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Development, validation, and responsiveness of a novel disease activity index for intestinal Behçet's disease

 Jae Hee Cheon  ;  Dong Soo Han  ;  Jeong Youp Park  ;  Byong Duk Ye  ;  Sung Ae Jung  ;  Young Sook Park  ;  You Sun Kim  ;  Joo Sung Kim  ;  Chung Mo Nam  ;  Youn Nam Kim  ;  Suk-Kyun Yang  ;  Won Ho Kim 
 INFLAMMATORY BOWEL DISEASES, Vol.17(2) : 605-613, 2011 
Journal Title
Issue Date
Adolescent ; Adult ; Aged ; Behcet Syndrome/physiopathology* ; Cohort Studies ; Female ; Follow-Up Studies ; Humans ; Intestinal Diseases/physiopathology* ; Longitudinal Studies ; Male ; Middle Aged ; Predictive Value of Tests ; Prospective Studies ; Severity of Illness Index ; Young Adult
intestinal Behc¸et’s disease, disease activity index, ; Crohn’s disease activity index, inflammatory bowel disease
BACKGROUND: There is no disease activity index (DAI) currently available that can objectively assess the disease status of intestinal Behçet's disease (BD). The aim of this study was to develop a novel specific DAI for intestinal BD through a prospective study. METHODS: Items included in the index were produced and graded by experts in intestinal BD. Two separate cohorts of patients (weighting and validation cohorts) with intestinal BD were prospectively enrolled, and their clinical and laboratory data were collected. Through weighting items by multiple regression modeling, the DAI for intestinal BD (DAIBD) was derived using the weighting cohort and validated using the validation cohort. The index's responsiveness was evaluated using a longitudinal cohort derived from the weighting cohort at a follow-up visit 2-3 months later. RESULTS: A total of 110 patients with intestinal BD were enrolled in the weighting cohort. Eight of the 17 items selected by the experts accounted for 86.8% of the physician's global assessment (PGA) variance. The DAIBD calculated with gradations of weighted items correlated more strongly with PGA (r=0.850) than did the Crohn's disease activity index (CDAI) (r=0.649) in 50 patients of the validation cohort. Furthermore, quiescent, mild, moderate, and severe could be discriminated using the best cutoff scores. The DAIBD showed much higher responsiveness than did the CDAI (r=0.812 vs. 0.645, respectively) in 109 patients in the longitudinal cohort. CONCLUSIONS: This novel DAIBD is an easy, valid, and responsive index to assess disease activity and can be useful to physicians who treat intestinal BD.
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1. College of Medicine (의과대학) > Dept. of Biomedical Systems Informatics (의생명시스템정보학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Won Ho(김원호) ORCID logo https://orcid.org/0000-0002-5682-9972
Kim, Youn Nam(김윤남)
Nam, Jung Mo(남정모) ORCID logo https://orcid.org/0000-0003-0985-0928
Park, Jeong Youp(박정엽) ORCID logo https://orcid.org/0000-0003-0110-8606
Cheon, Jae Hee(천재희) ORCID logo https://orcid.org/0000-0002-2282-8904
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