Table 1.

Comparison of baseline information.

group	Cases (n)	Gender (M/F)	Stage
			StageⅡ	StageⅢ	StageⅣa	StageⅣb
Resistant group	36	28/9	17	11	6	2
Sensitive group	21	17/3	13	5	2	1
${\chi }^2$ value	0.679	0.426	−0.728
P value	>0.05	>0.05	>0.05