Navigation Links
Study finds an increased risk of death in men with insomnia and a short sleep duration

DARIEN, Ill. A study in the Sept. 1 issue of the journal SLEEP found an elevated risk of death in men with a complaint of chronic insomnia and an objectively measured short sleep duration. The results suggest that public health policy should emphasize the diagnosis and appropriate treatment of chronic insomnia.

Compared to men without insomnia who slept for six hours or more, men with chronic insomnia who slept for less than six hours were four times more likely to die during the 14-year follow-up period (odds ratio = 4.33). Results were adjusted for potential confounders such as body mass index, smoking status, alcohol use, depression and obstructive sleep apnea. Further adjustments for hypertension and diabetes had little effect on the elevated mortality risk (OR = 4.00). No significant mortality risk was found in women with insomnia and a short sleep duration of less than six hours (OR = 0.36).

"The primary finding of our study is that insomnia, the most common sleep disorder, is associated with significant mortality in men," said principal investigator Alexandros N. Vgontzas, MD, professor of psychiatry in the Department of Psychiatry at Penn State College of Medicine and Hershey Medical Center in Hershey, Pa. "Until now no study has demonstrated that insomnia is associated with mortality. Our different results are based on our novel approach to define insomnia both on a subjective complaint and the objective physiological marker of short sleep duration measured in the sleep lab."

The study involved 1,000 women with a mean age of 47 years and 741 men with an average age of 50 years. They provided a comprehensive sleep history, received a physical exam and had their sleep evaluated during one night in a sleep laboratory. Sleep duration was measured objectively by polysomnography, and the presence of chronic insomnia was defined by a complaint of insomnia with a duration of at least one year. Eight percent of women and four percent of men had chronic insomnia with a sleep duration of less than six hours.

After about 10 years of follow-up for women and 14 years for men, 248 participants (14 percent) were deceased. The 14-year adjusted mortality rate for men was 9.1 percent for "good sleepers" and 51.1 percent for insomniacs who slept less than six hours.

Previously published studies based on the same cohort also have shown that chronic insomnia with short sleep duration is associated with deficits in neurocognitive function and increased risks of both type 2 diabetes and hypertension.

"We believe that cumulatively these findings will increase the awareness among physicians and scientists that insomnia should be diagnosed early and treated appropriately," said Vgontzas.

The current study also found an even higher risk of death when men with chronic insomnia and a short sleep duration also had hypertension or diabetes. Insomniacs who slept less than six hours and were diabetic or hypertensive at baseline had a much higher mortality risk (OR = 7.17) than short-sleeping insomniacs without diabetes or hypertension at baseline (OR = 1.45). According to the authors, this suggests that the treatment of insomnia in people with impaired physical health should be a medical priority.

The authors cautioned that six hours of sleep is not recommended as the optimum sleep duration for the general population. They used a six-hour cut-off point only for the statistical evaluation of the severity of insomnia. The American Academy of Sleep Medicine reports that most adults need seven to eight hours of nightly sleep to feel alert and well rested during the day.

The authors also noted that it is unclear why the mortality risk was increased in men but not in women. One explanation may be that the mean follow-up duration was 3.6 years shorter for women than for men, and the sample of women had fewer deaths (103) than the men (145).


Contact: Emilee McStay
American Academy of Sleep Medicine

Related medicine news :

1. Study links shorter sleep durations with greater risks of mental distress in young adults
2. Staggered radiologist work shifts improve patient care, study suggests
3. Study findings show value of dietary supplement SAMe in treatment of adults with major depressive disorders
4. Workers rate safety most important workplace issue in new Labor Day study
5. Study finds asking about pregnancy coercion and intimate-partner violence can reduce their incidence
6. Award-winning study: Hardening of the arteries doubles the risk of mortality
7. McMaster study contradicts reports of problems with blood-thinner
8. Vaccine has cut child cases of bacterial pneumonia, says study
9. Even Before Recession, 14 Million Kids Underinsured: Study
10. Penn study sheds light on how the brain shifts between sleep/awake states under anesthesia
11. Study Links Gene to Serious Eye Disease
Post Your Comments:
(Date:11/24/2015)... ... November 24, 2015 , ... ... States to support their local poison centers through donations on Tuesday, Dec. 1, ... calls it “a day that inspires people to collaborate in improving their local ...
(Date:11/24/2015)... R.I. (PRWEB) , ... November 24, 2015 , ... With ... Amica Insurance is sharing safety tips to help protect your family and vehicle. , ... crashes around the 2013 Thanksgiving holiday weekend. Amica is sharing the following safety tips ...
(Date:11/24/2015)... ... November 24, 2015 , ... ... designated an Aetna Institute of Quality® Bariatric Surgery Facility for treating individuals living ... cost of health care services available to its members to help them make ...
(Date:11/24/2015)... ... November 24, 2015 , ... Sir Grout of Baltimore is ... certification. The award recognizes good companies for excellence in service and a commitment ... and hard surface restoration company earned this recognition after a thorough review by ...
(Date:11/24/2015)... York, N.Y. (PRWEB) , ... November 24, 2015 , ... ... Giving Tuesday, the global movement driven by social media and the generosity of people ... Speaks, then encourage their social media networks to give – and share the personal ...
Breaking Medicine News(10 mins):
(Date:11/24/2015)... 2015 F1000Workspace - a research ... it was launched just six months ago. --> ... platform for scientists - since it was launched just six ... loaded on to F1000Workspace - a research collaboration, ... was launched just six months ago. --> ...
(Date:11/24/2015)... 1, a free mobile-first network that enables healthcare professionals ... new completely redesigned web version that includes uploading. The ... primarily on a desktop, to upload images directly from ... base, Figure 1 is hosting an event during the ... (RSNA) Annual Meeting. Joshua Landy , ...
(Date:11/24/2015)... -- iRhythm Technologies, Inc. , a leading digital health care ... will participate in the 27th Annual Piper Jaffray Healthcare Conference at ... . Kevin King , Chief Executive Officer of ... 8:50am ET. --> --> ... . --> iRhythm is a privately held ...
Breaking Medicine Technology: