… This study has a limitation that a commutability test to exclude matrix effects was not
performed [13]. In conclusion, we demonstrated the biases between each peer group means and …

… , the method is suitable for the determination of cholesterol … The bias was expressed as
a relative recovery (R%) by the … of KOH as applied in this study but with a longer time of …

… and validation process and matrix-dependent quality control … reference methods for certain
lipids such as total cholesterol (… % maximum allowable bias to the reference method and a ≤ …

… portability and rigorous quality assurance in the measurement of … outcomes because common
matrix effects are known to impact … , showing negative bias in the method means for some …

… , IVD manufacturers, external quality assessment providers, and suppliers of … example,
if a single-donor sample had a large cholesterol bias of 30% due to interferences, a 1% bias …

… (5% for HDL cholesterol and 4% for LDL cholesterol) … The bias between ICP-MS and routine
methods for each sample … No CM showed matrix effects in c702, but positive matrix effects …

… were stable in pooled serum due to less matrix effect; also, … parameters like the blood glucose,
urea, creatinine, cholesterol, … Unconscious bias and “rounding-off” of results are inevitable. …

… , a good quality control procedure should be established. … The unification of quality control
samples is necessary to meet … This study shows imprecision and BIAS (not always clinically …

… comparison bias with each of the five methods based on … , no matrix effects, the ability to
monitor continuously in real-time… in 160 comparisons of LDL cholesterol fresh blood. The QC …

… The external quality assessment (EQA) scheme is an … 4, the bias of glucose, urea,
cholesterol, and triglyceride in the … The result of the study showed that there was no matrix effect …