Featured Research

from universities, journals, and other organizations

Sleep Apnea More Common, Severe In Post-Menopausal Women

Date:
May 9, 2000
Source:
University Of Toronto
Summary:
Sleep apnea is more common and severe in post-menopausal women, and is likely due to decreased levels of female hormones, say clinical researchers at the University of Toronto and St. Michael's Hospital.

Sleep apnea is more common and severe in post-menopausal women, and is likely due to decreased levels of female hormones, say clinical researchers at the University of Toronto and St. Michael's Hospital.

Related Articles


Researchers compared the prevalence and severity of sleep apnea between 290 pre- and 400 post-menopausal women at the St. Michael's Hospital Sleep Laboratory. They measured neck size and obesity, the usual markers of sleep apnea, to determine if any differences in these variables could explain the differences in apnea prevalence and severity. They found that 47 per cent of post-menopausal women suffered from sleep apnea compared to 21 per cent of pre-menopausal women, and that the condition was more severe in the post-menopausal group. This study was unique in the relatively large size of its female population and its consistent use of sleep study data.

"Our study shows that the greater incidence and severity of sleep apnea in these older women cannot be attributed to the usual anatomical differences like neck circumference or obesity," says Dr. David Dancey, a lecturer in the Faculty of Medicine at U of T and a clinical research fellow in the sleep laboratory at St. Michael's Hospital. "We think the difference may be due to the lower levels of estrogen and progesterone caused by menopause."

The study's authors used age as an indicator of menopause. Women under 45 were classified as pre-menopausal while women over 55 were classified as post-menopausal, and any patients with a history of hormone supplementation or premature menopause were excluded. While the researchers did not specifically measure hormone levels, Dancey points to previous studies which have shown the median age of menopause is 51 and begins for most women at 47.

"Now that we know structural differences like neck size and obesity don't explain the observed differences in apnea prevalence and severity between these two groups of women, we can begin looking at whether or not hormone therapy will be helpful for these women," says Dancey, the study's lead author. This study was funded in part by the Ontario Thoracic Society and is being presented in abstract form at the 96th International Conference of the American Thoracic Society in Toronto, May 5 to May 10, 2000.

CONTACT:

Steven de Sousa
U of T Public Affairs
(416) 978-5949
[email protected]


Story Source:

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


Cite This Page:

University Of Toronto. "Sleep Apnea More Common, Severe In Post-Menopausal Women." ScienceDaily. ScienceDaily, 9 May 2000. <www.sciencedaily.com/releases/2000/05/000508114736.htm>.
University Of Toronto. (2000, May 9). Sleep Apnea More Common, Severe In Post-Menopausal Women. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2000/05/000508114736.htm
University Of Toronto. "Sleep Apnea More Common, Severe In Post-Menopausal Women." ScienceDaily. www.sciencedaily.com/releases/2000/05/000508114736.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
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. 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