title: Adolescent diet and risk of breast cancer.
abstract: BACKGROUND
  Early life exposures, including diet, have been implicated in the etiology of breast cancer.
  
  
  METHODS
  A nested case-control study was conducted among participants in the Nurses' Health Study who completed a 24-item questionnaire about diet during high school. There were 843 eligible cases diagnosed between onset of study (1976) and before the return of the high school diet questionnaire (1986), who were matched 10:1 with controls on the basis of age.
  
  
  RESULTS
  Women who had, during adolescence, a higher consumption of eggs, vegetable fat and fiber had a lower risk of breast cancer, whereas risk of breast cancer was increased among women who consumed more butter.
  
  
  CONCLUSIONS
  A possible association of elements of adolescent diet with risk of breast cancer is reported, but the findings require confirmation in prospective study.
authors.affiliation: Division of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. lindsay.frazier@channing.harvard.edu
authors.forename: A Lindsay
authors.initials: AL
authors.lastname: Frazier
authors.forename: Catherine Tomeo
authors.initials: CT
authors.lastname: Ryan
authors.forename: Helaine
authors.initials: H
authors.lastname: Rockett
authors.forename: Walter C
authors.initials: WC
authors.lastname: Willett
authors.forename: Graham A
authors.initials: GA
authors.lastname: Colditz
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000209:etiology*; D002079:Butter / Q000009:adverse effects; D016022:Case-Control Studies; D002648:Child; D004032:Diet / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D012307:Risk Factors; D011795:Surveys and Questionnaires
chemical_list: D002079:Butter