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Table 2 Study characteristic

From: The effects of a tourniquet used in total knee arthroplasty: a meta-analysis

Study Sample size Total size Gender M/F ratio Mean age (years) BMI (kg/m2) Drain Tourniquet duration Anticoagulation
  T NT   T NT T NT T NT   
Tai[21] 36 36 72 9/27 8/28 72.1 71.5 28.6 27.9 N Part None
Ledin[22] 25 23 48 10/15 9/14 70.0 71.0 29.0 28.0 Y Overall Heparin
Zhang[23] 30 30 60 8/22 11/19 72.0 71.0 25.0 26.0 Y Overall Heparin
Li[24] 40 40 80 11:29 3/13 71.0 70.0 27.3 26.8 N Part Heparin
Kageyama[25] 11 11 22 2/9 2/9 73 76.0 NS NS NS NS NS
Matziolis[26] 10 10 20 2/8 3/7 72.4 76.6 28.3 29.5 NS NS NS
Aglietti[27] 10 10 20 3/7 4/6 70.0 68.0 27.9 27.3 Y Part NS
Tetro[5] 33 30 63 15/18 11/19 69.8 69.8 NS NS Y Part Coumarins
Clarke[28] 20 10 30 NS NS NS NS NS NS Y NS NS
Wauke[29] 19 18 37 0/19 0/18 63.2 61.4 NS NS NS NS Heparin
Vandenbussche[30] 40 40 80 9/31 16/24 72.5 68.5 NS NS Y Overall Heparin
Wakankar[31] 37 40 77 11/26 14/26 72.5 71.8 NS NS Y NS Warfarin
Abdel-Salam[32] 40 40 80 17/23 15/25 72.0 74.0 NS NS Y Overall Heparin
  1. T TKA with a tourniquet group, NT TKA without a tourniquet group, N no drainage system was used in TKA, Y drainage system was used in TKA, Part tourniquet was not inflated during the entire operation, Overall tourniquet was inflated during the entire operation, NS not stated.