Retrospective Cohort Study
Copyright ©The Author(s) 2016.
World J Gastroenterol. Jul 14, 2016; 22(26): 6049-6056
Published online Jul 14, 2016. doi: 10.3748/wjg.v22.i26.6049
Table 1 Baseline characteristics of patients
VariableAll patients (n = 843)
Age (yr)58 (52-67)
Gender
Male522 (61.9)
Female321 (38.1)
BMI25 (22-28)
ASA score2 (1-3)
Lesion size (mm)16 (12-23)
Number of adenomas2.5 (1-3)
Number of ACAs1.5 (1-2)
Morphology1 pedunculated (Paris 1p)473 (40.9)
Sessile (Paris 1s)458 (39.6)
Nonpolypoid (Paris 0-IIa, 0-IIb, 0-IIc)224 (19.5)
Location1
Right side of the colon431 (37.3)
Left side of the colon724 (62.7)
Type of resection1937 (81.1)
En bloc piecemeal218 (18.9)
Histology1
Tubular436 (37.7)
Tubulo-villous632 (54.7)
Villous87 (7.6)
Hystologic grade of dysplasia1
Low grade878 (76.1)
High grade277 (23.9)