title: Diet and age at menarche.
abstract: Early menarche has been associated with higher risk of breast cancer. A prospective study has been conducted in Quebec City, Canada, to evaluate the relationship of dietary intake to age at menarche. On three occasions during the schoolyear 1986-87, 2,299 pre-menarche. Incidence density ratios (IDRs) adjusted for age at entry and mothers' age at menarche were computed using proportional hazards models. IDRs for quartiles of energy, nutrient and food-group intakes were not different from the null value. In this population of well-nourished girls, diet did not influence the age at onset of menarche.
authors.affiliation: Faculté de Médecine, Université Laval, Québec, Canada.
authors.forename: J
authors.initials: J
authors.lastname: Moisan
authors.forename: F
authors.initials: F
authors.lastname: Meyer
authors.forename: S
authors.initials: S
authors.lastname: Gingras
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001827:Body Height; D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology; D001943:Breast Neoplasms / Q000209:etiology*; D002648:Child; D004032:Diet; D002149:Energy Intake; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008572:Menarche / Q000502:physiology*; D016016:Proportional Hazards Models; D011446:Prospective Studies; D011792:Quebec; D012885:Skinfold Thickness