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Table 1 Characteristics of the studies included in the meta-analysis

From: Application of postoperative autotransfusion in total joint arthroplasty reduces allogeneic blood requirements: a meta-analysis of randomized controlled trials

         Study group Control group
Study Year Country Type of surgery Sample size Age Men% transfusion threshold (Hb) Patients number (n) Autotransfusion system Patients number (n) Treatment
Heddle [12] 1992 Canada TKA 79 70.16 35.4 <9 g/dl 39 Solcotrans 40 Regular drain
Adalberth [13] 1998 Sweden TKA 73 72 45.6 <9 g/dl 24 Solcotrans 25
24
Regular drain
No drain
Thomas [14] 2001 UK TKA 231 69.63 42.9 <9 g/dl 115 Cell Saver 5 Haemonetics 116 Regular drain
Cheng [15] 2005 Hong Kong TKA 60 70.53 30 <9 g/dl 26 DONOR 34 Regular drain
Dramis [29] 2006 UK TKA 49 70.04 30.61 <9 g/dl 32 CellTrans 17 Regular drain
Abuzakuk [30] 2007 UK TKA 104 68.5 41.34 <9 g/dl 52 Bellovac 52 Regular drain
Moonen [17] 2007 UK TKA
THA
77
83
69.25 14.38 ASA classification 45
35
Bellovac, AstraTech AB
Bellovac, AstraTech AB
32
48
Regular drain
Regular drain
Smith [16] 2007 UK THA 158 74.54 48.1 <8 g/dl 76 ABTrans 82 Regular drain
Amin [31] 2008 UK TKA 178 70.35 46.07 <8 g/dl 92 Bellovac 86 Regular drain
Atay [2] 2010 Turkey THA
TKA
36
41
59.33
66.76
33.33
21.95
<8 g/dl 17
20
Transolog
Transolog
19
21
Regular drain
Regular drain
Cheung [18] 2010 UK THA 153 68.12 45.1 Made by the ward doctors 53 Bellovac 52
48
Regular drain
No drain
Horstmann [32] 2012 Netherland THA 100 68.8 27 ASA classification 50 Bellovac 50 No drain
Kleinert [33] 2012 Switzerland THA 120 65.33 49.17 <8 g/dl 40 Bellovac 40
40
Regular drain
No drain
Sarkanovic [7] 2013 Serbia TKA 112 66.5 23.21 <8.5 g/dl 55 Cell Saver 57 Regular drain
Horstmann [24] 2014 Netherland TKA 115 68.48 29.57 ASA classification 59 Bellovac 56 No drain
Thomassen [23] 2014 Netherland TKA
THA
165
219
68.9 25.58 <8 g/dl 78
116
Bellovac
Bellovac
87
103
No drain
No drain
Teetzmann [22] 2014 Norway THA 161 73 37.94 clinical judgement 74 Sangvia 87 No drain
  1. TKA total knee arthroplasty, THA total hip arthroplasty