总和调整的基于证据的切断值:在检测严重的低血和高血症方面,这是一个主要因素
Maria Schmidt1, Daniel Steinbach1, Martin Federbusch1
1Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Leipzig Medical Center, Leipzig, Germany.
Clinical chemistry and laboratory medicine
|December 14, 2023
概括
准确评估严重的低血和高血是至关重要的. 这项研究开发了一种新的调整的 (aCa) 方程和切断值,与总 (tCa) 相比,提高了分类准确性.
科学领域:
- 临床化学 临床化学
- 实验室医学 实验室医学
- 内分泌学 在内分泌学.
背景情况:
- 严重的低血和高血需要及时治疗.
- 自由 (fCa) 是黄金标准,但具有分析前的挑战.
- 总 (tCa) 和调整 (aCa) 是广泛使用的,但有解释问题.
研究的目的:
- 导出局部调整的 (aCa) 方程并建立基于证据的切断值.
- 为了比较aCa和tCa的诊断准确度,用于严重的低血和高血.
- 改善生物标志物的解释和可比性.
主要方法:
- 从实验室数据使用线性回归推导出局部aCa方程.
- 使用科恩的 κ. 评估了fCa,tCa和aCa之间的协议.
- 严重低血和高血的决定值是通过间接方法确定的.
主要成果:
- 从9756名患者的测量结果创建了一个局部aCa方程.
- 衍生出的aCa截止值 (1.95/3.15 mmol/L) 与tCa截止值 (1.6/2.9 mmol/L) 不同.
- 在评估严重的低血和高血症时,aCa的准确性高于tCa (κ=0.489/0.812与0.445/0.744).
- 使用aCa与基于证据的截止值正确分类了88.3%的错误分类tCa测量.
结论:
- 对aCa和tCa的优化切断可以提高患者的护理.
- 局部衍生的aCa方程提供了最小的改进,但需要仔细检查切线.
- 改善生物标志物的解释对于准确的诊断和治疗至关重要.
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