Pediatric reference interval verification for 16 biochemical markers on the Alinity ci system in the CALIPER cohort of healthy children and adolescents
Author:
Bohn Mary Kathryn12, Schneider Randal3, Jung Benjamin12, Adeli Khosrow12
Affiliation:
1. CALIPER Program, Department of Pediatric Laboratory Medicine , The Hospital for Sick Children , Toronto , ON , Canada 2. Department of Laboratory Medicine and Pathobiology , University of Toronto , Toronto , ON , Canada 3. Abbott Diagnostics , Abbott Park , IL , USA
Abstract
Abstract
Objectives
Special chemistry parameters are useful in the diagnosis and management of inherited disorders, liver disease, and immunopathology. Evidence-based pediatric reference intervals (RIs) are required for appropriate clinical decision-making and need to be verified as new assays are developed. This study aimed to evaluate the applicability of pediatric RIs established for biochemical markers on the ARCHITECT for use on newer Alinity assays.
Methods
An initial method validation was completed for 16 assays, including precision, linearity, and method comparison. Sera collected from approximately 100 healthy children and adolescents as part of the Canadian Laboratory Initiative on Pediatric Reference Intervals (CALIPER) were also analyzed on the Alinity c system. Percentage of results within established ARCHITECT RIs were calculated and considered verified if ≥90 % fell within established limits. New RIs were established for three electrolytes, glucose, and lactate wherein no data were previously reported.
Results
Of the 11 assays for which CALIPER pediatric RIs were previously established on ARCHITECT assays, 10 met the verification criteria. Alpha-1-antitrypsin did not meet verification criterion and a new RI was established. For the other 5 assays, de novo RIs were derived following analysis of 139–168 samples from healthy children and adolescents. None required age- and sex-partitioning.
Conclusions
Herein, pediatric RIs were verified or established for 16 chemistry markers in the CALIPER cohort on Alinity assays. Findings support excellent concordance between ARCHITECT and Alinity assays with one exception (alpha-1-antitrypsin) as well as robustness of age- and sex-specific patterns originally reported by CALIPER in healthy Canadian children and adolescents.
Funder
Institute of Nutrition, Metabolism and Diabetes Abbott Laboratories
Publisher
Walter de Gruyter GmbH
Subject
Biochemistry (medical),Clinical Biochemistry,General Medicine
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