开发和验证用于预测产前妇女产后出血的诺米克图:一个回顾性病例控制研究
Yihan Zheng1, Li Zhang, Xizhu Wu
1Department of Anesthesiology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, China.
Medicine
|November 13, 2024
概括
这项研究开发了一种名谱来预测产后出血在孕前患者,识别关键的危险因素,如贫血和白细胞计数,以更好的临床决策.
科学领域:
- 产科和妇科 产科和妇科
- 孕产妇和胎儿医学 孕产妇和胎儿医学
- 临床预测建模临床预测建模
背景情况:
- 孕前是产后出血 (PPH) 的重要危险因素.
- 准确的预测PPH在预先怀孕的妇女对于及时干预至关重要.
- 现有的预测工具可能缺乏这种高风险人群的特异性或适用性.
研究的目的:
- 开发和验证用于预测产后出血风险在孕前妇女的nomogram.
- 在这个队列中确定PPH的显著临床预测因素.
- 为临床决策提供一个实用的工具.
主要方法:
- 追溯病例控制研究,涉及542名经过阴道分娩的孕产前妇女.
- 使用最小绝对收缩和选择运算符 (LASSO) 回归来进行变量选择.
- 开发了一种基于多变量逻辑回归的命名图,并使用ROC和校准曲线验证了其性能.
主要成果:
- 确定了白细胞计数,第三阶段的分娩,贫血和分娩止痛作为PPH的重要预测因素.
- 诺米图表表现出良好的预测性能,曲线下的面积 (AUC) 为0.867 (训练) 和0.882 (测试).
- 该模型显示了良好的校准,C指数为0.867.
结论:
- 开发的诺米克图是预测产后出血的可靠和经过验证的工具,用于预先怀孕的妇女.
- 它提供了良好的灵敏度和特异性,帮助临床医生进行风险评估和管理.
- 这种工具可以支持基于证据的决策,以改善母亲的结果.
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