Related Experiment Video
Updated: Sep 12, 2025
Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
Published on: October 16, 2013
Predictive Validity of the TIGER Score for Daily-Life Disease Burden, Complications, and Medication Use in
Eran Zittan1,2,3, Matthew Levy1,2, Shiraz Vered4
1The Abraham and Sonia Rochlin IBD Unit, Department of Gastroenterology and Liver Diseases, Emek Medical Center, Afula, Israel.
Introduction:
The Toronto Inflammatory Bowel Disease (IBD) Global Endoscopic Reporting (TIGER) score was developed to provide 1 endoscopic scoring index for patients with both Crohn's disease (CD) and ulcerative colitis (UC). The goal of this study was to assess the predictive validity the TIGER score for daily-life disease burden (IBD Disk) and disease complications.
Methods:
A prospective 12-month study was conducted in 1 tertiary IBD center. Baseline colonoscopy was performed. Moderate-to-severe mucosal involvement was defined as a TIGER score ≥100, Simple Endoscopic Score for CD >6, Mayo Endoscopic Score >1, and was used as a predictor for clinical outcomes. At each visit, IBD Disk questionnaires, disease complications, hospitalizations, surgeries, and medications were documented.
Results:
A total of 107 adults, 52 with CD and 55 with UC, were included. Patients with a baseline TIGER score ≥100 had a significantly higher prevalence of an IBD Disk score ≥40 after the 12-month follow-up period despite receiving advanced therapy (33.9% vs 7.8%, P < 0.001). There were significantly more patients with a baseline TIGER score ≥100 who experienced at least 1 hospitalization (39.3% vs 2.0%, P < 0.001), underwent surgery (14.3% vs 0.0%, P < 0.005), had IBD-related complications (41.1% vs 9.8%, P < 0.001), and required steroids (67.9% vs 5.9%, P < 0.001) or advanced therapy (85.7% vs 7.8%, P < 0.001). Similar significant results were obtained with Simple Endoscopic Score for CD and Mayo Endoscopic Score as predictors of outcomes over the 12 months.
Discussion:
The TIGER score is a simple endoscopic score for patients with CD and UC with an adequate predictive validity for worse clinical outcomes while having noninferiority to the current best-referenced endoscopic scores.
More Related Videos
Related Concept Videos
01:30Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
01:30Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
01:27Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
01:29Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...
01:24Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF
01:17Assessment of the Gastrointestinal System I: Subjective Data
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems...