title: [Dietary factors and oral cancer: a case-control study in Greater Metropolitan São Paulo, Brazil].
abstract: Dietary factors associated with oral cancer were investigated in a case-control hospital-based study in the city of São Paulo, Brazil, from 1998 to 2002. A total of 835 subjects, 366 with histologically confirmed incident cases of oral-cavity or pharyngeal cancer and 469 controls participated in the study. Dietary data were collected with a food frequency questionnaire (FFQ). Odds ratios (OR) and 95% confidence intervals (95%CI) were obtained from unconditional logistic regression, adjusted for potential confounders. Inverse associations with risk of oral cancer were found for the highest intake of beans, OR = 0.37 (95%CI: 0.22-0.64), raw vegetables, OR = 0.51 (95%CI: 0.29-0.93) and the intermediate tertile of rice and pasta intake, OR = 0.56 (95%CI: 0.38-0.83). Positive associations were observed for the highest intake of eggs, OR = 1.84 (95%CI: 1.23-2.75), potatoes, OR = 2.22 (95%CI: 1.53-3.25), and milk, OR= 1.80 (95%CI: 1.09-2.98). Some traditional Brazilian foods like rice and beans emerged as protective factors against oral cancer, independently of other risk factors.
authors.affiliation: Faculdade de Saúde Pública, Universidade de São Paulo, Avenida Dr. Arnaldo 715, São Paulo, SP 01246-904, Brazil. marchioni@usp.br
authors.forename: Dirce Maria Lobo
authors.initials: DM
authors.lastname: Marchioni
authors.forename: Regina Mara
authors.initials: RM
authors.lastname: Fisberg
authors.forename: José Francisco de
authors.initials: JF
authors.lastname: Góis Filho
authors.forename: Luiz Paulo
authors.initials: LP
authors.lastname: Kowalski
authors.forename: Marcos Brasilino de
authors.initials: MB
authors.lastname: Carvalho
authors.forename: Márcio
authors.initials: M
authors.lastname: Abrahão
authors.forename: Maria do Rosario Dias de Oliveira
authors.initials: Mdo R
authors.lastname: Latorre
authors.forename: José
authors.initials: J
authors.lastname: Eluf Neto
authors.forename: Victor
authors.initials: V
authors.lastname: Wünsch-Filho
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000428:Alcohol Drinking / Q000009:adverse effects; D001938:Brazil / Q000453:epidemiology; D004032:Diet; D004034:Diet Surveys; D004812:Epidemiologic Methods; D007887:Fabaceae; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D012275:Oryza; D010610:Pharyngeal Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D017678:Sex Distribution; D012907:Smoking / Q000009:adverse effects; D012959:Socioeconomic Factors; D014505:Urban Population