Network meta-analysis of the prognosis of curative treatment strategies for recurrent hepatocellular carcinoma after hepatectomy

Table 4 Overall heterogeneity of outcome measured by Q test with random effects model and pooled effect size of each subgroup

Outcome	Heterogeneity				Pooled effect (overall)
	Q value	df (Q)	P value	I2	Z value	95%CI	P value
1-yr DFS	224.670	30	< 0.001	86.65	0.672	0.625-0.716	P < 0.001
3-yr DFS	583.665	30	< 0.001	94.86	0.414	0.370-0.46	P < 0.001
5-yr DFS	764.476	32	< 0.001	95.81	0.315	0.276-0.357	P < 0.001
1-yr OS	219.820	46	< 0.001	79.07	0.874	0.850-0.895	P < 0.001
3-yr OS	437.662	45	0.002	89.72	0.642	0.642-0.714	P < 0.001
5-yr OS	730.285	48	< 0.001	93.43	0.546	0.497-0.594	P = 0.068

DFS: Disease-free survival; OS: Overall survival.