External validation of the estimate of prevalence of smokers in small areas by Vigitel, in Belo Horizonte, Minas Gerais, Brazil.
Regina Tomei Ivata BernalDéborah Carvalho MaltaSérgio William Viana PeixotoMaria Fernanda Furtado Lima E CostaPublished in: Revista brasileira de epidemiologia = Brazilian journal of epidemiology (2021)
The study points out that the estimates of smokers were similar in both surveys, showing the external validity of Vigitel. There was a gradient in prevalence, with progressive increase, identifying a higher proportion of smokers in high-risk areas.