Journal of Orthopaedic Surgery and Research

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

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