Variable Survival Odd Ratio (95% Confidence interval) P-value
  Alive(n= 26) Dead (n=14)    
Age
<60 10 4 1.13(0.70-1.81) 0.73
≥ 60 16 10
Sex
Female 7 3 0.92(0.52-1.62) 0.76
Male 19 11
Pathology
Squamous 12 6 1.08(0.69-1.72) 0.76
Adenocarcinoma 14 8
Stage
I+II 7 0 1.82(1.33-2.51) 0.03
III+IV 19 14
Performance status
<2 20 5 1.98(1.03-3.80) 0.01
≥2 6 9
Baseline CYFRA-21-1
( <5.3 vs.≥ 5.3) 14 5 1.71(0.69-4.15) 0.32
  12 9
CYFRA-21 after treatment
(<10.4 vs. ≥ 10.4) 19 0 3.0(1.64-5.49) 0.001
  7 14
Baseline CEA
(< 5.5 vs.≥ 5.5) 14 4 2.14(0.81-5.67) 0.18
  12 10
CEA after treatment
( <9.3 vs.≥ 9.3) 20 1 3.01(1.54-5.88) 0.001
  6 13
Table 6: Logistic univariate regression analysis of clinical characteristics and survival.