Table 4

Sensitivity analyses of developing any dementia among patients with IBD and controls*

TotalExclusion of observation periodExclusion of enrolment period
>3 years>5 yearsEnrolment year≥2000Enrolment year≥2005
Stratified Cox-regression model
IBD
 Presence2.54 (1.91 to 3.37)2.60 (1.91 to 3.55)2.30 (1.61 to 3.28)2.35 (1.72 to 3.20)2.26 (1.41 to 3.63)
 Absence1 (ref)1 (ref)1 (ref)1 (ref)1 (ref)
Stratified competing risk regression model
IBD
 Presence2.55 (1.92 to 3.39)3.14 (2.36 to 4.24)2.53 (1.80 to 3.57)2.35 (1.72 to 3.21)2.26 (1.41 to 3.63)
 Absence1 (ref)1 (ref)1 (ref)1 (ref)1 (ref)
  • Bold type indicates the statistical significance.

  • *Adjusted by age, Charlson Comorbidity Index score and all-cause clinical visits.

  • CI, confidence interval; HR, hazard ratio; IBD, inflammatory bowel disease.