Retrospective Cohort Study
Copyright ©The Author(s) 2016.
World J Gastroenterol. Aug 21, 2016; 22(31): 7146-7156
Published online Aug 21, 2016. doi: 10.3748/wjg.v22.i31.7146
Table 2 Characterization of the healthy individuals and esophageal squamous cell carcinoma patients
Evaluated criteriaNumber of individuals (range or %)
Healthy individuals,n = 44ESCC patients,n = 28
Age (yr)56.50 (18-85)59.50 (46-79)
Sex
Men13 (29.5)18 (64.3)
Women31 (70.5)10 (35.7)
Smoking
Never27 (61.4)1 (3.6)
Ever17 (38.6)27 (96.4)
Alcohol consumption
Never20 (45.5)2 (7.1)
Ever24 (54.5)26 (92.9)
Death
NoNA8 (28.6)
YesNA20 (71.4)
Tumor localization
Upper thirdNA9 (32.1)
Middle thirdNA15 (53.6)
Lower thirdNA3 (10.7)
Histological grade, differentiation
PoorNA6 (21.4)
ModerateNA21 (75.0)
WellNA1 (3.6)
Tumor stage
1 + 2NA7 (25.0)
3 + 4NA15 (53.6)
Not determinedNA6 (21.4)