[验证研究中的等价性和一致性:实用方法论审查]
Silvina Dell'Era1, Vanina Pagotto1
1Universidad Hospital Italiano, Secretaría de Investigación. Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina.
Revista medica del Instituto Mexicano del Seguro Social
|December 19, 2025
概括
准确的统计方法对于验证测量仪器至关重要. 这项研究使用同等性测试和错误指标来评估可穿戴设备.
科学领域:
- 生物统计学 生物统计学
- 医疗器械验证 医疗器械验证
- 可穿戴技术可穿戴技术
背景情况:
- 准确的测量对于验证仪器与参考标准相比至关重要.
- 相当性研究评估了测量工具之间的一致性.
- 可穿戴设备需要严格验证临床使用.
研究的目的:
- 描述用于评估测量仪器等价性的统计方法.
- 在患有慢性呼吸道疾病的患者中,使用身体活动追踪器 (Xiaomi Mi Band 4) 举例说明这些方法.
- 突出在准确性评估中的常见统计错误.
主要方法:
- 利用图形方法和统计测试进行同等性评估.
- 应用了具有预定义等效区的置信区和两个单面测试 (TOST).
- 计算的集团级和个人级协议指标:平均误差 (ME),平均百分比误差 (MPE),平均绝对百分比误差 (MAPE) 和根平均平方误差 (RMSE).
主要成果:
- 证明了对可穿戴步数计数设备的等价性测试的应用.
- 小米Mi Band 4与基于视频的参考方法之间的定量一致性和错误.
- 确定并讨论了常见的统计陷,例如滥用分散图和相关性.
结论:
- 选择适当的统计方法对于确保等效研究的临床和方法有效性至关重要.
- 严格的统计分析是测量仪器可靠验证的关键.
- 描述的方法为评估测量一致性提供了一个强大的框架.
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