Risk and Protective Factors for Breast Cancer in Midwest of Brazil

Table 1

The inclusion and exclusion criteria of women with breast cancer (cases) and their controls (Midwest, Brazil, 2008–2010).

	Inclusion criteria	Exclusion criteria
Cases	Histopathological breast cancer diagnosis given in the same data or within a week of the interview; No prior treatment (e.g., surgery, radiotherapy, chemotherapy); No previous history of cancer in other parts of the body; Breast cancer stage III or lower; Agreement of signing written informed consent	No breast cancer; Already in treatment; Previous history of other types of cancer; Advanced cancer (stage IV)*; Women who had received counseling from a registered dietitian; Pregnant or puerperal women; Mental or physical disabilities that would hinder the interview
Controls	Age-matched subjects (±5 years); No medical history of cancer; Agreement of signing written informed consent	Medical history of breast disease or any type of cancer; Women who had received counseling from a registered dietitian; Pregnant or puerperal women; Mental or physical disabilities that would hinder the interview

*Stage IV cases were excluded because these patients probably would have more pronounced clinical symptoms, such as significant weight change, that could impair data qualify.