title: Risk Factors for Breast Cancer in Postmenopausal Women in Brazil.
abstract: OBJECTIVE
  To analyze risk factors for postmenopausal breast cancer.
  
  
  METHODS
  The present casecontrol study included 600 women treated at a cancer center reference hospital in a municipality in the South of Brazil.
  
  
  RESULTS
  Totals of 100 patients and 500 control subjects were evaluated. The mean age of the women was 52.5 ± 11.9 years; the average was 57.4 ± 11.8 years, and the average age of the control subjects was 51.5 ± 11.7 years. The risk factors for breast cancer that were considered included an age ≥ 40 years, postmenopausal status, a body mass index (BMI) ≥ 30 kg/m2, and reduced physical activity. Variables like postmenopausal status and an obese BMI were associated with cases of breast cancer. Women who were postmenopausal or obese were 3.80 or 1.80 times more likely to develop breast cancer, respectively, and physically inactive women were 1.72 times more likely to develop breast cancer.
  
  
  CONCLUSIONS
  Obesity and postmenopausal status are associated with the occurrence of breast cancer in this population. Being over 40 years of age was also a statistically significant factor for postmenopausal women.
authors: Nurging, Maringa State University, Maringa State University, Maringa, Brazil Email : deisepelloso@gmail.com.
authors: Deise Helena Pelloso
authors: DH
authors: Borghesan
authors: Catia Millene Dell
authors: CM
authors: Agnolo
authors: Angela Andreia Franca
authors: AA
authors: Gravena
authors: Marcela de Oliveira
authors: Mde O
authors: Demitto
authors: Tiara Cristina Romeiro
authors: TC
authors: Lopes
authors: Maria Dalva de Barros
authors: MD
authors: Carvalho
authors: Sandra Marisa
authors: SM
authors: Pelloso
mesh_terms: D015992:Body Mass Index; D001938:Brazil / Q000453:epidemiology; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000209:etiology*; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D009765:Obesity / Q000150:complications; D017698:Postmenopause; D012307:Risk Factors