Coincidence of consensus and target values of 14 biochemical variables in external quality assessment of Theran laboratories, 1995-2002
Background :
External quality assessment referred to the survey of different laboratories' results of a unique specimen as compared with a reliable reference. These assessments have been introduced since 1988 in Iran . Results were processed according to techniques of measurement and their accuracy was checked against the reference value.
Methods :
We have gathered results of 14 parameters in 9 courses of external quality assessment, then compare the mean of each course with the expected value using paired t-test.
Results :
Results have revealed the coincidence of measured parameters with expected results.
Conclusion :
Despite the empirical nature of consensus hypothesis, it is revealed to be true in external quality assessment, thus it can be used to calculate the target value.
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