Table 1.

Comparison of clinical data

Factor	Control group (n=44)	Research group (n=48)	χ2 value	P value
Age			0.174	0.676
≤60 years old	21	25
>60 years old	23	23
Gender			0.075	0.783
Male	26	27
Female	18	21
BMI			0.428	0.512
≤21 kg/m2	19	24
>21 kg/m2	25	24
Course of disease			0.001	0.970
≤7 months	20	22
>7 months	24	26
Education			0.075	0.783
Below college	26	27
College and above	18	21
TNM stage			0.271	0.603
Stage IIIa	16	20
Stage IIIb	28	28

Note: χ²: chi-square test. BMI: body mass index.