Prognostic value of modified Lauren classification in gastric cancer

Table 1 Basic characteristics according to anatomical location using the modified Lauren classification

Variable	Distal non-diffuse type	Proximal non-diffuse type	Diffuse type
Gender (%)
Male	416 (63.6)	324 (70.0)	848 (53.0)
Female	238 (36.4)	139 (30.0)	753 (47.0)
Age (%)
< 60 yr	200 (30.6)	167 (36.1)	850 (53.1)
≥ 60 yr	454 (69.4)	296 (63.9)	751 (46.9)
Tumor size (%)
< 4.0 cm	318 (48.6)	218 (47.1)	664 (41.5)
≥ 4.0 cm	310 (47.4)	221 (47.7)	771 (48.2)
Unknown	26 (4.0)	24 (5.2)	166 (10.4)
Retrieved lymph nodes (%)
Adequate (n ≥ 16)	326 (49.8)	261 (56.4)	831 (51.9)
Inadequate (n < 16)	328 (50.2)	202 (43.6)	770 (48.1)
AJCC 8th pT stage (%)
pT1	211 (32.3)	123 (26.6)	356 (22.2)
pT2	87 (13.3)	69 (14.9)	173 (10.8)
pT3	207 (31.7)	149 (32.2)	464 (29.0)
pT4a	101 (15.4)	89 (19.2)	480 (30.0)
pT4b	48 (7.3)	33 (7.1)	128 (8.0)
AJCC 8th pN stage (%)
pN0	302 (46.2)	197 (42.5)	532 (33.2)
pN1	117 (17.9)	79 (17.1)	260 (16.2)
pN2	115 (17.6)	90 (19.4)	302 (18.9)
pN3a	95 (14.5)	70 (15.1)	347 (21.7)
pN3b	25 (3.8)	27 (5.8)	160 (10.0)
Differentiation grade (%)
Well differentiation	66 (10.1)	26 (5.6)	3 (0.2)
Moderate differentiation	269 (41.1)	170 (36.7)	44 (2.7)
Poor differentiation	311 (47.6)	259 (55.9)	1484 (92.7)
Undifferentiation	8 (1.2)	8 (1.7)	70 (4.4)

AJCC: American Joint Committee on Cancer; pN stage: Pathological N stage; pT stage: Pathological T stage.