Table 5: Correlation between clinical features and overall survival in stage VI CBNPC patients.
Clinical feature 
Overall survival (days) 
Oneyear survival rate 
P 

Age 
Age < 60 y 
355 
46% 
0.14 
Age ≥ 60 y 
292 
41.8% 

PS 
PS = 0 
424 
63.4% 
0.002 
PS = 1 
371 
50% 


PS = 2 
252 
27.9% 


Chest pain 
Overall survival (days) 

p 

No (n = 51) 
322 

0.072 

Yes (n = 20) 
313 



Dyspnea 
Overall survival (days) 

p 

No (n = 34) 
342 

0.195 

Yes (n = 37) 
293 



Hemoptysis 
Overall survival (days) 

P 

No (n = 53) 
305 

0.27 

Yes (n = 18) 
352 



Weight loss 
Overall survival (days) 

P 

No (n = 54) 
347 

0.044 

Yes (n = 17) 
228 



Stage of the disease 
Overall survival (days) 
Oneyear survival rate 
P 

M1a 
364 
47% 
0.56 

M1b 
354 
44% 


M1c 
300 
34% 


Response to chemotherapy 
Overall survival (days) 
Oneyear survival rate 
P 

Partial regression (n= 7) 
551 
85% 
0.0001 

Stability (n= 19) 
430 
61% 


Progression (n= 42) 
265 
28% 
