Table 2: Univariate analysis for 3-years overall and progression free survival in relation to different prognostic factors.

Variables 3-Y OS 3-Y PFS
AGE < 65 69.3% 46.5%
≥ 65 48.3% 28.3%
p = 0.023 p = 0.05
SEX M 57.8% 41.0%
F 67.0% 38.0%
p = 0.79 p = 0.88
PS < 2 74.0% 51.5%
≥ 2 40.7% 20.5%
p = 0.004 p = 0.006
Tobacco Yes 70.3% 44.0%
NO 63.3% 36.7%
N/A 51.3% 42.6%
p = 0.56 p = 0.85
LN status Negative 85.6% 62.8%
Positive 37.2% 20.1%
p = 0.001 p = 0.001
T-stage T1-T2 77.2% 51.3%
T3-T4 43.0% 27.6%
p = 0.017 p = 0.056
Stage Group Early (I/II) 88.1% 61.4%
Advanced (III/IV) 43.8% 27.0%
p = 0.009 p = 0.013
Histological grade G1 79.4% 68.0%
G2 59.0% 30.9%
G3 0.0% 0.0%
Unknown 50.0% 50.0%
p = 0.026 p = 0.07
NLR median High NLR 54.7% 29.5%
Low NLR 69.5% 51.0%
p = 0.037 p = 0.028

OS: Overall Survival; PFS: Progression Free Survival; NLR: Neutrophils-to-Lymphocytes Ratio; PS: Performance Status; LN: Lymph Nodes; N/A: Not Available.