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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