Obesity linked with sleep disordered breathing

	Tweet

Waist size and body mass index are independently associated with sleep disordered breathing in school-age children, according to new research published in the current issue of Sleep.

Sleep disordered breathing takes in a wide spectrum of sleep-related breathing abnormalities, including minor upper airway resistance causing snoring, upper airway resistance syndrome, and obstructive sleep apnea syndrome.

The authors suggest that, as in adults, metabolic and inflammatory factors may be implicated in the development of snoring and obstructive sleep apnea in children. 

To investigate, Dr. Edward O. Bixler and associates at Penn State University College of Medicine in Hershey, Pennsylvania, examined the prevalence of and risk factors for sleep disordered breathing “based on the largest population-based sample of elementary school-aged children available to date.”

Parents of 5740 children in kindergarten through grade 5 completed questionnaires regarding their children’s sleep and behavioral patterns. A random selection of 700 children, stratified by grade, gender, and risk for sleep disordered breathing, underwent physical evaluations and 9-hour overnight sleep monitoring.

Severity levels were classified as primary snoring, mild sleep disordered breathing or moderate sleep disordered breathing. The prevalence was 15.5 percent for primary snoring, 25.0 percent for mild sleep disordered breathing and 1.5 percent for moderate sleep disordered breathing.

Upon further analysis, Bixler’s group found that waist size was a significant predictor of sleep disordered breathing at all three levels of severity.

By contrast, tonsil size was not a significant independent risk factor at any degree of severity, suggesting that removal of the tonsils and adenoids may not always be the best first-line treatment.

In children with primary snoring, there was also a negative association with increasing age, and minority status (Black or Hispanic), and a positive association with enlargement of the cervical lymph nodes on both sides of the neck. For mild sleep disordered breathing, nasal abnormalities, including chronic Sinusitis, rhinitis, nasal obstruction and minority status were also significant predictors.

Aside from waist size, long soft palate was the only identified risk factor for moderate sleep disordered breathing.

Factors not associated with sleep disordered breathing included middle ear effusion, abnormally large tongue, underdeveloped the jaw, chronic cough and wheeze, the authors note.

“Risk factors for sleep disordered breathing in children are complex and include metabolic, inflammatory and anatomic factors,” Bixler remarked in a prepared statement.

“Because sleep disordered breathing in children is not just the outcome of anatomical abnormalities, treatment strategies should consider alternative options, such as weight loss and correction of nasal problems.”

SOURCE: Sleep, June 2009.

RELATED STORIES:
Weight Loss Can be Contagious, Study Suggests   Toss Cravings, Lose Weight   Anti-obesity drugs with a modified lifestyle helps weight loss -new study   Dieting with the denomination, determination   Device makers urge coverage of weight-loss surgery   Frequent eating tied to less weight gain in girls   Pick Up the Cell Phone, Drop the Pounds   FDA takes aim at “unproven” HCG weight-loss brands   Nervous system activity may predict successful weight loss   Mid-Morning Snacking May Sabotage Weight-Loss Efforts   Safety data favors less-invasive weight-loss surgery   Exploring The Role Of Endoscopy In Treating Obesity

Comments

[ + Post Your Own ]

Now you're in the public comment zone. What follows is not Armenian Medical Network's stuff; it comes from other people and we don't vouch for it. A reminder: By using this Web site you agree to accept our Terms of Service. Click here to read the Rules of Engagement.

There are no comments for this entry yet. [ + Comment here + ]