Table 2.

Prognostic factors for death.

Variables	Hazard Ratio	95% Confidence Interval	p-Value
Age	2.3	0.78–3.4	0.32
Sex	3.4	0.34–2.9	0.23
Smoking status	4.3	0.78–3.4	0.45
SUV	1.4	0.59–4.7	0.56
Tumor location (central)	2.8	0.67–2.9	0.21
Tumor size	4.3	0.39–4.1	0.45
Lymph node involvement	3.4	2.3–5.6	0.001
Pure GGO	3.3	2.9–4.5	0.01
Non-lepidic adenocarcinoma	2.9	1.8–3.4	0.004
Lymphatic invasion	3.6	2.6–4.8	0.001
Vascular invasion	4.9	1.1–3.1	0.003