为DiaSorin LIAISON H. Pylori便抗原测试优化不确定的区域
Natalia Volodko1, Mathew P Estey1, Dustin Proctor1
1Alberta Precision Laboratories, Edmonton, AB, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada.
Clinical biochemistry
|October 9, 2025
概括
这项研究重新定义了Helicobacter pylori便抗原测试 (HpSAT) 的不确定的区域,提高了诊断准确度. 一个更宽的区域 (0.80-<3.00) 将H. pylori检测的错误结果最小化.
科学领域:
- 胃肠病学 胃肠病学
- 临床诊断 临床诊断 临床诊断
- 微生物学 微生物学
背景情况:
- 杆菌 (H. pylori) 感染是上部胃肠道疾病的主要危险因素.
- 便抗原测试 (HpSAT) 是检测H. pylori的一种常见方法.
- 制造商推的HpSAT不确定的区域 (0.90-<1.10) 在临床实践中显示出很高的变化.
研究的目的:
- 为了为HpSAT测试建立一个最佳的不确定区域.
- 用分子检测 (qPCR) 作为参考标准.
- 用尿素呼吸试验 (UBT) 数据来证实发现.
主要方法:
- 分析了379名患者的HpSAT和便分子 (qPCR) 结果.
- 使用后勤回归来模型HpSAT指数值与PCR阳性.
- 评估不同不确定区域的临床性能和标记率.
主要成果:
- 后勤回归确定了一个0.80-<5.00的最佳不确定的区域.
- 经过修改的0.80-<3.00区域显示出高精度,不确定率为12.9%.
- 提高上限降低了虚假阳性率,超过3.00的回报率下降.
结论:
- 制造商的HpSAT不确定的区域太狭窄,无法可靠的临床使用.
- 从逻辑回归得出的更宽的区域 (0.80-<3.00) 提高了诊断准确度.
- 拟议的区域平衡了准确性,并最大限度地减少了H. pylori诊断的不确定结果.
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