Cost-Effectiveness of Colorectal Cancer Screening in Selected Argentine Provinces

Abstract

INTRODUCTION: Colorectal cancer (CRC) is one of the main causes of mortality in adults. In Argentina it is the second among tumors, and there are differences between province mortality rates. CRC screening is underutilized in Argentina, where there is an important fragmentation of the health care system. OBJECTIVES: To assess the cost-effectiveness (CE) of different screening strategies based on annual immunochemical fecal occult blood test (IFOBT) for different health subsectors in the country. METHODS: A Markov model was developed, which allowed to compare three different strategies: screening population aged 50 to 74 years, screening population aged 50 to 64 years, and no screening. RESULTS: Differences in costs and clinical variability were found. Screening the population aged 50 to 74 years showed a slightly higher incremental CE ratio than screening the population aged 50 to 64, with values lower than per capita gross regional product. This result was robust in the sensitivity analysis. CONCLUSIONS: The compared results from seven regional health subsectors in Argentina, with their differences in epidemiology, organization, installed capacity and resources, as well as clinical variability and differences in costs, are robust in showing that CRC screening remains cost-effective under different scenarios. In order to analyze the CE in Argentina, it is necessary to take into account the local context of different health subsectors.