Dunseath Gareth J, Bright Dominic, Luzio Stephen D
1 Diabetes Research Unit Cymru, Swansea University, Singleton Park, Swansea, UK.
J Diabetes Sci Technol. 2019 May;13(3):568-574. doi: 10.1177/1932296818821389. Epub 2019 Jan 9.
Hematocrit is known to influence glucose values obtained on some blood glucose meters, with bias observed especially at low and high hematocrit levels. We evaluated the performance of a meter with hematocrit correction technology alongside 3 other commercially available meters. Capillary blood samples from 100 subjects were analyzed in duplicate and compared to the plasma values obtained by reference laboratory analyzer. Bias, error grid, and sensitivity to hematocrit analyses were performed for each meter. Average percentage bias was similar for all meters, however the evaluated meter performed best with respect to error grid analysis, with 100% of values falling within the "no effect on clinical action" and "no risk" categories and did not display any hematocrit associated bias.
已知血细胞比容会影响一些血糖仪所测得的葡萄糖值,尤其是在血细胞比容水平较低和较高时会观察到偏差。我们评估了一款具有血细胞比容校正技术的血糖仪与其他3款市售血糖仪的性能。对100名受试者的毛细血管血样进行了重复分析,并与参考实验室分析仪测得的血浆值进行比较。对每款血糖仪进行了偏差、误差网格以及对血细胞比容分析的敏感性评估。所有血糖仪的平均偏差百分比相似,然而,经评估的这款血糖仪在误差网格分析方面表现最佳,100% 的值落在“对临床行动无影响”和“无风险”类别内,并且未显示任何与血细胞比容相关的偏差。