[Making progress in the use of health policies and practices informed by evidence: the Piripiri-Piauí experience].

Evidence-informed decision making (EIDM) can optimize health services and systems. EIDM involves defining problems, identifying measures to tackle them, assessing the quality of global and local evidence and translating it for the main stakeholders in line with social values and laws. Brazil encourages the use of EIDM in health policy in Piripiri, a municipality of 61,840 inhabitants in the country's poorest region, and launched Brazil's first Evidence Use in Health Care (NEv) center in 2010. The development and preliminary results of the NEv center are reported and its vision, composition, mandate, and activities are presented. The NEv center experience has the support of the Evidence-Informed Policy Network, the Latin American and Caribbean Center of Information on Health Sciences and federal and municipal governments. The decentralization of financing and the provision of healthcare services, the expansion of EIDM in management, and the local political context illustrate the progress of the experiment. Its activities include the production and dissemination of deliberative briefs and dialogues with opinion shapers, workers and health service users. Monitoring and evaluation are underway and the results will help to broaden the scale of activities in Brazil and abroad.