Featured Research

from universities, journals, and other organizations

Excessive Weight Gain During Pregnancy Can Increase Breast Cancer Risk, Study Finds

Date:
April 11, 2002
Source:
Georgetown University Medical Center
Summary:
Gaining more than 50 pounds during pregnancy, and not losing the excess weight post-pregnancy, could triple a woman’s risk of developing breast cancer after menopause, according to a study conducted by researchers at Lombardi Cancer Center in Washington, DC, and in Finland. Pregnancy weight gain of 40 pounds increased breast cancer risk by 40%.

(San Francisco) — Gaining more than 50 pounds during pregnancy, and not losing the excess weight post-pregnancy, could triple a woman’s risk of developing breast cancer after menopause, according to a study conducted by researchers at Lombardi Cancer Center in Washington, DC, and in Finland. Pregnancy weight gain of 40 pounds increased breast cancer risk by 40%. The findings are to be presented April 9 at the American Association for Cancer Research (AACR) annual meeting in San Francisco.

Related Articles


Pregnancy weight gain has been linked in previous studies to increased estrogen levels, which in turn are believed to increase breast cancer risk, researchers said. The researchers’ findings are based on the study of more than 27,000 breast cancer patients in Finland, identified through a national cancer registry. Information about breast cancer diagnosis and pregnancy weight gain were obtained from a national cancer registry, maternity center registries and from a questionnaire completed by the study participants.

“Significant weight gain during pregnancy may cause changes in breast tissue that increase susceptibility to breast cancer in later life—roughly equivalent to the risk of postmenopausal obesity,” said Leena Hilakivi-Clarke, PhD, one of the study’s investigators and associate professor of oncology at the Lombardi Cancer Center at Georgetown University Medical Center. “Women who retain the added pounds after pregnancy are at the greatest risk.”

Weight gain during pregnancy appeared to increase breast cancer risk only after menopause, Hilakivi-Clarke said, adding that each 1 kg (2.2 pounds) increase in pregnancy weight increased breast cancer risk by 3.9%, when adjusted for body mass index before pregnancy.

Weight gain of 25 to 35 pounds is normal in pregnancy and not associated with an increase in risk for either premenopausal or postmenopausal breast cancer, Hilakivi-Clarke noted.

Georgetown University Medical Center includes the nationally ranked School of Nursing & Health Studies, the School of Medicine, the Lombardi Cancer Center and a $120 million biomedical research enterprise.


Story Source:

The above story is based on materials provided by Georgetown University Medical Center. Note: Materials may be edited for content and length.


Cite This Page:

Georgetown University Medical Center. "Excessive Weight Gain During Pregnancy Can Increase Breast Cancer Risk, Study Finds." ScienceDaily. ScienceDaily, 11 April 2002. <www.sciencedaily.com/releases/2002/04/020410075734.htm>.
Georgetown University Medical Center. (2002, April 11). Excessive Weight Gain During Pregnancy Can Increase Breast Cancer Risk, Study Finds. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/2002/04/020410075734.htm
Georgetown University Medical Center. "Excessive Weight Gain During Pregnancy Can Increase Breast Cancer Risk, Study Finds." ScienceDaily. www.sciencedaily.com/releases/2002/04/020410075734.htm (accessed October 31, 2014).

Share This



More Health & Medicine News

Friday, October 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Melafind: Spotting Melanoma Without a Biopsy

Melafind: Spotting Melanoma Without a Biopsy

Ivanhoe (Oct. 31, 2014) The MelaFind device is a pain-free way to check suspicious moles for melanoma, without the need for a biopsy. Video provided by Ivanhoe
Powered by NewsLook.com
Battling Multiple Myeloma

Battling Multiple Myeloma

Ivanhoe (Oct. 31, 2014) The answer isn’t always found in new drugs – repurposing an ‘old’ drug that could mean better multiple myeloma treatment, and hope. Video provided by Ivanhoe
Powered by NewsLook.com
Chronic Inflammation and Prostate Cancer

Chronic Inflammation and Prostate Cancer

Ivanhoe (Oct. 31, 2014) New information that is linking chronic inflammation in the prostate and prostate cancer, which may help doctors and patients prevent cancer in the future. Video provided by Ivanhoe
Powered by NewsLook.com
Sickle Cell: Stopping Kids’ Silent Strokes

Sickle Cell: Stopping Kids’ Silent Strokes

Ivanhoe (Oct. 31, 2014) Blood transfusions are proving crucial to young sickle cell patients by helping prevent strokes, even when there is no outward sign of brain injury. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins