Table 6 Cox proportional hazards regression model analysis of disease-free survival
Variables (X) | Categories (different groups) | P value | OR value | 95% CI for OR | |
|---|---|---|---|---|---|
Lower | Upper | ||||
Gender (X1) | Male (X1-0) vs. female (X1-1) | 0.785 | - | - | - |
Age (X 2) | <60 (X2-0) vs. ≥60 (X2-1) | 0.492 | - | - | - |
Smoking (X3) | 0 (X3-0) vs. 0.1-40 (X3-1) vs. >40 (X3-2) | 1.062 | - | - | - |
Histology (X4) | LAC (X4-0) vs. LSCC (X4-1) vs. SCLC (X4-2) vs. LCLC (X4-3) | 0.908 | - | - | - |
Differentiation (X5) | Poor (X5-0) vs. moderate (X5-1) vs. well (X5-2) | 0.013 | 1.514 | 1.090 | 2.103 |
T stage (X6) | T1-2 (X6-0) vs. T3-4 (X6-1) | 0.769 | - | - | - |
Lymphatic invasion (X7) | Positive (X7-0) vs. negative (X7-1) | 0.018 | 0.697 | 0.516 | 0.941 |
TNM (X8) | I-II (X8-0) vs. III-IV (X8-1) | 0.001 | 0.532 | 0.370 | 0.765 |
Pleural invasion (X9) | Absent (X9-0) vs. Present (X9-1) | 0.154 | - | - | - |
Annexin A1 (X10) | Low (X10-0) vs. moderate (X10-1) vs. high (X10-2) | 0.000 | 4.723 | 2.703 | 8.253 |
Hsp90-beta (X11) | Low (X11-0) vs. moderate (X11-1) vs. high (X11-2) | 0.000 | 2.923 | 1.857 | 4.601 |
Imaging (X12) | Central (X12-0)vs. ambient (X12-1) | 1.600 | - | - | - |
Risk function: | H(t) = [h0(t)]e(0.415 X5 - 1.012 X7 - 0.631 X8 + 1.552 X10 + 1.073 X11) | ||||