PMID- 33480088 OWN - NLM STAT- MEDLINE DCOM- 20211109 LR - 20211109 IS - 1098-2825 (Electronic) IS - 0887-8013 (Print) IS - 0887-8013 (Linking) VI - 35 IP - 4 DP - 2021 Apr TI - Establishment of age- and sex-specific reference intervals for serum liver function tests in pediatric population aged 1-<18 years: A prospective study. PG - e23708 LID - 10.1002/jcla.23708 [doi] LID - e23708 AB - BACKGROUND: The diagnosis, treatment, and prognosis of pediatric diseases rely on the accurate establishment of the reference interval (RI). This study aimed to establish pediatric RIs for liver function tests and evaluated the correlation of the analytes. METHODS: Pediatric population (aged 1-<18 years) was prospectively recruited in Jilin Province, China. Analytes detected by Ortho VITORS 5600 automatic biochemical analyzer. All strata were divided using the regression tree and Harris and Boyd's method. The dynamic changes of RI were evaluated by the lambda-mu-sigma method. RESULTS: Reference individuals were comprised of 6,322 children and adolescents. Age and sex differences were present in all analytes except serum total protein. The serum albumin, total protein, gamma-glutamyl transferase, total bilirubin, and unconjugated bilirubin levels increased with age while serum aspartate aminotransferase was opposite. The serum alanine aminotransferase level reached a trough at the age of 5 and later steadily in males but slowly decreased in females. The serum alkaline phosphatase level dropped rapidly after reaching a peak at 9 years old in females and 12 years old in males. RIs were divided into 11 partitions at most and 5 partitions at least. The strongest correlation between analytes was total bilirubin and unconjugated bilirubin (r = 0.788), followed by total bilirubin and albumin (r = 0.511). CONCLUSIONS: Analytes show unique dynamic changes in pediatric population. The correlations among liver function tests can inform future studies of particular variables. Age- and sex-special pediatric RIs should be established to help an accurate diagnosis of disease. CI - (c) 2021 The Authors. Journal of Clinical Laboratory Analysis published by Wiley Periodicals LLC. FAU - Zhu, Xuetong AU - Zhu X AUID- ORCID: 0000-0003-2502-8117 AD - Department of Laboratory Medicine, First Hospital of Jilin University, Changchun, China. FAU - Wang, Kaijin AU - Wang K AUID- ORCID: 0000-0001-5158-8033 AD - Department of Laboratory Medicine, First Hospital of Jilin University, Changchun, China. FAU - Zhou, Qi AU - Zhou Q AUID- ORCID: 0000-0002-5084-8697 AD - Department of Pediatrics, First Hospital of Jilin University, Changchun, China. FAU - Xu, Jiancheng AU - Xu J AUID- ORCID: 0000-0001-8796-271X AD - Department of Laboratory Medicine, First Hospital of Jilin University, Changchun, China. LA - eng GR - JDYYZH-1902002/First Hospital Translational Funding for Scientific &Technological Achievements/ GR - 20170623092TC-09/Jilin Science and Technology Development Program/ GR - 20190304110YY/Jilin Science and Technology Development Program/ GR - 20200404171YY/Jilin Science and Technology Development Program/ PT - Journal Article DEP - 20210122 PL - United States TA - J Clin Lab Anal JT - Journal of clinical laboratory analysis JID - 8801384 SB - IM MH - Adolescent MH - Age Factors MH - Child MH - Child, Preschool MH - Humans MH - Infant MH - Liver Function Tests MH - Prospective Studies MH - Reference Values MH - Serum/*metabolism MH - *Sex Characteristics MH - Statistics, Nonparametric PMC - PMC8059739 OTO - NOTNLM OT - adolescent OT - alkaline phosphatase OT - children OT - liver function OT - reference interval COIS- The authors stated that there are no conflicts of interest regarding the publication of this article. EDAT- 2021/01/23 06:00 MHDA- 2021/11/10 06:00 PMCR- 2021/01/22 CRDT- 2021/01/22 06:30 PHST- 2021/01/06 00:00 [revised] PHST- 2020/11/18 00:00 [received] PHST- 2021/01/07 00:00 [accepted] PHST- 2021/01/23 06:00 [pubmed] PHST- 2021/11/10 06:00 [medline] PHST- 2021/01/22 06:30 [entrez] PHST- 2021/01/22 00:00 [pmc-release] AID - JCLA23708 [pii] AID - 10.1002/jcla.23708 [doi] PST - ppublish SO - J Clin Lab Anal. 2021 Apr;35(4):e23708. doi: 10.1002/jcla.23708. Epub 2021 Jan 22.