. Author manuscript; available in PMC: 2020 Dec 1.

Published in final edited form as: Aliment Pharmacol Ther. 2019 Oct 3;50(11-12):1189–1194. doi: 10.1111/apt.15505

Table 1.

Clinical characteristics of asymptomatic pouch patients undergoing surveillance pouchoscopy, total n=143 for all variables

Characteristics	n (%)
Sex
● Male	80 (55.9%)
● Female	63 (44.1%)
Age at colectomy, years^*	38 [28–53]
Disease duration, months^*	84 [30–162]
BMI at colectomy, kg/m² ^*	23.4 [20.1–26.7]
Preoperative diagnosis
● Ulcerative colitis	135 (94.4%)
● IBD-U	8 (6.6%)
Preoperative extent of disease
● Extensive colitis	117 (81.3%)
● Left sided colitis	27 (18.8%)
Extraintestinal manifestations
● PSC	6 (4.2%)
● Arthritis	10 (7.0%)
Tobacco use at colectomy	6 (4.2%)
Backwash ileitis	20 (14.0%)
Surgical indication^#
● Medically refractory disease	105 (73.4%)
● Dysplasia	38 (26.6%)

BMI: body mass index, IBD-U: IBD-unspecified, PSC: primary sclerosing cholangitis

median [interquartile range]