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. 2019 Jan 31;7(2):121–126. doi: 10.1093/gastro/goz001

Table 4.

Univariate relationships between change in mPDAI scores and several categorical variables of interest

Factor No. Post – pre clinical mPDAI
Post – pre endoscopic mPDAI
Post – pre total mPDAI
Median P-value Median P-value Median P-value
Gender     0.76   0.097   0.21
 Male 10 0.00 [–1.00, 0.00]   –2.0 [–3.0, –2.0]   –2.0 [–3.0, –2.0]  
 Female 9 0.00 [–1.00, 0.00]   –1.00 [–2.0, 2.0]   –2.0 [–2.0, 2.0]  
Smoking     0.73   0.39   0.39
 Past 5 0.00 [–1.00, 0.00]   –2.0 [–2.0, –2.0]   –2.0 [–3.0, –2.0]  
 Never 14 0.00 [–1.00, 0.00]   –2.0 [–2.0, 2.0]   –2.0 [–3.0, 1.00]  
Family history of IBD   0.75   0.52   0.53
 No 13 0.00 [–1.00, 0.00]   –2.0 [–2.0, 0.00]   –2.0 [–3.0, 0.00]  
 Yes 6 0.00 [–1.00, 0.00]   –2.0 [–3.0, –1.00]   –2.0 [–3.0, –2.0]  
Prior surgical history     0.50   0.23   0.23
 No 14 0.00 [–1.00, 0.00]   –2.0 [–3.0, 0.00]   –2.0 [–3.0, 0.00]  
 Yes 5 0.00 [0.00, 0.00]   –1.00 [–2.0, –1.00]   –2.0 [–2.0, –1.00]  
Extra-intestinal manifestation     0.071   0.47   0.36
 No 10 –0.50 [–1.00, 0.00]   –2.0 [–2.0, –1.00]   –2.0 [–3.0, –2.0]  
 Yes 9 0.00 [0.00, 0.00]   –2.0 [–2.0, 2.0]   –2.0 [–3.0, 2.0]  
NSAIDs     0.76   0.39   0.64
 None 9 0.00 [–1.00, 0.00]   –2.0 [–4.0, –1.00]   –2.0 [–4.0, –1.00]  
 Past or present 10 0.00 [–1.00, 0.00]   –2.0 [–2.0, 0.00]   –2.0 [–3.0, 0.00]  
Clostridium difficile of pouch     0.73   0.56   0.57
 Never 14 0.00 [–1.00, 0.00]   –2.0 [–2.0, 0.00]   –2.0 [–3.0, 0.00]  
 Past 5 0.00 [–1.00, 0.00]   –2.0 [–2.0, –2.0]   –2.0 [–3.0, –2.0]  
Biologics prior to colectomy   0.37   0.055   0.054
 No 10 0.00 [–1.00, 0.00]   –2.0 [–3.0, –2.0]   –2.0 [–3.0, –2.0]  
 Yes 9 0.00 [0.00, 0.00]   0.00 [–2.0, 2.0]   0.00 [–2.0, 2.0]  
Pre-colectomy infliximab     0.33   0.12   0.079
 No 13 0.00 [–1.00, 0.00]   –2.0 [–2.0, –2.0]   –2.0 [–3.0, –2.0]  
 Yes 6 0.00 [0.00, 0.00]   1.00 [–2.0, 2.0]   0.50 [–2.0, 2.0]  
Pre-colectomy adalimunab     0.99   0.020   0.038
 No 13 0.00 [–1.00, 0.00]   –2.0 [–3.0, –2.0]   –2.0 [–3.0, –2.0]  
 Yes 6 0.00 [–1.00, 0.00]   1.00 [–2.0, 4.0]   0.50 [–2.0, 4.0]  
Mesalamine (>3 months) 0.76   0.25   0.43
 No 7 0.00 [–1.00, 0.00]   –1.00 [–2.0, 4.0]   –2.0 [–3.0, 4.0]  
 Yes 12 0.00 [–1.00, 0.00]   –2.0 [–2.5, –1.00]   –2.0 [–3.0, –1.00]  
Topical steroids (>3 months)   0.76   0.39   0.64
 No 9 0.00 [–1.00, 0.00]   –1.00 [–2.0, 0.00]   –2.0 [–3.0, 0.00]  
 Yes 10 0.00 [–1.00, 0.00]   –2.0 [–2.0, –2.0]   –2.0 [–3.0, –2.0]  
Pre-vedolizumab biologics     0.23   0.86   0.83
 No 9 0.00 [–1.00, 0.00]   –2.0 [–2.0, 0.00]   –2.0 [–3.0, 0.00]  
 Yes 10 0.00 [0.00, 0.00]   –2.0 [–2.0, –1.00]   –2.0 [–3.0, –1.00]  

Data presented as Median [P25, P75]. P-values correspond to Kruskal–Wallis test.

mPDAI, modified pouch disease activity index; IBD, inflammatory bowel disease; NSAIDs, non-steroidal anti-inflammatory drugs.