Table 4. Kruskal-Wallis analysis of associations between the demographic and clinical data of patients and genotypes of XPG.

Variables	rs2094258		rs2296147		rs751402		rs873601
	Pa	Pb	Pa	Pb	P1	P2	P1	P2
Sex	0.693	0.399	0.721	0.231	0.799	0.313	0.172	0.122
Age	0.107	0.026	0.666	0.544	0.121	0.054	0.063	0.106
Smoking status	0.509	0.537	0.576	0.539	0.410	0.898	0.929	0.800
Drinking status	0.299	0.510	0.170	0.271	0.282	0.713	0.671	0.789
BMI	0.682	0.764	0.612	0.812	0.523	0.615	0.830	0.919
Therapeutic response	0.538	0.865	0.230	0.181	0.232	0.550	0.824	0.963
Tumor site	0.569	0.241	0.708	0.408	0.751	0.818	0.796	0.447
Dukes stage	0.346	0.309	0.957	0.834	0.699	0.442	0.637	0.590

BMI, body mass index.

^aP values were calculated for 10 years OS.

^bP values were calculated for 10 years PFS.