[Universal health coverage assessment based on national socioeconomic characterization surveys].

Background: The Chilean health reform aimed to expand universal health coverage (UHC) with equity.

Aim: To analyze progress in health system affiliation, attended health needs (health visit for a recent problem) and direct payment for services, between 2000 and 2011.

Material And Methods: We evaluated these outcomes for adults aged 20 years or older, analyzing databases of five National Socioeconomic Characterization Surveys.