[Methodological assessment and bias estimation of two serum procalcitonin analysis systems].
OBJECTIVE
To evaluate the comparability and bias of the test results of two detection systems for serum procalcitonin (PCT) under the same laboratory condition.


METHODS
According to the profile NCCLS-EP9-A, the two systems were used to detect PCT to obtain the correlation coefficient and the liner equation for evaluation of the test result bias.


CONCLUSIONS
The test results of PCT showed no significant difference between the two detection systems (P>005) with a kappa value greater than 0.75. The correlation coefficients of both systems were above 0.975, suggesting a consistency between them for clinical detection of PCT.
Department of Clinical Laboratory, First Hospital of Jilin University, Changchun 130021, China. E-mail: zxn57821314@163.com.
Xiaona
X
Zhou
Ailin
A
Wang
Shuyan
S
Sun
D015982:Bias; D001774:Blood Chemical Analysis / Q000379:methods*; D002116:Calcitonin / Q000097:blood*; D015740:Calcitonin Gene-Related Peptide; D006801:Humans; D011498:Protein Precursors / Q000097:blood*
C000606589:CALCA protein, human; D011498:Protein Precursors; D002116:Calcitonin; D015740:Calcitonin Gene-Related Peptide