Table 1 Baseline characteristics of studies included in the meta-analysis.

From: Rivaroxaban for thromboprophylaxis after total hip or knee arthroplasty: a meta-analysis with trial sequential analysis of randomized controlled trials

Source

Intervention (dose, timing of first dose after surgery)

Type of surgery

Surgery duration (minutes)

Use of neuraxial anaesthesia (%)

No. of patients

Mean age (years), female (%), mean weight (kg)

Day of venography

Follow up (days)

Experimental group

Control group

Eriksson 2006a

Rivaroxaban 2.5, 5, 10, 20, or 30 mg twice daily, 5–9 days (6–8 hours)

Enoxaparin 40 mg once daily, 5–9 days (about 12 hours*)

THA

82

70

722

65, 59, 77

5–9

38–68

Eriksson 2006b

Rivaroxaban 10, 20, or 30 mg once daily, 5–9 days (6–8 hours)

Enoxaparin 40 mg once daily, 5–9 days (about 12 hours*)

THA

84

62

873

66, 64, 75

6–10

35–69

Eriksson 2007

Rivaroxaban 2.5, 5, 10, 20, or 30 mg twice daily, rivaroxaban 30 mg once daily, 5–9 days (6–8 hours)

Enoxaparin 40 mg once daily, 5–9 days (about 12 hours*)

THA

NA

73

641

64, 54, 79

5–9

38–68

Eriksson 2008

Rivaroxaban 10 mg once daily, 35d (6–8 hours)

Enoxaparin 40 mg once daily, 35 days (about 12 hours*)

THA

91

70

4541

63, 56, 78

36

66–71

Kakkar 2008

Rivaroxaban 10 mg once daily, 31–39 days (6–8 hours)

Enoxaparin 40 mg once daily, 14 days (about 12 hours*) +placebo 30 days

THA

93

71

2509

62, 53, 75

32–40

62–75

Lassen 2008

Rivaroxaban 10 mg once daily, 10–14 days (6–8 hours)

Enoxaparin 40 mg once daily, 10–14 days (about 12 hours*)

TKA

97

79

2531

68, 67, 81

11–15

41–50

Turpie 2005

Rivaroxaban 2.5, 5, 10, 20, or 30 mg twice daily, 5–9 days (6–8 hours)

Enoxaparin 30 mg twice daily, 5–9days (12–24 hours)

TKA

91

53

621

66, 55, 89

5–9

37–67

Turpie 2009

Rivaroxaban 10 mg once daily, 10–14 days (6–8 hours)

Enoxaparin 30 mg twice daily, 10–14 days (12–24 hours)

TKA

100

81

3148

65, 64, 84

11–15

40–49

Zou 2014

Rivaroxaban 10 mg once daily, 10–14 days (12 hours)

Enoxaparin 40 mg once daily, 14 days (12 hours)

TKA

85

100%

214

65, 76, NA

8–14, 22–28

28

  1. THA: total hip arthroplasty; TKA: total knee arthroplasty; NA: not available.
  2. *Administered preoperatively; other first doses were administered postoperatively.
  3. Color Doppler ultrasonography was performed.