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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