanitari (APSS) di Trento, Trento, Italy.
European journal of neurology
|April 30, 2025
概括
机器学习模型可以使用临床数据预测帕金森病 (PD) 患者的跌倒风险. 这些模型有助于识别导致跌倒的因素,使个性化干预措施能够改善患者的生活质量.
科学领域:
- 神经学 神经学
- 生物医学工程 生物医学工程
- 数据科学数据科学数据科学
背景情况:
- 帕金森病 (PD) 的特点是姿势不稳定和步行困难,显著增加跌倒风险.
- 跌倒影响了很大一部分PD患者 (35-90%),这构成了管理的重大挑战.
- 准确的跌倒风险预测和贡献因素的识别对于及时干预至关重要.
研究的目的:
- 开发和验证用于预测PD患者跌倒风险的机器学习 (ML) 算法.
- 使用例行收集的临床数据,识别与跌倒风险相关的因素.
- 评估该算法在多个意大利临床中心的性能.
主要方法:
- 利用来自意大利两个中心 (N=251) 的患者数据进行培训 (N=164) 和内部验证 (N=87).
- 在帕金森病进展标记计划 (PPMI) 研究患者的一个子集上进行了外部验证 (N=65).
- 比较后勤回归 (LR) 和支向量分类器 (SVC) 模型,使用Shapley添加式扩展 (SHAP) 对变量重要性.
主要成果:
- 在训练组中,支持向量分类器 (SVC) 在逻辑回归 (LR) 上略有优势 (AUC:SVC=0.792,LR=0.779).
- 后勤回归 (LR) 在内部 (AUC:LR=0.753,SVC=0.733) 和外部验证队列 (AUC:LR=0.714,SVC=0.676) 中都显示出更高的预测准确度.
- 对LR模型的Shapley添加式解释 (SHAP) 分析确定了与跌倒风险相关的运动和非运动变量.
结论:
- 机器学习模型有效地估计了在不同临床环境中的跌倒风险,促进了个性化干预.
- 这些模型可以提高帕金森病患者的生活质量.
- 由于人口统计和医疗保健系统的变化,预测美国人口的下降带来了挑战.
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