Table S2. Final multivariate model after backwards selection using BIC criteria. Variables considered: clinical stage, smoking status, tumor grade, mediastinal staging, pathologic node status, hemoglobin levels, DLCO, history of hypertension, use of adjuvant chemotherapy, SUV_max, SUV_peak, SUV_mean, Homogeneity, Entropy-GLCM.

Metric	DFS (Nevents=34)			OS (Nevents=26)
	HR (95% CI)	P value		HR (95% CI)	P value
Hemoglobin	0.76 (0.61–0.94)	0.01
DLCO	0.95 (0.93–0.98)	0.005		0.96 (0.94–0.99)	0.005
Hypertension	2.83 (1.29–6.22)	0.01		2.97 (1.17–7.52)	0.02
Tumor grade (mod/poor)	8.9 (1.9–41)	0.005
Entropy-GLCM	0.65 (0.49–0.87)	0.004		0.60 (0.45–0.81)	0.0007
Adjuvant chemotherapy	1.19 (0.87–1.64)	0.28		4.79 (1.9–12)	0.09

DLCO, diffusing capacity of the lungs for carbon monoxide; GLCM, grey-level co-occurrence matrix.