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["Supplementary Table 3: International Comparable Studies"]
[null,"Lee (2012)","Mitchell (2013)","Dodgion (2014)","Hsiao (2014)","Bardain (2015)","Kim (2017)","Yang (2017)","Adams (2018)","Karadeniz (2018)","Alexander (2019)","Ardley (2019)","Teuben (2020)","Our study (2020)"]
["Country of recruitment","US","Australia","US","Canada","US","Korea","China","Australia","Turkey","US","UK","Netherlands","Netherlands"]
["Number of participants",89835,1138,14365,3122,630,21,101,907,42,70,30,63,130]
["Age of participants","< 18 years","< 16 years","< 18 years","< 19 years","< 22 years","< 20 years","< 18 years","< 17 years","X","<18 years","4-18 years","<18 years","< 18 years"]
["Male (%)","71.6","66.7","70.4","80.0","X","76.2","67.3","80.8","69.0","62.9","76.7","71.4","63.1"]
["Mean injury grade","X","X","X","2.8","X","3.0","3.3","X","X","2.6","4.0°","X","3.0"]
["Mean ISS ± SD","X","X","16.2 ± 12.1","X","9.9 ± 4.5","20.4","X","X","X","19.9","16.0°","16.0°","21.6 ± 13.7"]
["Bicycle accident as trauma mechanism (%)","X","9.5","X","X","X","X","X","12.7","X","7.1","26.7","11.1","15.4"]
["Isolated splenic injury (%)","X","X","9.1","74.0","79.6","X","32.7","57.6","64.3","31.4","66.7","X","36.2"]
["Splenectomy rate (%)","14.1","X","82.8","9.0","0.0","14.3","21.8","6.5","0.1","4.3˟","20.0","15.9","6.2"]
["Mean ICU stay ± SD","X","4.9","X","X","X","2.8 ± 4.0","1.9","1.9 ± 5.5","3.1","2.3","X","X","3.5 ± 5.6"]
["Mean LOS ± SD","6.5","12.3","3.7 ± 1.1","5°","4.8 ± 2.5῀","22.2 ± 17.5","10.5","8.5 ± 14.2","12.3","6.5","7.6 ± 6.3","X","10.2 ± 9.0"]
[]
["° Median ˟Splenorrhaphy included ῀Only for isolated splenic injuries. Abbreviations: ICU Intensive Care Unit, ISS Injury Severity Score, LOS Length Of Stay, SD Standard Deviation, UK United Kingdom, US United States."]