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Updated: Jun 4, 2025

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使用机器学习来预测成人体重增加:来自我们所有人的观察分析研究计划的观察分析
Dawda Jawara1, Kate V Lauer1, Manasa Venkatesh1
1Department of Surgery, University of Wisconsin, Madison, Wisconsin.
The Journal of surgical research
|January 1, 2025
概括
机器学习模型显示适度预测体重增加的能力. 添加行为调查数据并没有提高肥胖预防工作的预测准确性.
科学领域:
- 公共卫生 公共卫生
- 生物医学信息学 生物医学信息学
- 机器学习 机器学习
背景情况:
- 肥胖 (体重指数≥30kg/m2),在美国是一个重要的公共卫生问题,需要有效预测体重增加风险.
- 目前的预防策略受到无法准确识别最容易增加体重的个体的阻碍.
- 国家卫生研究院 (NIH) 的"我们所有人"数据集为开发预测模型提供了宝贵的资源.
研究的目的:
- 开发和评估机器学习模型,在2年内预测显著的体重增加 (≥10%的总体重).
- 评估是否结合行为调查数据可以提高这些模型的预测性能,而不是仅仅使用电子健康记录数据.
- 测试结合数据源产生优越体重增长预测的假设.
主要方法:
- 使用了NIH我们所有人的数据集,包括人口统计,生命体征,实验室结果和调查数据 (AUDIT,PROMIS分数).
- 开发了Elastic Net和XGBoost机器学习模型,预测2年内总体体重增加≥10%.
- 采用了60%的培训和40%的测试数据分割,对参数调整进行了10倍的交叉验证,并使用接收器操作特征曲线 (AUC) 下的面积来比较模型性能.
主要成果:
- 研究队列包括34,715名18至70岁的成年人;10.4%的人在2年内增加了≥10%的总体重.
- XGBoost 模型实现了 0.706 的 AUC,而 Elastic Net 则实现了 0.677,这表明预测性能不佳.
- 包括行为调查数据并没有显著提高机器学习模型的预测准确度.
结论:
- 机器学习模型在预测2年体重增加方面表现不佳,但采用调查数据并没有显著改善.
- 未来的研究应该探索我们所有人的数据集中的其他变量,例如基因组数据,以潜在地提高预测模型的准确性.
- 准确预测体重增加仍然是一个挑战,强调需要进一步研究预测因素和方法.
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