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Table 4 Data source and data extraction (APTT and PT) of included studies

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 PT APTT
Experimental group   Control group Experimental group   Control group
n Before the drug After the drug n Before the drug After the drug Before the drug n After the drug n Before the drug After the drug
He Y 2013 [16] 62 14.322 ± 0.968 13.492 ± 0.892 62 14.102 ± 1.132 13.321 ± 1.211 38.902 ± 5.232 62 40.024 ± 6.211 62 40.101 ± 6.403 40.883 ± 5.862
Jiang KW 2011 [19] 65 14.248 ± 0.987 13.440 ± 0.795 73 14.037 ± 1.250 13.277 ± 1.661 38.862 ± 6.015 65 38.271 ± 3.915 73 41.797 ± 7.333 41.171 ± 6.741
Shao ZH 2016 [23] 45 11.30 ± 1.65 12.65 ± 1.56 45 11.28 ± 1.57 13.43 ± 1.38 30.99 ± 4.63 45 34.05 ± 4.92 45 31.23 ± 4.38 39.21 ± 5.28
Shi M 2011 [24] 29 13.504 ± 0.857 13.925 ± 1.143 34 13.421 ± 1.009 13.863 ± 0.976 36.982 ± 4.526 29 36.334 ± 5.613 34 37.753 ± 6.667 36.826 ± 4.761
Wang XG 2017 [25] 34 14.17 ± 0.74 13.37 ± 0.83 34 14.26 ± 0.88 13.92 ± 0.59 37.99 ± 8.02 34 35.91 ± 6.95 34 37.25 ± 6.44 36.19 ± 7.93
Xiao G 2015 [26] 38 13.47 ± 1.26 11.84 ± 0.63 38 13.56 ± 1.53 12.73 ± 1.42 31.06 ± 5.87 38 26.15 ± 4.18 38 31.52 ± 6.08 29.33 ± 5.27
Zhao Q 2017 [30] 95 10.08 ± 0.89 14.98 ± 2.04 95 10.06 ± 1.04 12.72 ± 2.07 20.14 ± 3.79 95 37.89 ± 2.95 95 20.56 ± 3.80 29.69 ± 3.17
Zhou ZQ 2010 [31] 73 12.54 ± 1.04 12.55 ± 1.4 109 12.86 ± 1.18 12.85 ± 1.41 36.64 ± 4.35 73 36.79 ± 4.61 109 37.65 ± 5.56 38.01 ± 5.67