Jaquelline Monte Stevanato, Maria Aparecida Munhoz Gaíva, Ageo Mário Cândido da Silva, Jaquelline Monte Stevanato, Maria Aparecida Munhoz Gaíva, Ageo Mário Cândido da Silva

to analyze the coverage trends of the Brazilian Information System on Live Births (Sinasc) in the state of Mato Grosso and its Health Regions, in the period from 2000 to 2012. this is a time series study, coverage was calculated by the ratio between the number of live births registered in the system and the number estimated by the Brazilian Institute of Geography and Statistics (IBGE); the trends were analyzed using polynomial regression models. Sinasc coverage in Mato Grosso in the studied period presented increasing trend, with a median of 94.9%; Araguaia Xingu region presented coverage lower than 90% in the period; most of the regions presented coverage increasing trends, except for Baixada Cuiabana, Centro Norte and Vale do Peixoto. Sinasc coverage in Mato Grosso was satisfactory and has been increasing in most of Health Regions.