Cost-effectiveness analysis of a surveillance program to prevent hip dislocation in children with cerebral palsy

Abstract

Objective: In this study we conducted an economic evaluation of a surveillance programme to prevent hip dislocation in children with cerebral palsy. Method: We developed a model that compared costs and health outcomes of children with cerebral palsy with and without a surveillance programme. Information from a number of sources was combined into a decision analytical model, primarily based on data from a comparative study with a 20-year follow-up. Effectiveness was measured using Quality-Adjusted Life Years (QALYs). The analysis took the perspective of the Spanish National Health Service. We undertook extensive sensitivity analyses including a probabilistic sensitivity analysis. Results: The surveillance programme led to higher QALYs and higher health care costs, with an estimated incremental cost per QALY gained of 12,282€. The results were robust to model assumptions. The probability that the programme was cost-effective was estimated to be over 80% at the threshold of 25.000€/QALY recommended in Spain. Conclusion: This study indicates that surveillance programmes to prevent hip dislocation in children with cerebral palsy are likely to be cost-effective.