Lymph node ratio as a prognostic factor in patients with pathological N2 non-small cell lung cancer

Table 3 Prognostic factors for overall survival retained in a multivariate analysis

Variables	Hazard ration	95% CI	p value
Pathological T factor	1.301	1.020–1.643	0.0531
Histology	0.932	0.546–1.466	0.571
Clinical N stage	1.386	1.047–1.512	0.0143
Skip metastasis	0.722	0.487–0.988	0.123
Lymph node ratio	1.725	1.174–2.152	0.0071

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