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Breastfeeding and childbearing may prevent early menopause

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2020-02-12T18:45:06+05:30  |  Updated On 12 Feb 2020 6:45 PM IST
Breastfeeding and childbearing may prevent early menopause
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AMHERST, Mass. -Breastfeeding and childbearing may prevent early menopause is the finding of one of the largest studies. Details of the study have appeared in the online open-access journal JAMA Network Open.

Results of a new epidemiological analysis of more than 108,000 women observed a lower risk of early menopause among women who had at least one pregnancy lasting at least six months and among those who had breastfed their infants. Further, the risk was lowest among those who breastfed exclusively. The work is by the first author and Ph.D. student Christine Langton, with her advisor Elizabeth Bertone-Johnson at the University of Massachusetts Amherst's School of Public Health and Health Sciences.

These two factors, pregnancy (parity) and breastfeeding, generally prevent ovulation and may slow the natural depletion of ovarian follicles over time, the authors point out. Thus pregnancy and breastfeeding are believed to lower the risk of early menopause, which is defined as the end of menstruation before age 45. Early menopause is associated with an increased risk of cardiovascular disease, cognitive decline, and osteoporosis.

Langton and colleagues suggest that while their results did not demonstrate a clear dose-response for breastfeeding, their findings are consistent with the hypothesis that a biological mechanism is influenced by longer breastfeeding. Also, findings from other studies support that optimal benefits from breastfeeding exclusively, for both mother and baby, reach a threshold between six and 12 months. Breastfeeding exclusively means that the baby receives no liquids or solid foods, only breast milk.

As Langton explains, "In our study, women with three or more pregnancies who breastfed exclusively for a total of 7 to 12 months had about a 32% lower risk of early menopause compared to women with the same number of children who breastfed exclusively for less than one month." Langton and colleagues also observed what they call other notable associations. Compared to women with no full-term pregnancies, women who had two pregnancies had a 16% lower risk of early menopause and women with three pregnancies saw a 22% lower risk.

The authors believe theirs is the first prospective cohort study to look at the relationship between breastfeeding and the risk of early menopause. They point out that only one other study had examined the relationship of parity (number of children) to the risk of early natural menopause.

Langton says, "Our study has a lot of strength because of the large sample size, the 26 years of follow-up and the prospective design. Also, at baseline we limited our study to women who were premenopausal, which is a key point," she adds, along with their careful control for many confounders.

"Our breastfeeding findings not only add new insight into ways to prevent early menopause," she points out, "but they align nicely with recommendations of both the American Academy of Pediatrics and World Health Organization that US women exclusively feed their infants breastmilk for at least six months and continue breastfeeding for up to one year," Langton notes.

For this work, Langton and colleagues conducted their prospective, population-based study within the on-going Nurses' Health Study II cohort that began collecting data in 1989. They report that response rates were 85-90%. Parity, menopause status, and age were measured at baseline and every two years, while breastfeeding factors were assessed three times during follow-up. Women in the study were followed until menopause or age 45, hysterectomy, oophorectomy, death, cancer diagnosis or loss to follow-up.

Source : JAMA Network Open
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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