Brief Article
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Oct 7, 2011; 17(37): 4213-4217
Published online Oct 7, 2011. doi: 10.3748/wjg.v17.i37.4213
Table 1 Demographic characteristics of patients in each group
GroupABCD
Number38373736
Age(yr; mean ± SD)42.2 ± 13.944.3 ± 18.044.6 ± 16.441.8 ± 17.5
Female: Male (n)18:2019:1816:2118:18
Cause of endoscopy
Dyspepsia25282123
Reflux6544
Screening for cancer7054
Others0475