Newswise — Preschool-aged children who snore have more symptoms of depression and anxiety, as well as impairments in attention and language skills, reports a study in the April issue of the Journal of Developmental & Behavioral Pediatrics. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health, a leading provider of information and business intelligence for students, professionals, and institutions in medicine, nursing, allied health, pharmacy and the pharmaceutical industry.

"The results of our study bring out snoring as a possible risk factor for mood problems and cognitive impairment in children," according to the researchers, led by Eeva T. Aronen, M.D., Ph.D., of Helsinki University Central Hospital, Helsinki, Finland.

Snoring Linked to Depression and Other Mood ProblemsThe researchers studied 43 preschoolers who snored (at least once or twice a week, according to their parents) and 46 children who did not snore. The children, average age five years, were evaluated on standard tests of behavior problems, cognitive (intellectual) function, and development.

The results showed a higher rate of mood problems—especially symptoms of anxiety and depression—among the children who snored. Overall, 22 percent of snoring children had mood disorder symptoms severe enough to warrant clinical evaluation, compared to 11 percent of the children who did not snore. Other types of problems, such as aggressive behavior, were no more frequent among children who snored.

The snoring children were more likely to have other sleep problems, such as nightmares, talking in their sleep, or difficulties going to bed. Cognitive tests also showed some significant differences, including decreased attention and language skills among children who snored.

Treatment May Help to Prevent Later ProblemsSeveral recent studies have linked sleep problems to psychiatric symptoms and cognitive functions in children. Snoring is a common symptom of sleep-disordered breathing (SDB), which is caused by obstruction of the upper airway during sleep. Previous studies of the mental health and cognitive impact of SDB in children have been limited to school-age children. The new results provide evidence of similar links in younger children as well.

Knowing the mental health and developmental impact of SDB in preschool-aged children will help pediatricians and other professionals to recognize the underlying sleep problem, Dr. Aronen and colleagues believe. They write, "This makes intervening possible before underachieving at school or before more difficult emotional and/or behavioral symptoms develop." More research will be needed to evaluate effective treatments for young children with snoring, and whether they help to alleviate the impact on the children's mood and cognitive functioning.

About the Journal of Developmental & Behavioral PediatricsWritten for physicians, clinicians, psychologists and researchers, each bimonthly issue of the Journal of Developmental & Behavioral Pediatrics (www.jrnldbp.com) is devoted entirely to the developmental and psychosocial aspects of pediatric health care. Each issue brims with original articles, case reports, challenging cases and reviews—the latest work of many of today's best known leaders in related fields—that help professionals across disciplines stay current with information in the field. Relevant areas covered include learning disorders, developmental disabilities, and emotional, behavioral, and psychosomatic problems. Journal of Developmental & Behavioral Pediatrics is the official journal of the Society for Developmental and Behavioral Pediatrics.

About Lippincott Williams & Wilkins Lippincott Williams & Wilkins (LWW) is a leading international publisher for healthcare professionals and students with nearly 300 periodicals and 1,500 books in more than 100 disciplines publishing under the LWW brand, as well as content-based sites and online corporate and customer services. LWW is part of Wolters Kluwer Health, a leading provider of information and business intelligence for students, professionals and institutions in medicine, nursing, allied health, pharmacy and the pharmaceutical industry.

Wolters Kluwer Health is a division of Wolters Kluwer, a leading global information services and publishing company. The company provides products and services for professionals in the health, tax, accounting, corporate, financial services, legal, and regulatory sectors. Wolters Kluwer had 2008 annual revenues of €3.4 billion ($4.9 billion), employs approximately 20,000 people worldwide, and maintains operations in over 35 countries across Europe, North America, Asia Pacific, and Latin America. Wolters Kluwer is headquartered in Amsterdam, the Netherlands. Its shares are quoted on Euronext Amsterdam (WKL) and are included in the AEX and Euronext 100 indices. Visit www.wolterskluwer.com for information about our market positions, customers, brands, and organization.

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