Quinone oxidoreductase 1 is overexpressed in gastric cancer and associated with outcome of adjuvant chemotherapy and survival

Table 1 Clinical characteristic of the gastric cancer patients

Clinical parameter	Number of cases (n)	(%)
Age group	Range (26-84, mean = 58.9)
< 60 yr	83	47.43
≥ 60 yr	92	52.57
Sex
Male	124	70.86
Female	51	29.14
Tumor size (cm)
< 5	63	36.00
≥ 5	99	56.57
Unknown	13	7.43
Tumor location
Fundus	40	22.86
Body	44	25.14
Antral	82	46.68
Whole	4	2.29
Unknown	5	2.85
TNM stage
I II	69	39.43
III IV	102	58.29
Unknown	4	2.28
Tumor depth
T1/T2	33	18.86
T3/T4	139	79.43
Unknown	3	1.71
Lymph node metastasis
Yes	43	24.57
No	123	70.29
Unknown	9	5.14
Vascular invasion
Yes	19	10.86
No	156	89.14
Histological Differentiation
Poor	20	11.43
Moderate	44	25.14
Well	111	63.43
Surgical type
Complete resection	67	38.29
Distal resection	83	47.43
Proximal resection	14	8.00
Partial resection	1	0.57
Unknown	10	5.71
Chemotherapy
Adjuvant chemotherapy	84	48.00
Without chemotherapy	80	45.71
Unknown	11	6.29