Quality specifications for ordinal scale measurements with multiproperty (multiple) urine test strips

Analytical quality specifications for ordinal scale measurements have not been presented so far. Criteria are suggested for multiproperty (multiple) urine test strips based on upper limits of healthy reference intervals, analytical performance and statistical tests applicable to ordinal scales. True...

Full description

Saved in:
Bibliographic Details
Published in:Scandinavian journal of clinical & laboratory investigation 1999, Vol.59 (7), p.523-526
Main Authors: KOURI, T, LAIPPALA, P, KUTTER, D, GANT, V, HALLANDER, H, GUDER, W. G
Format: Article
Language:English
Subjects:
Biological and medical sciences
Clinical Laboratory Techniques - standards
Humans
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Miscellaneous. Technology
Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques
Quality Control
Reagent Strips - standards
Urinalysis - standards
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Analytical quality specifications for ordinal scale measurements have not been presented so far. Criteria are suggested for multiproperty (multiple) urine test strips based on upper limits of healthy reference intervals, analytical performance and statistical tests applicable to ordinal scales. Trueness (accuracy) can be evaluated against an acceptable comparison method by applying sensitivity and specificity concepts, and defining a grey zone with a lower detection limit and an upper confirmation limit. Concordance (agreement) of two or more ordinal scale categories should be evaluated by subtracting random agreement, using Kappa statistics. Repeatability (precision) can be calculated for categorized results using binomial statistics.
ISSN:0036-5513
1502-7686
DOI:10.1080/00365519950185274