Title Type
CDAI Calculator

Calculator for Crohn's Disease Activity Index, from IBD Support Australia

Harvey-Bradshaw Calculator
IBDQ (Inflammatory Bowel Disease Questionnaire)

The McMaster IBDQ is the most widely used HRQL instrument for IBD patients.

MaRIA (Magnetic Resonance Index of Activity) score

Link to original paper by Rimola J et al.: Magnetic Resonance Imaging for Evaluation of Crohn’s Disease: Validation of Parameters of Severity and Quantitative Index of Activity

Mayo Score Calculator

Mayo Score calculator, available on

PCDAI Calculator

Pediatric Crohn's Disease Activity Index Calculator

Rating Form of IBD Patient Concerns (RFIPC)

Original study by Drossman DA et al. outlining the RFIPC

Risk of radiation exposure

Online calculator that outlines radiation risk from various medical interventions and places these in context of other risk factors.

Rutgeert's Score
SF-36 QoL Survey

Original SF-36 survey, in public domain provided by the RAND Corporation. Commercial, updated version is also available.

Simple endoscopic score (SES-CD)

Simple Endoscopic Score for Crohn's Disease (SES-CD) is a simple, reproducible, and easy-to-use endoscopic scoring system for Crohn's disease.

Terms and conditions

By using this site you acknowledge that the content of this website is based on a review process of the ECCO Consensus Guidelines and primarily aims at facilitating their visualization.

Any treatment decisions are a matter for individual clinicians and may not be based primarily on the e-Guide content.

The European Crohn's and Colitis Organisation and/or any of its staff members and/or any website contributor may not be held liable for any information published in good faith on this website.

You agree that the use of this website is at your own risk and hereby waive any and all potential claims against European Crohn's and Colitis Organisation, and/or any of its staff members and/or any of the website contributors.