Table 1.

Clinical characteristics of patients with esophageal cancer

	Group	n			Percentage (%)	P
		Radiosensitive	Radioresistant	Total
Sex	Male	25	20	45	69.23	0.432
	Femal	9	11	20	30.77
Age	≤ 60	5	7	12	18.46	0.414
	>60	29	24	53	81.54
Lesion location	Upper	16	19	35	53.85	0.302
	Middle	15	8	23	35.38
	Lower	3	4	7	10.77
Lesion length	≥ 5 cm	24	20	44	67.69	0.601
	<5 cm	10	11	21	32.31
Lymph node metastasis	Yes	20	15	35	53.85	0.399
	No	14	16	30	46.15
Stage	I	0	0	0	0	0.429
	II	10	12	22	33.85
	III	24	19	43	66.15
	IV	0	0	0	0