World Journal of Surgical Oncology

Table 3 Comparison of median survival and 5-year survival rates between subgroups of patients according to the period of treatment

From: Time-related improvement of survival in resectable gastric cancer: the role of Japanese-style gastrectomy with D2 lymphadenectomy and adjuvant chemotherapy

	Year of diagnostic
	Before 1990 (n = 207)			1990 and after (n = 219)
	n	x OS (m)	5-y OS (%)	n	x OS (m)	5-y OS (%)	ρ
Gender
Male	135	26	32	141	120+	58	< .0001
Female	72	113	53	78	120+	69	= .0434
Age, years
< 61	112	34	42	69	120+	57	= .0504
> 61	95	31	37	149	120+	64	< .0001
Tumor location
Cardia	10	36	26	22	120+	90	= .0021
Body	59	33	38	69	120+	62	= .0022
Antrum	89	38	44	98	120+	59	= .0253
Lymph node involvement
N0	85	216+	62	96	120+	73	= .0328
N+	122	22	23	123	120+	52	< .0001
Stage
I	33	204+	81	59	120+	81	= .6689
II	65	78	51	51	120+	70	= .0132
IIIA	64	23	23	54	120+	57	= .0008
IIIB	44	19	15	39	23	30	= .2315
Lymphadenectomy
D1	184	31	39	65	26	26	= .6718
D2	22	52	42	123	120	66	= .0076
Adjuvant Chemotherapy
No	98	22	30	94	60	45	= .006
Yes	109	58	48	126	120+	73	= .0003
Chemotherapy
MMC	89	48	47	44	120+	58	= .2346
MMC-TG	20	80	54	82	120+	87	= .0113

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ISSN: 1477-7819

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