Random variation and systematic error caused by various preanalytical variables, estimated by linear mixed-effects models

Article ID	Journal	Published Year	Pages	File Type
8313837	Clinica Chimica Acta	2013	6 Pages	PDF

Abstract

âº A model for estimating preanalytical variation and systematic error is essential. âº Using linear mixed-effects models is an effective approach. âº Pneumatic tube system had systematic and random effects on some analytes. âº Using butterfly needles had small effects on some analytes.

Keywords

GGT SST ALT Random variation TOOS γ-glutamyltransferase Gum Alanine aminotransferase ALP Alkaline phosphatase Sample handling H-index lactate dehydrogenase Preanalytical variables Linear mixed-effects models Creatine kinase