Epidemiologic Correlates with Menstrual Cycle Length in Middle Aged Women

While irregular menstruations have been associated with lower cumulative exposure to the ovarian steroids, shorter regular cycles have been postulated to increase the cumulative exposure. Epidemiological correlates with menstrual patterns were analyzed among 4900 premenopausal women aged 45 or young...

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Bibliographic Details
Published in:European journal of epidemiology 1999-10, Vol.15 (9), p.809-814
Main Authors: Kato, Ikuko, Toniolo, Paolo, Koenig, Karen L., Shore, Roy E., Zeleniuch-Jacquotte, Anne, Akhmedkhanov, Arslan, Riboli, Elio
Format: Article
Language:English
Subjects:
Adult
Age Factors
Biological and medical sciences
Body Mass Index
Breast cancer
Cigarette smoking
Cigarettes
Cohort Studies
Dietary Fats - adverse effects
Epidemiologic Factors
Epidemiology
Estrogens
Female
Gender equality
Gonadal Steroid Hormones - adverse effects
Gynecology. Andrology. Obstetrics
Humans
Medical sciences
Menarche
Menstrual cycle
Menstrual Cycle - physiology
Menstruation
Menstruation Disturbances - etiology
Middle Aged
New York
Obesity - complications
Parity
Premenopause - physiology
Puberal and climacteric disorders (male and female)
Risk Factors
Smoking - adverse effects
Steroids
Surveys and Questionnaires
Time Factors
Citations: Items that cite this one
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Summary:While irregular menstruations have been associated with lower cumulative exposure to the ovarian steroids, shorter regular cycles have been postulated to increase the cumulative exposure. Epidemiological correlates with menstrual patterns were analyzed among 4900 premenopausal women aged 45 or younger from the New York University Women's Health Study. The length of regular menstrual cycles increased with increasing age at menarche, body mass index and parity, but decreased with age, nonwhite racial background and current smoking. The likelihood of irregular cycles increased with increasing age, body mass index and number of cigarettes smoked per day. With adjustment for age, body mass index and number of cigarettes smoked per day, the risk of irregular cycles was marginally positively associated with total fat intake.
ISSN:0393-2990
1573-7284
DOI:10.1023/A:1007669430686