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Table 3 Test data source and data extraction (incidence rate of DVT)

From: Traditional Chinese and western medicine for the prevention of deep venous thrombosis after lower extremity orthopedic surgery: a meta-analysis of randomized controlled trials

First author and year

DVT diagnosis

Experimental group

Control group

DVT site

Bi CQ 2009 [12]

Color Doppler ultrasound

0/35 (0.00%)

1/35 (2.86%)

Not mentioned

Chen CL 2014 [13]

Not mentioned

1/48 (2.1%)

4/48 8.3%

Not mentioned

Chen T 2016 [14]

Not mentioned

2/45 (4.44%)

15/45 (33.33%)

Not mentioned

Ge XL 2007 [15]

Color Doppler ultrasound, Angiography

0/30 (0%)

2/30 (6.67%)

Distal thrombosis of the lower limbs

He Y 2013 [16]

Color Doppler ultrasound

5/62 (8.1%)

7/62 (11.3%)

Not mentioned

Huang SX 2009 [17]

Color Doppler ultrasound

2/60 (3.3%)

12/60 (20%)

Not mentioned

Huang XG 2010 [18]

Color Doppler ultrasound

4/31(12.9%)

7/32 (21.9%)

Popliteal vein thrombosis 3 case, calf venous plexus 8 case

Jiang KW 2011 [19]

Color Doppler ultrasound, Angiography

12/65 (18%)

8/73 (11%)

Femoral vein thrombosis 1 case, popliteal vein thrombosis 1 case, gastrocnemius thrombosis 18 case

Li DF 2015 [20]

Not mentioned

2/25 (8.0%)

4/25 (16.0%)

Not mentioned

Li JH 2015 [21]

Color Doppler ultrasound

1/44 (2.3%)

6/41 (14.6%)

Not mentioned

Lin X 2010 [22]

Color Doppler ultrasound

4/40 (10.0%)

10/40 (25.0%)

Not mentioned

Shao ZH 2016 [23]

Color Doppler ultrasound

1/45 (2.0%)

6/45 (13.0%)

Lower limb femoral vein

Shi M 2011 [24]

Color Doppler ultrasound

0/29 (0%)

0/34 (0%)

Lower limb femoral vein

Wang XG 2017 [25]

Color Doppler ultrasound

1/34 (2.94%)

2/34 (5.88%)

Not mentioned

Xiao G 2015 [26]

Not mentioned

0/38 (0%)

4/38 (10.53%)

Not mentioned

Yuan SH 2009 [27]

Color Doppler ultrasound

1/28 (3.57%)

6/26 (23.07%)

Not mentioned

Zhai JB 2016 [28]

Color Doppler ultrasound

1/38(2.6%)

6/38 (15.8%)

Not mentioned

Zhang FY 2009 [29]

Color Doppler ultrasound

4/45 (8.9%)

7/42 (16.7%)

Femoral vein thrombosis 7 case, popliteal vein thrombosis 4 case

Zhao Q 2017 [30]

Color Doppler ultrasound

9/95 (9.5%)

26/95 (27.4%)

Not mentioned

Zhou ZQ 2010 [31]

Color Doppler ultrasound

5/73 (6.8%)

11/109 (10.1%)

Not mentioned