Completely Resected N0 Non-Small Cell Lung Cancer: Prognostic Factors Affecting Long-Term Survival

Table 4

Significant determinants of overall survival in completely resected NSCLC without nodal involvement by Cox proportional hazard model*.

Parameters	Hazard ratio	95% confident interval	𝑃 value
Staging of lung cancer
IA	Reference
IB	1.6	0.9–2.8	0.135
IIA	4.6	2.1–10.3	<0.001
IIB	4.0	3.1–5.1	<0.001
Tumor necrosis	2.0	1.5–2.8	<0.001
Tumor recurrence	2.3	1.6–3.3	<0.001
Brain metastasis	7.6	4.0–14.2	<0.001
Adrenal metastasis	4.1	3.0–5.7	<0.001
Skin metastasis	8.3	2.6–26.4	<0.001

∗Stratified by age.