Laboratory Medicine ›› 2016, Vol. 31 ›› Issue (8): 640-646.DOI: 10.3969/j.issn.1673-8640.2016.08.002

• Orginal Article • Previous Articles     Next Articles

Reference intervals of serum bilirubin for Han children in Changchun

LI Xin, WANG Di, YANG Chun, XU Jiancheng   

  1. Department of Clinical Laboratory,the First Hospital of Jilin University,Changchun 130021,Jilin,China
  • Received:2015-11-19 Online:2016-08-31 Published:2016-09-01

Abstract:

Objective To investigate the reference intervals of serum bilirubin for Han children in Changchun. Methods According to the document C28-A3 issued by the Clinical and Laboratory Standards Institute(CLSI) and the International Federation of Clinical Chemistry and Laboratory Medicine(IFCC),a total of 3 716 healthy children according to exclusion criteria for clinical and laboratory medicine were enrolled,and they were 1 month old-14 years old. They were classified according to age and sex. Serum total bilirubin(TBil),conjugated bilirubin(CBil) and unconjugated bilirubin(UBil) were determined by HITACHI 7600-210 automatic biochemical analyzer. The results were analyzed by SPSS 21.0 and R language 3.0,and then the reference intervals were obtained. Results TBil,CBil and UBil were low under 2 years old,and there was an increase from 2 years old. Bilirubin was stable with no difference for sex from 2 to 5 years old. The level of TBil for boys and girls trended to peak at 12 years old,and then decreased progressively. The reference intervals of TBil,CBil and UBil for <1 year old were 1.90-11.33,0.90-3.41 and 0.60-9.31 µmol/L;for 1 year old were 2.34-12.03,0.84-3.30 and 1.17-8.70 µmol/L;for 2-5 years old and 6 years old(boys) were 2.80-12.82,1.00-3.60 and 1.60-9.72 µmol/L;for 6 years old(girls) and 7 years old were 3.25-15.37,0.95-4.46 and 1.80-11.25 µmol/L;for 8-11 years old were 3.20-16.60,1.20-4.70 and 1.80-12.20 µmol/L;for 12 years old were 2.41-19.77,1.10-5.17 and 1.16-14.95 µmol/L;for 13-14 years old were 1.80-16.33,0.90-4.60 and 0.70-12.62 µmol/L. Conclusions There are age and sex difference for the reference intervals of TBil,CBil and UBil among children. The reference intervals of serum bilirubin should be established according to age and sex in children.

Key words: Total bilirubin, Conjugated bilirubin, Unconjugated bilirubin, Children, Reference intervals

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