. 2018 Jan 15;10(1):48–55. doi: 10.4251/wjgo.v10.i1.48

Table 3.

Summary results of meta-analysis of clinical outcomes

Outcomes	No. of studies	Effect value	95%CI of effect	Heterogeneity
Outcomes	No. of studies	Effect value	95%CI of effect	I² (%)	P value
Tumor size	4	WMD = -0.0.38	-0.699 to 0.362	53.3	0.073
Operation time	5	WMD = 7.17 min	-56.02 to 70.36	92.9	0.000
Blood loss	4	WMD = -47.47 mL	-93.20 to -1.73	63.2	0.043
Postoperative complications	5	OR = 0.93	0.34 to 2.50	0.0	0.858
Postoperative stay	5	WMD = -2.81 d	-3.68 to -1.94	38.7	0.163
Progression-free survival	5	HR = 0.64	0.35 to 1.19	0.0	0.553

WMD: Weighted mean differences.