Objectives: Assess the efficiency of biologic treatment for moderate to severe ulcerative colitis (UC) which are indicated and financed for this pathology by Spain.
Methods: A Markov model was constructed to simulate the progression in a cohort of patients with moderate to severe UC. The perspective chosen was National Health Service with an over 10 years of time horizon, with a discount rate of 3%, and established threshold of €30,000/quality-adjusted life-year (QALY).