Non refractory pouchitis Refractory pouchitis
Frequency after IPAA 23% 17%
Smoking 37.5% 0% (p=0.04)
Extraintestinal manifestation 12.5% 83.3% (p=0.007)
Time elapsed between IPAA and the occurrence of pouchitis (years) 3.28 (0.8-6.8) 1.69 (0.02-3.9)
(p=0.1)
Table 2: Predictors of the development of refractory pouchitis.