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两种检测系统测定糖化血红蛋白相关性分析及偏倚评估

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摘要 目的:比较两种检测系统测定糖化血红蛋白(HbA1c)结果的差异并评价其偏倚。方法:分别使用Bio-Rad D-10糖化血红蛋白分析仪应用全自动离子交换高效液相色谱(HPLC)法、Roche CobasINTEGRA400Plus全自动生化分析仪以免疫法测定HbA1c,对40例血液样本作比对测定,评估两检测系统之间测定结果的相关性和偏倚;应用高低两个水平质控品分别测定两种检测系统的不精密度。结果:两种检测系统测定糖化血红蛋白的结果有良好的相关性(P<0.01),HPLC的总不精密度<2.0%,免疫法总不精密度接近4.0%,符合临床测定的性能要求。以D-10HPLC为参考检测系统,Roche免疫法测定结果的相对偏倚分别为0.03%。结论:D-10HPLC法和Roche免疫法测定糖化血红蛋白的准确度、精密度和偏倚符合临床要求,Roche免疫法测定HbA1c结果变异系数较大,应以HPLC法作为参考检测系统定期作比对分析。
出处 《长治医学院学报》 2012年第5期360-362,共3页 Journal of Changzhi Medical College
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