Resection of Liver Metastases: A Treatment Provides a Long-Term Survival Benefit for Patients with Advanced Pancreatic Neuroendocrine Tumors: A Systematic Review and Meta-Analysis

Table 3

Survival outcomes of liver resection group versus nonliver resection group.

Survival outcomes	No. Of studies	No. Of event for liver resection	No. Of event for non-liver resection	OR	95 CI	P Value	Heterogeneity; P,	Meta-analysis model
1-year overall survival	13	571/616	702/908	3.31	2.34, 4.67	<0.001	0.55, 0%	Fixed
3-year overall survival	12	467/607	357/872	4.29	2.71, 6.80	<0.001	0.02, 52%	Random
5-year overall survival	12	410/607	232/872	5.30	3.24, 8.67	<0.001	0.02, 53%	Random