Featured Research

from universities, journals, and other organizations

People Overestimate Their Self-reported Sleep Times Compared To Measures By A Sleep Test

Date:
October 16, 2007
Source:
American Academy of Sleep Medicine
Summary:
Self-reports of total sleep times, both habitually and on the morning after a polysomnogram, or a sleep test, tend to be higher than objectively measured sleep times.

Self-reports of total sleep times, both habitually and on the morning after a polysomnogram (PSG), or a sleep test, tend to be higher than objectively measured sleep times, according to a study published in the October 15 issue of the Journal of Clinical Sleep Medicine.

Graciela E. Silva, PhD, of Arizona State University, analyzed a total of 2,113 subjects who were 40 years of age or older. The participants were 53 percent female, 75 percent Caucasian and 38 percent obese. Dr. Silva compared the subjects' total sleep time and sleep onset latency obtained from unattended home PSGs to sleep times obtained from the Sleep Heart Health Study (SHHS) Sleep Habits Questionnaire, completed before the PSG and the morning after the PSG. The SHHS Sleep Habits Questionnaire contained questions regarding sleep habits, smoking status as well as cardiovascular and respiratory problems.

The results showed that the mean habitual sleep time was 422 minutes, while the mean morning estimated sleep time was 379 minutes and mean PSG total sleep time was 363 minutes. The mean habitual sleep onset latency was 17 minutes, while the mean morning estimated sleep onset latency was 21.8 minutes and mean PSG sleep onset latency was 16.9 minutes.

Models adjusting for related demographic factors showed that the mean habitual sleep time differed significantly from the PSG total sleep time by 61 minutes. The mean morning estimated sleep time differed fom the PSG total sleep time by 18 minutes.

Further, obese and higher educated people reported less sleep time than their counterparts. Similarly, small but significant differences were seen for sleep latency.

"The findings from this study suggest that results from studies subjectively assessing sleep times may not be comparable to those using objective determinations," said Dr. Silva.

The SHHS is a prospective multicenter cohort study designed to investigate the relationship between sleep disordered breathing and cardiovascular diseases in the United States.

Those who suspect that they might have a sleep disorder are encouraged to see their primary care physician or a sleep medicine specialist.

The article is entitled, "Relationship Between Reported and Measured Sleep Times: The Sleep Heart Health Study (SHHS)."


Story Source:

The above story is based on materials provided by American Academy of Sleep Medicine. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Sleep Medicine. "People Overestimate Their Self-reported Sleep Times Compared To Measures By A Sleep Test." ScienceDaily. ScienceDaily, 16 October 2007. <www.sciencedaily.com/releases/2007/10/071015081530.htm>.
American Academy of Sleep Medicine. (2007, October 16). People Overestimate Their Self-reported Sleep Times Compared To Measures By A Sleep Test. ScienceDaily. Retrieved September 15, 2014 from www.sciencedaily.com/releases/2007/10/071015081530.htm
American Academy of Sleep Medicine. "People Overestimate Their Self-reported Sleep Times Compared To Measures By A Sleep Test." ScienceDaily. www.sciencedaily.com/releases/2007/10/071015081530.htm (accessed September 15, 2014).

Share This



More Health & Medicine News

Monday, September 15, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

EU Ministers and Experts Meet to Discuss Ebola Reponse

EU Ministers and Experts Meet to Discuss Ebola Reponse

AFP (Sep. 15, 2014) The European Commission met on Monday to coordinate aid that the EU can offer to African countries affected by the Ebola outbreak. Duration: 00:58 Video provided by AFP
Powered by NewsLook.com
Despite The Risks, Antibiotics Still Overprescribed For Kids

Despite The Risks, Antibiotics Still Overprescribed For Kids

Newsy (Sep. 15, 2014) A new study finds children are prescribed antibiotics twice as often as is necessary. Video provided by Newsy
Powered by NewsLook.com
FDA Eyes Skin Shocks Used at Mass. School

FDA Eyes Skin Shocks Used at Mass. School

AP (Sep. 15, 2014) The FDA is considering whether to ban devices used by the Judge Rotenberg Educational Center in Canton, Massachusetts, the only place in the country known to use electrical skin shocks as aversive conditioning for aggressive patients. (Sept. 15) Video provided by AP
Powered by NewsLook.com
Respiratory Virus Spreads To Northeast, Now In 21 States

Respiratory Virus Spreads To Northeast, Now In 21 States

Newsy (Sep. 14, 2014) The respiratory virus Enterovirus D68, which targets children, has spread from the Midwest to 21 states. Video provided by Newsy
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:
from the past week

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