Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Nov 28, 2012; 18(44): 6489-6493
Published online Nov 28, 2012. doi: 10.3748/wjg.v18.i44.6489
Table 1 Univariate analysis of potential risk characteristics for lymph node metastasis n (%)
FactorLymph node metastasisP value
Sex
Male (n = 60)8 (13.3)0.781
Female (n = 25)4 (16.0)
Age (yr)
< 60 (n = 76)10 (13.2)0.534
≥ 60 (n = 9)2 (22.2)
Family medical history
Positive (n = 3)0 (0)0.509
Negative (n = 82)12 (14.6)
Number of tumors
Single (n = 83)12 (14.5)0.591
Multitude (n = 2)0 (0)
Location
Upper (n = 20)4 (20.0)0.566
Middle (n = 5)0 (0)
Lower (n = 60)8 (13.3)
Tumor size in diameter
≤ 2 cm (n = 54)3 (5.6)0.011
> 2 cm (n = 31)9 (29.0)
Macroscopic type
I (n = 2)00.768
II (n = 64)10 (15.6)
III (n = 19)2 (10.5)
Depth of invasion
Mucosa (n = 56)3 (5.4)0.007
Submucosa (n = 29)9 (31.0)
Lymphatic vessel involvement
Positive (n = 14)8 (57.1)< 0.001
Negative (n = 71)4 (5.6)