title: Association of Milk and Meat Consumption with the Development of Breast Cancer in a Western Mexican Population.
abstract: BACKGROUND
  Breast cancer is a public health problem and it is the most common gynecologic neoplasia worldwide. The risk factors for its development are of both hereditary and environmental origin. Certain foods have been clearly associated with modifying the breast cancer risk. The aim of the present analysis was to evaluate the effects of cow's milk and meat consumption on the development of breast cancer in a population from Western Mexico (Colima).
  
  
  METHODS
  We studied 97 patients presenting with a histopathologic diagnosis of breast cancer and 104 control individuals who did not present with the disease (Breast Imaging Report and Data System (BI-RADS) 1-2). 80% of the population belonged to a low socioeconomic stratum. The main clinical characteristics were analyzed along with the lifetime consumption of meat and milk.
  
  
  RESULTS
  High milk consumption increased the breast cancer risk by 7.2 times (p = 0.008) whereas the consumption of meat was not significantly associated with the disease.
  
  
  CONCLUSIONS
  High consumption of cow's milk was a risk factor for the development of breast cancer. Further studies are needed to evaluate the effects of dietary patterns on the development of breast cancer in diverse populations with ethnic, cultural, and economic differences.
authors.affiliation: Instituto Estatal de Cancerologıa, Servicios de Salud del Estado de Colima, Mexico; School of Medicine, University of Colima, Mexico.
authors.forename: Hector R
authors.initials: HR
authors.lastname: Galván-Salazar
authors.affiliation: School of Medicine, University of Colima, Mexico.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Arreola-Cruz
authors.affiliation: Instituto Estatal de Cancerologıa, Servicios de Salud del Estado de Colima, Mexico; School of Medicine, University of Colima, Mexico.
authors.forename: Daniela
authors.initials: D
authors.lastname: Madrigal-Pérez
authors.affiliation: Instituto Estatal de Cancerologıa, Servicios de Salud del Estado de Colima, Mexico; School of Medicine, University of Colima, Mexico.
authors.forename: Alejandro D
authors.initials: AD
authors.lastname: Soriano-Hernández
authors.affiliation: Hospital General de Zona N 1 del IMSS, Colima, Mexico.
authors.forename: Jose
authors.initials: J
authors.lastname: Guzman-Esquivel
authors.affiliation: School of Medicine, University of Colima, Mexico.
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Montes-Galindo
authors.affiliation: Hospital General de Zona N 1 del IMSS, Colima, Mexico.
authors.forename: Rodrigo A
authors.initials: RA
authors.lastname: López-Flores
authors.affiliation: School of Medicine, University of Colima, Mexico.
authors.forename: Francisco
authors.initials: F
authors.lastname: Espinoza-Gomez
authors.affiliation: Department of Genetics, School of Medicine, Universidad Autonoma de Nuevo Leon, Mexico.
authors.forename: Iram P
authors.initials: IP
authors.lastname: Rodríguez-Sanchez
authors.affiliation: School of Medicine, University of Colima, Mexico.
authors.forename: Oscar A
authors.initials: OA
authors.lastname: Newton-Sanchez
authors.affiliation: School of Medicine, University of Colima, Mexico.
authors.forename: Agustin
authors.initials: A
authors.lastname: Lara-Esqueda
authors.affiliation: Academic Unit of Human Medicine and Health Sciences, Universidad Autonoma de Zacatecas, Mexico.
authors.forename: Margarita L
authors.initials: ML
authors.lastname: Martinez-Fierro
authors.affiliation: Instituto Estatal de Cancerologıa, Servicios de Salud del Estado de Colima, Mexico.
authors.forename: Xochitl G
authors.initials: XG
authors.lastname: Briseño-Gomez
authors.affiliation: Instituto Estatal de Cancerologıa, Servicios de Salud del Estado de Colima, Mexico; School of Medicine, University of Colima, Mexico.
authors.forename: Ivan
authors.initials: I
authors.lastname: Delgado-Enciso
keywords: Breast cancer; Risk factors; Tumorigenesis