High expression level of serpin peptidase inhibitor clade E member 2 is associated with poor prognosis in lung adenocarcinoma

Table 2 Univariate analysis

Variables	Cut off	Hazard ratio	95% CI for HR	P value
pT factor	< 2 vs. ≥ 2	3.08	0.596–15.91	0.1795
pN factor	0 vs. ≥ 1	2.787	0.6227–12.48	0.1801
Lymphatic invasion	0 vs. 1	2.375	0.5291–10.66	0.93750
Pleural invasion	0 vs. ≥ 1	3.383	0.7553–15.15	0.1111
Vascular invasion	0 vs. 1	2.623	0.5863–11.73	0.2072
SERPINE2	Low vs. high	5.273	1.151–24.16	0.03228

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