Per CLSI on January 9, 2018
CLSI was recently informed of errors and inconsistencies in CLSI document EP09-A3, Measurement
Procedure Comparison and Bias Estimation Using Patient Samples; Approved Guideline—Third
Edition. The issues cited include:
- Inability to replicate some examples provided in the guideline
- Inaccuracy of the bias definition generated when averaging bias over the assay range when the
regression slope was poor
- Incomplete formula for computing the confidence intervals of bias estimates at medical decision
points
- Inadequate coverage of Deming regression principles, especially with regard to the use of
precision profiles
- Insufficient detail on performing bootstrapping for Passing-Bablok parameter confidence interval
estimates
Because of these errors and inconsistencies, EP09-A3 has been withdrawn from the CLSI
document library until appropriate corrections are made.
Please note the errors in EP09-A3 present negligible risk of harm to patients, because laboratories
often use a software package or obtain assistance from a test system manufacturer when computing
measurement procedure comparison statistics.
A detailed
description of the corrections will accompany the forthcoming corrected guideline. If you require
any additional clarification regarding these corrections, please contact CLSI Customer Service
(
[email protected]).
| ISBN(s) : | 1562388886 |
| Published : | 08/30/2013 |
