Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Feb 28, 2012; 18(8): 794-799
Published online Feb 28, 2012. doi: 10.3748/wjg.v18.i8.794
Table 4 Subgroup analysis of the patients with atypia vs all others n (%)
Atypical/indeterminateNegative for malignancyP value
Patients1040
Median age (yr)69.5 (SD = 11.3)74.5 (SD = 12.1)0.262
Sex, male/female3/720/200.251
Previous ES8 (80)17 (42)0.0341
Acute cholangitis5 (50)16 (40)0.561
Previous biliary operation6 (60)19 (47)0.481
Stone extraction5 (50)22 (55)0.771
Dilated bile ducts without lithiasis on ERCP4 (40)18 (45)0.781
p53 immunocytology
Positive20
Negative840