English Other Medical (general) Vet lab tests

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WBC comparison study in Peripheral Blood

A comparison study was conducted at one site with 3 operators

The positive, negative and overall agreement (95% confidence interval within brackets) for the individual morphologies was calculated according to CLSI document H20-A2

Results from a comparison study for WBCs in Peripheral Blood

Table:

Cell class Overall Agreement (%) Positive Agreement (%) Negative Agreement (%) Number of samples

Segmented
neutrophils

Band
neutrophils

Lymphocytes


How are they defined? What do "positive/nagative/overall mean?

Please could anybody give some insights into this? Your help is much appreciated! Thank you.