Cross-validation of four different survey methods used to estimate illicit cigarette consumption in Brazil.
André Salém SzkloRoberto Magno IglesiasMichal StoklosaValeska Carvalho FigueiredoKevin WeldingPaulo Roberto Borges de Souza JuniorAlessandra Trindade MachadoLuis Felipe Leite MartinsHannah NascimentoJeffrey DropePublished in: Tobacco control (2020)
Small differences in the estimated levels of illicit trade across methods were found, except for the phone survey. The cross-validation of estimates from independent studies is important to help effectively implement tobacco excise tax policy in Brazil and other low-income and middle-income countries.