摘要
目的比对北京市朝阳区妇儿医院临床科室床旁检验(POCT)血糖仪与日立生化分析仪7600的精密度及准确性,探讨适合基层医院的比对方案。方法从临床采用的强生公司NOVA Stat-Strip血糖仪10台中随机抽取1台,连续测定高、低2个血糖水平的抗凝全血各20次,计算精密度。选取20例不同血糖水平的抗凝全血,分别在10台NOVA Stat-Strip血糖仪与日立生化分析仪7600配对比对。绘制散点图并拟合回归方程,进行配对资料t检验。结果精密度低水平(血糖水平小于5.50mmol/L)血糖仪的标准差为0.16mmol/L,小于GB/T19634-2005(B)标准要求的标准差(0.42mmol/L),高水平(血糖水平大于或等于5.50mmol/L)血糖仪的变异系数为3.4%,小于GB/T19634-2005(B)标准要求的变异系数(7.5%)。10台血糖仪与日立生化分析仪7600相关系数均大于0.95,相关性好,配对t检验,差异有统计学意义(P<0.05)。根据GB/T19634-2005(B)标准,10台血糖仪准确性良好。结论10台血糖仪与日立生化分析仪7600血糖水平检测比对结果的精密度及准确度符合GB/T19634-2005(B)标准要求。比对方案简单易行,可用于临床。
Objective To compare the precision and accuracy between the point of care testing(POCT)blood glucose meter and Hitachi biochemistry analyzer 7600 in detecting the blood glucose level in the women and children hospital of Chaoyang district and to explore a suitable scheme in primary hospitals.Methods One Johnson Johnson NOVA Stat-Strip blood glucose meter was randomly selected from ten meters which were used in clinic.The high and low blood glucose levels were tested 20 times continually in order to get the accuracy.Twenty cases of anticoagulant blood of different glucose levels were tested in 10 sets of Stat-Strip and Analyzer 7600.The scatter plot was drawn and regression equation was fitted,then t test was conducted.Results The standard deviation was 0.16mmol/L for low level precision(the glucose level was less than 5.50mmol/L),which was lower than 0.42mmol/L required in the GB/T19634-2005(B)standard.The coefficient of variation of high level precision glucose meter(the glucose level was higher than 5.50mmol/L)was 3.4%,which was lower than 7.5% required in GB/T19634-2005(B)standard.The correlation coefficient of the ten sets of NOVA Stat-Strip and Analyzer 7600 was higher than 0.95 with statistical significance(P〈0.05).The ten sets NOVA Stat-Strip had good accuracy based on the GB/T19634-2005(B).Conclusion The precision and accuracy of both the ten sets of NOVA Stat-Strip and Analyzer 7600 meets the requirements of GB/T19634-2005(B)standard.The comparison scheme is simple and practicable which can be used in the clinic.
出处
《国际检验医学杂志》
CAS
2016年第21期3009-3011,共3页
International Journal of Laboratory Medicine
关键词
床旁检验
精密度
准确度
相关系数
比对试验
point of care testing
precision
accuracy
correlation coefficient
comparison experiment