%0 Journal Article %T The capitation payment unit: 17 years in the General Social Security System in Health %A Diego A. Restrepo %A Luis E. L¨®pez S %J Revista Facultad Nacional de Salud P¨²blica %D 2013 %I Universidad de Antioquia %X Objective: to analyze the evolution of the Capitation Payment (UPC for its Spanish name ¡°unidad de pago por capitaci¨®n¡±) as well as the methodologies and variables for defining it that have existed in the Colombian Social Security System in Health since its implementation between 1995 and 2011. Methodology: An observational, longitudinal descriptive study. The reference population was made up of all the papers reviewed, including books, journal articles, databases, and official presentations containing the key concepts. Results: It was found that the Capitation Payment (UPC) is valued as an essential element to maintain the financial balance of the health system. From 1995 to 2011 there were a number of methodologies for defining this payment. They ranged from a definition based only on the financial balance and the availability of resources, to a technical study using statistical tools to annually adjust the value of the UPC. Conclusions: The origin of the UPC can be attributed to the system¡¯s orientation toward a market scheme and to the convergence of three basic theories. The variations in the value of the UPC have always resulted in a similar value year after year; this is why even if the methodology for defining it changed, the proportions will be the same when compared to previous years %K --Key words: capitation payment unit %K health systems financing %K health insurance %U http://aprendeenlinea.udea.edu.co/revistas/index.php/fnsp/article/view/11555/12748