Research Article

Prevalence of Elevated Alanine Aminotransferase by Diagnostic Criterion, Age, and Gender among Adolescents

Table 1

Baseline descriptive statistics for serum alanine aminotransferase levels (U/L) stratified by gender among the adolescents (aged 10–17 years) of Shenzhen, China, 2017–2018.

SampleMeanSDMinPercentilesMax
5th10th25th50th75th90th95th99th

Overall (years)
 10.0–10.96011.255.043679101314153339
 11.0–11.996712.236.8537891114172038141
 12.0–12.9151112.679.2917891113182248206
 13.0–13.947114.8521.8437891215202776415
 14.0–14.9110114.2112.7617891114223368193
 15.0–15.9178915.5719.5937891116243575495
 16.0–16.9113615.8015.5437791216253681213
 17.0–17.924615.2911.384789121625336593
 10.0–17.9728114.2614.7717891115213067495
Boys (years)
 10.0–10.93311.215.586679101214153139
 11.0–11.949013.368.52478101215182346141
 12.0–12.989913.398.8027891114192550113
 13.0–13.926913.1710.1247891114192550138
 14.0–14.954616.7416.36178101218274092193
 15.0–15.9101718.2324.313781013182940116495
 16.0–16.962418.5119.453781013193350102213
 17.0–17.913617.1613.6247810121832496593
 10.0–17.9401415.9617.02178101216253779495
Girls (years)
 10.0–10.92711.304.3937710111314162528
 11.0–11.947711.074.243679101216182740
 12.0–12.961211.629.8916791012161943206
 13.0–13.920217.0731.1537891216223096415
 14.0–14.955511.726.892678101316214368
 15.0–15.977212.069.4836781013182346186
 16.0–16.951212.517.443779111420243688
 17.0–17.911012.987.174789121519222969
 10.0–17.9326712.1811.0616791013172246415

ALT: alanine aminotransferase; SD: standard deviation.