The prognostic value of separate lymphatic invasion and vascular invasion in oesophageal squamous cell carcinoma: a meta-analysis and systematic review

Table 4 Pooled results of univariate analysis

Indicator	LI		Heterogeneity analysis		Publication bias	VI		Heterogeneity analysis		Publication bias
Indicator	HR (95% CI)	p value	I²	p value	Publication bias	HR (95% CI)	p value	I²	p value	Publication bias
OS	2.08 (1.81–2.38)	< 0.0001	46.5%	0.033	0.127	1.80 (1.60–2.02)	< 0.0001	18.4%	0.258	0.583
RFS	2.62 (1.81–3.78)	< 0.0001	56.4%	0.033	0.035	1.91 (1.53–2.38)	< 0.0001	0%	0.798	0.368

ISSN: 1471-2407