Application of fresh whole blood in comparison and bias estimation between different hematocyte analyzers / 国际检验医学杂志

ABSTRACT

Objective To compare the detection results and estimate the bias of two hematocyte analyzers of different brands . Methods Sysmex XE‐2100 hematocyte analyzer and Abbott CD‐1700 hematocyte analyzer were chosen to be the reference instru‐ment and comparison instrument ,respectively .40 cases of fresh whole blood samples were collected for the detection of WBC ,RBC , HGB ,HCT ,MCV ,MCH ,MCHC ,and PLT respectively by the two instruments .The correlation coefficient (r) ,regression equa‐tions and bias were calculated and compared to determine the comparability of the two instruments .Results The precisions of two hematocyte analyzers were satisfactory .When fresh whole blood was used as calibrators ,the results of all eight items of the two in‐struments had good correlations (r>0 .975) ,and the relative bias was acceptable .Conclusion The results of two hematocyte ana‐lyzers are comparable .With fresh whole blood using in the comparison test between different hematocyte analyzers ,systematic er‐rors can be discovered in time .