Table 5.

Univariate analysis

Parameter	LC p	LRC p	DC p	OS p
Sex
Male vs. female	0.70	0.44	0.19	0.70
Age (years)
>75 vs. ≤75	0.23	0.19	0.19	0.29
ECOG
≥2 vs. <2	0.08	0.004a	0.13	0.03a
Tobacco (pack-years)
>40 vs. ≤40	0.41	0.06	0.96	0.31
Tumor size (cm)
>2.5 vs. ≤2.5 cm	0.23	0.04a	0.32	0.01a
PET SUVmax
>6 vs. ≤6	0.88	0.89	0.26	0.86
Histology
Squamous vs. others	0.003a	0.30	0.76	0.54
Tumor location
Lower vs. upper lobe	0.45	0.30	0.26	0.50
PTV (cc)
>50 vs. ≤50	0.72	0.95	0.46	0.10

LC local control, LRC locoregional control, DC distant control, OS overall survival

^aStatistically significant results