数据驱动的,基于两阶段机器学习算法的预测方案,用于评估慢性血液透析患者1年和3年死亡风险
Wen-Teng Lee1, Yu-Wei Fang1,2, Wei-Shan Chang3,4
1Division of Nephrology, Department of Internal Medicine, Shin-Kong Wu Ho-Su Memorial Hospital, No. 95, Wen-Chang Rd, Shih-Lin Dist., Taipei, 11101, Taiwan.
Scientific reports
|December 5, 2023
概括
机器学习模型可以使用常规实验室数据预测慢性血液透析 (CHD) 患者的死亡风险. 一个逐步随机森林模型在预测心血管疾病患者1年和3年死亡率方面表现出卓越的准确性.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 医疗信息学 医疗信息学
- 数据科学数据科学数据科学
背景情况:
- 慢性血液透析 (CHD) 患者面临显著减少的预期寿命.
- 确定心血管疾病患者的死亡风险因素对于改善结果至关重要.
- 定期透析的血清实验室数据为预测建模提供了潜在的来源.
研究的目的:
- 开发一种基于机器学习 (ML) 的CHD患者的死亡率预测模型.
- 确定导致该人口死亡率的关键风险因素.
- 评估不同的ML算法在预测CHD死亡率方面的性能.
主要方法:
- 800名心血管疾病患者的回顾性观察队列研究.
- 使用五种ML方法分析44个实验室指标:逻辑回归 (LGR),决策树 (DT),随机森林 (RF),梯度增强 (GB) 和极端梯度增强 (XGB).
- 开发基于ML算法的两阶段预测方案,并逐步采用包含重要风险因素的RF模型.
主要成果:
- 与其他ML方法相比,随机森林 (RF) 模型在1年和3年死亡率预测方面表现出更高的准确性和曲线下的面积 (AUC).
- 渐进式射频模型整合了多种ML方法识别的关键风险因素,在预测死亡率方面表现优于LGR.
- 开发的ML模型在预测1年和3年的死亡率方面表现令人满意.
结论:
- 一个两阶段的ML算法,特别是阶段式RF,有效预测心脏病患者的死亡率.
- 这项研究强调了常规实验室数据对于心脏病风险分层的有用性.
- 这些发现可以帮助科医生以患者为中心的决策和早期识别高风险个体.
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