Brief Article
Copyright ©2010 Baishideng.
World J Gastrointest Oncol. Aug 15, 2010; 2(8): 326-331
Published online Aug 15, 2010. doi: 10.4251/wjgo.v2.i8.326
Table 1 Frequency distributions of characteristics among colorectal cancer patients and controls n (%)
CharacteristicsPatients (n = 362)Controls (n = 362)P
Age (yr)
mean ± SD64.4 (6.2)63.8 (5.8)0.149
Age group (yr)0.932
≤ 6093 (25.7)95 (26.2)
> 60269 (74.3)267 (73.8)
Gender0.707
Male209 (57.7)203 (56.0)
Female153 (42.3)159 (44.0)
Habits
Cigarette smokers84 (23.2)91 (25.1)0.602
Alcohol drinkers51 (14.1)44 (12.2)0.509
Primary tumor
Colon239 (66.0)
Rectum123 (34.0)
Histological differentiation
Well/moderate319 (88.1)
Poorly/unknown43 (11.9)
Extent of invasion
T1-2134 (37.0)
T3-4228 (63.0)
Lymph node involvement
N091 (25.1)
N1-3271 (74.9)