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 December 20, 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 December 20, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
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