Table 1: Characteristics of patients with ulcerative colitis ( ) and Crohn’s disease ( ).

CharacteristicsUCCD value

Sociodemographic characteristics
 Age, median (range)41 (20–79)38 (18–75)0.019
 Female gender ( , %)82 (43)130 (55)0.018
 Education > 12 years ( , %)92 (49)108 (46)0.558
 Work status = working/student ( , %)134 (71)148 (62)0.064
 Marital status = married/cohabitating ( , %)149 (78)160 (67)0.012
 Current smoking, yes ( , %)15 (8)65 (27)<0.001
Disease-related characteristics
 Disease duration in years, median (range)6 (0.2–45)11 (0.1–44)<0.001
 HBAI median (range) 5 (0–30)
 SCCAI median (range)4 (0–15)
 Previous surgery for IBD ( , %)13 (7)130 (55)<0.001
 Comorbidities, yes ( , %) 84 (45)88 (37)0.137
 Adverse drug reaction, yes ( , %)107 (57)142 (60)0.487

Abbreviations: UC: ulcerative colitis; CD: Crohn’s disease; HBAI: Harvey-Bradshaw activity index; SCCAI: simple clinical colitis activity index.
Continuous variables were assessed by the Mann-Whitney test. Chi-squared test ( ) was used to compare proportions.