Time trend of Family Health Strategy coverage in Brazil, its Regions and Federative Units, 2006-2016.

Objective: to analyze the Family Health Strategy (FHS) coverage time trend in Brazil, its Regions and Federative Units (FUs) in 2006-2016.
Methods: this was an ecological study with time series analysis of Ministry of Health Primary Care Department data; Prais-Winsten regression was used.
Results: FHS coverage in Brazil in 2006 and 2016 was 45.3% and 64.0%, respectively, with an increasing trend of coverage (annual variation = 8.4%: 95%CI 7.4;9.3); all five regions showed an increasing trend in coverage, as did the majority of FUs, with the exception of Roraima, Amapá, Piauí, Rio Grande do Norte and Paraíba, which showed stability; in 2016, 14 FUs had coverage of between 75 and 100%, and 11 had coverage of between 50 and 74,9%; coverage in São Paulo and Federal District was below 50%.
Conclusion: although, overall, FHS coverage increased, 13 FUs presented coverages below 75% in 2016; therefore, more efforts are needed to universalize coverage.