[Effective coverage of health interventions in Latin America and the Caribbean: metrics for the assessment of health systems performance].

OBJECTIVE To measure effective coverage for ll health interventions in Latin America including the children's, women's and adult health, as part of program evaluation. MATERIAL AND METHODS Interventions were selected; the definitions and calculation methods were harmonized according to the information available to ensure comparability between countries. RESULTS Chile has better indicators of crude and effective coverage followed by Mexico and Colombia.There are significant gaps between regions, counties or states. CONCLUSIONS The health metric on effective coverage is a sensitive indicator that links three important aspects: Coverage of health interventions, use of health services, and access to such services. Effective coverage is a good tool to evaluate health programs performance, and also provides data of where and to whom the system should address national efforts and resources to achieve the purposes and goals set.