Table 8. Baseline characteristics of patients in testing set.

Characteristic	Responders (n=7)	Nonresponders (n=5)	P value
Age
Median (range)	56(50-61)	66(56-73)	0.198*
Sex
Male/ Female	4/3	3/2	>0.999**
TNM staging
T1/T2/T3/T4	0/3/3/1	0/3/1/1	0.773**
N0/N1/N2	0/4/3	0/3/2	>0.999**
M0/M1	7/0	4/1	0.417**
AJCC stage
I/II/III/IV	0/3/4/0	0/1/3/1	0.735**

^*Independent-samples t-test.

^**chi-square test.