Featured Research

from universities, journals, and other organizations

Sleep Apnea, Depression Linked In Stanford Study

Date:
November 7, 2003
Source:
Stanford University Medical Center
Summary:
People with depression are five times more likely to have a breathing-related sleep disorder than non-depressed people, according to a study at the Stanford University School of Medicine. The study is the first to show a link between depression and sleep apnea along with its related disorders.

STANFORD, Calif. - People with depression are five times more likely to have a breathing-related sleep disorder than non-depressed people, according to a study at the Stanford University School of Medicine. The study is the first to show a link between depression and sleep apnea along with its related disorders.

Although it remains unclear how the conditions are linked, Maurice Ohayon, MD, PhD, said his study should encourage physicians to test depressed patients for this type of sleep disorder.

"Physicians who see people with depression shouldn't stop at the first diagnosis, but instead look into the presence of a breathing-related sleep disorder," said Ohayon, an associate professor of psychiatry and behavioral sciences. His study appears in the current issue of the Journal of Clinical Psychiatry.

These disorders include such breathing anomalies as chronic, disruptive snoring and obstructive sleep apnea syndrome, a disorder in which people stop breathing for brief periods up to hundreds of times a night. Left untreated, the disorders can lead to hypertension, stroke and cognitive deterioration. They can also affect a person's daily routine and disrupt his or her familial, social and professional life.

"This type of disorder increases a person's chances of feeling sleepy and irritable, having a dispute with a family member or colleague, or getting into a traffic accident," said Ohayon.

Several studies have suggested that sleep apnea is associated with a higher rate of depressive disorder and that treating sleep apnea could help control depression in patients. But no previous study had explored this association and its risk factors in the general population.

To assess the impact of the two disorders in the general population, Ohayon conducted a telephone survey with adults in five countries (the United Kingdom, Germany, Italy, Portugal and Spain). More than 18,000 people were chosen as a representative sample of 206 million Europeans. The participants answered questions pertaining to sleep quality and schedules, breathing-related sleep disorders, mental disorders and medical conditions.

After analyzing the data, Ohayon found that 2.1 percent of the people surveyed had sleep apnea - a figure consistent with data from past studies on selected populations - and 2.5 percent had another type of breathing-related sleep disorder. Eighteen percent of respondents who were experiencing a depressive disorder (4 percent of all respondents) also had a breathing-related sleep disorder, compared with 3.8 percent of non-depressed respondents. That represents a five-times increased likelihood of breathing-related sleep disorders among depressed people.

"This is the first study to show the strength of the link between the two disorders," said Ohayon, adding that even after controlling for obesity and hypertension (important factors in each disorder) the association remained strong.

It remains unclear whether depression occurred before or after sleep apnea, and to what extent sleep apnea contributes to the maintenance or aggravation of depression. Ohayon said the link between treating sleep apnea syndrome and the evolution of depressive disorders needs further investigation. He hopes physicians will consider the association between the disorders and depression when treating depressed patients. "Once people have their sleep apnea recognized, there is a lot we can do to help them," he said.

Ohayon received funding for his research from the Medical Research Council of Quebec and an unrestricted educational grant from the Sanofi-Synthelabo Group, a pharmaceutical company.

###

Stanford University Medical Center integrates research, medical education and patient care at its three institutions - Stanford University School of Medicine, Stanford Hospital & Clinics and Lucile Packard Children's Hospital at Stanford. For more information, please visit the Web site of the medical center's Office of Communication & Public Affairs at http://mednews.stanford.edu.


Story Source:

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


Cite This Page:

Stanford University Medical Center. "Sleep Apnea, Depression Linked In Stanford Study." ScienceDaily. ScienceDaily, 7 November 2003. <www.sciencedaily.com/releases/2003/11/031107060606.htm>.
Stanford University Medical Center. (2003, November 7). Sleep Apnea, Depression Linked In Stanford Study. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2003/11/031107060606.htm
Stanford University Medical Center. "Sleep Apnea, Depression Linked In Stanford Study." ScienceDaily. www.sciencedaily.com/releases/2003/11/031107060606.htm (accessed October 22, 2014).

Share This



More Health & Medicine News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com
U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

Newsy (Oct. 22, 2014) Now that the U.S. is restricting travel from West Africa, some are dropping questions about a travel ban and instead asking about visa bans. Video provided by Newsy
Powered by NewsLook.com
US to Track Everyone Coming from Ebola Nations

US to Track Everyone Coming from Ebola Nations

AP (Oct. 22, 2014) Stepping up their vigilance against Ebola, federal authorities said Wednesday that everyone traveling into the US from Ebola-stricken nations will be monitored for symptoms for 21 days. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Doctors Help Paralysed Man Walk Again, Patient in Disbelief

Doctors Help Paralysed Man Walk Again, Patient in Disbelief

AFP (Oct. 22, 2014) Polish doctors describe how they helped a paralysed man walk again, with the patient in disbelief at the return of sensation to his legs. Duration: 1:04 Video provided by AFP
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