travis_uc_criteria: Travis Criteria (Oxford Criteria) for Ulcerative Colitis

In cliot: Clinical Indices and Outcomes Tools

Travis Criteria (Oxford Criteria) for Ulcerative Colitis

Description

Calculates the Travis (Oxford) Criteria to predict the failure of intravenous corticosteroid therapy in patients with severe ulcerative colitis. The assessment is performed on Day 3 of treatment. Patients meeting the criteria have a significantly higher risk (approximately 85%) of requiring colectomy.

Usage

travis_uc_criteria(stool_frequency_day3, crp_day3)

Arguments

stool_frequency_day3	Numeric. The number of stools passed on Day 3 of IV steroid treatment.
crp_day3	Numeric. The C-reactive protein level (mg/L) on Day 3 of IV steroid treatment.

Details

The criteria for predicting a high risk of colectomy are:

• Stool frequency > 8 times/day OR

• Stool frequency > 3 times/day AND CRP > 45 mg/L

Value

A list containing:

Result	Interpretation of the risk (High vs. Lower).
Predicted_Colectomy_Rate	Estimated probability of requiring colectomy.

References

Travis SP, Farrant JM, Ricketts C, et al. Predicting outcome in severe ulcerative colitis. Gut. 1996;38(6):905-910. doi:10.1136/gut.38.6.905

Examples

# Example 1: High Risk (Frequency > 8)
# 9 stools, CRP 10
travis_uc_criteria(9, 10)

# Example 2: High Risk (Frequency > 3 and CRP > 45)
# 4 stools, CRP 50
travis_uc_criteria(4, 50)

# Example 3: Lower Risk
# 3 stools, CRP 60 (Frequency not > 3)
travis_uc_criteria(3, 60)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.