title: Estimates of thyroid cancer incidence in Brazil: an approach using polynomial models.
abstract: This study aimed to estimate thyroid cancer incidence in Brazil in 2006 using polynomial models that take age and birth cohort effects into account in the estimation process. Estimates were based on new cases of thyroid cancer in nine Brazilian cities (Manaus, Palmas, Natal, Recife, Cuiabá, Belo Horizonte, São Paulo, Porto Alegre, and Curitiba) and the Federal District from 1997 to 2001. We estimated 6,066 new cases, of which 1,065 in men and 5,001 in women. The incidence rates were, respectively, 1.16 and 5.27 per 100,000 inhabitants. Rates increased with age in both genders, especially after 30 years. The size and profile of rates according to age and gender indicate that the method yields plausible estimates.
authors.affiliation: Instituto de Estudos em Saúde Coletiva, Universidade Federal do Rio de Janeiro, Brasil. brito@iesc.ufrj.br
authors.forename: Alexandre dos Santos
authors.initials: Ados S
authors.lastname: Brito
authors.forename: Cláudia Medina
authors.initials: CM
authors.lastname: Coeli
authors.forename: Flávia dos Santos
authors.initials: Fdos S
authors.lastname: Barbosa
authors.forename: Rosangela
authors.initials: R
authors.lastname: Caetano
authors.forename: Marceli de Oliveira
authors.initials: Mde O
authors.lastname: Santos
authors.forename: Mario
authors.initials: M
authors.lastname: Vaisman
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001938:Brazil / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D017678:Sex Distribution; D013964:Thyroid Neoplasms / Q000453:epidemiology*