Rapid Communication
Copyright ©2008 The WJG Press and Baishideng.
World J Gastroenterol. Jul 14, 2008; 14(26): 4222-4226
Published online Jul 14, 2008. doi: 10.3748/wjg.14.4222
Table 2 Univariate analysis of potential risk characteristicsfor lymph node metastasis
FactorLymph node metastasis n (%)P
Sex
Male (n = 60)7 (11.7)0.315
Female (n = 25)5 (20)
Age (yr)
< 60 (n = 53)9 (17.0)0.329
≥ 60 (n = 32)3 (9.4)
Family medical history
Positive (n = 6)1 (16.7)0.852
Negative (n = 79)11 (13.9)
Number of tumors
Single (n = 82)12 (14.6)0.475
Multitude (n = 3)0 (0)
Location
Upper (n = 5)1 (20.0)0.925
Middle (n = 14)2 (14.3)
Lower (n = 66)9 (13.6)
Tumor size in diameter
≤ 2 cm (n = 45)2 (5.1)0.007
> 2 cm (n = 40)10 ( 21.7)
Macroscopic type
I (n = 2)1 (50.0)0.183
II (n = 70)8 (11.4)
III (n = 13)3 (23.1)
Depth of invasion
Mucosa (n = 44)2 (4.5)0.009
Submucosa (n = 41)10 (24.4)
Lymphatic vessel involvement
Positive (n = 4)3 (75.0)< 0.001
Negative (n = 81)9 (11.1)