Risk Factors for Stomach Cancer in Brazil (II): a Case-control Study among Japanese Brazilians in São Paulo

• Published in: Japanese journal of clinical oncology 2002-08, Vol.32 (8), p.284-290
• Main Authors: Hamada, Gerson Shigueaki, Kowalski, Luiz Paulo, Nishimoto, Inês Nobuko, Rodrigues, Joaquim José Gama, Iriya, Kiyoshi, Sasazuki, Shizuka, Hanaoka, Tomoyuki, Tsugane, Shoichiro
• Format: Article
• Language: English
• Subjects: Key words: stomach cancer – case-control study – Japanese Brazilians – diet
• ISSN: 0368-2811; 1465-3621
• DOI: 10.1093/jjco/hyf061

Background: Although stomach cancer is the most frequent cancer among Japanese Brazilians, the risk factor of this cancer has not been investigated among them. Methods: A case-control study was conducted among Japanese residents in the city of São Paulo. Ninety-six consecutive cases of histologically confirmed stomach cancer were matched to 192 controls admitted for non-neoplastic diseases or healthy volunteer (n = 80) by age (±5 years) and gender. The socio-demographic characteristics, personal and family medical history, lifetime history of tobacco use and dietary habits were probed using a structured questionnaire. Results: Frequent consumption of beef was associated with increased risk: odds ratio (OR) = 4.0 and 95% confidence interval (CI) = 1.9–8.4 for daily consumption, OR = 2.1 and 95% CI = 1.0–4.3 for 3–4 days/week) when compared with the category of lower consumption (