Navigation Links
Obesity associated with hearing loss in adolescents

NEW YORK (June 17, 2013)Obese adolescents are more likely than their normal-weight counterparts to have hearing loss, according to results of a new study. Findings showed that obese adolescents had increased hearing loss across all frequencies and were almost twice as likely to have unilateral (one-sided) low-frequency hearing loss. The study was recently e-published by The Laryngoscope, a journal published by the American Laryngological, Rhinological and Otological Society.

"This is the first paper to show that obesity is associated with hearing loss in adolescents," said study first author Anil K. Lalwani, MD, professor and vice chair for research, Department of Otolaryngology/Head & Neck Surgery, Columbia University Medical Center.

The study found that obesity in adolescents is associated with sensorineural hearing loss across all frequencies (the frequency range that can be heard by humans); sensorineural hearing loss is caused by damage to the inner-ear hair cells. The highest rates were for low-frequency hearing loss15.16 percent of obese adolescents compared with 7.89 percent of non-obese adolescents. People with low-frequency hearing loss cannot hear sounds in frequencies 2,000 Hz and below; they may still hear sounds in the higher frequencies (normal hearing range is from 20 Hz to 20,000 Hz). Often they can still understand human speech well, but may have difficulty hearing in groups or in noisy places.

"These results have several important public health implications," said Dr. Lalwani, who is also an otolaryngologist at NewYork-Presbyterian Hospital/Columbia University Medical Center. "Because previous research found that 80 percent of adolescents with hearing loss were unaware of having hearing difficulty, adolescents with obesity should receive regular hearing screening so they can be treated appropriately to avoid cognitive and behavioral issues."

Although the overall hearing loss among obese adolescents was relatively mild, the almost 2-fold increase in the odds of unilateral low-frequency hearing loss is particularly worrisome. It suggests early, and possibly ongoing, injury to the inner ear that could progress as the obese adolescent becomes an obese adult. Future research is needed on the adverse consequences of this early hearing loss on social development, academic performance, and behavioral and cognitive function.

"Furthermore, hearing loss should be added to the growing list of the negative health consequences of obesity that affect both children and adultsadding to the impetus to reduce obesity among people of all ages," said Dr. Lalwani.

In the United States, nearly 17 percent of children are obese, defined as having a body mass index (BMI) of ≥95 percentile. (BMI in children is expressed as a percentile; adult BMI is expressed as a number based on weight and height.) Obesity and its associated morbidities have been identified as a risk factor for hearing loss in adults.

The study analyzed data from nearly 1,500 adolescents from the National Health and Nutrition Examination Surveya large, nationally representative sample of adolescents between the ages of 12 and 19, conducted from 2005 to 2006 by the National Center for Health Statistics of the Centers for Disease Control and Prevention. Participants were interviewed at home, taking into account family medical history, current medical conditions, medication use, household smokers, socioeconomic and demographic factors, and noise-exposure history.

Dr. Lalwani and his colleagues speculate that obesity may directly or indirectly lead to hearing loss. Although additional research is needed to determine the mechanisms involved, they theorize that obesity-induced inflammation may contribute to hearing loss. Low plasma levels of the anti-inflammatory protein adiponectin, which is secreted from adipose tissue, have been found in obese children, and low levels in obese adults have been associated with high-frequency hearing loss (which affects a person's ability to understand speech). Obesity also may contribute indirectly to hearing loss as a result of its comorbidities, including type 2 diabetes, cardiovascular disease, and high cholesterolall of which have been reported to be associated with loss of peripheral hearing (relating to the outer, middle, and inner ear).


Contact: Elizabeth Streich
Columbia University Medical Center

Related medicine news :

1. hCGTreatments / Diet Doc hCG Diets & Weight Loss Plans Offers New Improved hCG Diet Plans Designed To Possibly Help Those Suffering From Obesity-Related Depression
2. hCGTreatments / Diet Doc hCG Diets & Weight Loss Plans Announce New Programs to Lose Weight Fast and Fight Obesity Linked to Obsessive-Compulsive Disorders
3. An Incredible Weight Loss Camp Success Story Shares Her Perspective on Obesity Epidemic
4. Women In Government Launches the Childhood Obesity Policy Resource Center
5. Scott Ryan Tischler of Tischler Brothers Fitness Unveils How Victims of Fast Food Obesity can Fight Back this Summer
6. Obesity can be predicted from infancy, CWRU researchers find
7. Dr. OZ Recommended Garcinia Cambogia Extract Now Offers Massive Discount to USA, UK and Australia to Reduce Obesity Ratio
8. Research Found That Obesity Can Affect Genes and Future Generation
9. Neighborhood features could prevent obesity
10. Infant Care May Help Explain Race-Linked Obesity Gap
11. Austin Sports Medicine Presents: Five Tips for Fighting Childhood Obesity
Post Your Comments:
(Date:11/29/2015)... ... 29, 2015 , ... Effective immediately, every single IguanaMed scrub style will be ... Target is offering a “Buy One Scrub Set, Get the 2nd Scrub Set 50% ... IguanaMed at a discounted price. , IguanaMed’s mission is to outfit every ...
(Date:11/28/2015)... ... November 28, 2015 , ... Safe storage for contraceptive devices may not ... from Lakewood, New Jersey and the other from Bradley Beach, New Jersey, there is ... the expense of having to replace NuvaRings more often than necessary. As such, it ...
(Date:11/28/2015)... CA (PRWEB) , ... November 28, 2015 , ... Pixel ... fully customizable media panels to choose from, the possibilities are endless. Users have full ... more. With the ProPanel: Pulse masking effects, users are sure to get heads to ...
(Date:11/27/2015)... Angeles, CA (PRWEB) , ... November 27, 2015 , ... ... study carried out by the University of Toronto and the University of British Columbia ... of hospitalizations for head injuries. The article explains that part of the reason for ...
(Date:11/27/2015)... ... ... A team of Swiss doctors has released a report on mesothelioma relapse ... the findings on the website. Click here to read the details now. ... who were treated with chemotherapy followed by EPP surgery. Among the 106 patients who ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... 25, 2015  The American Academy of Pediatrics ... and the March of Dimes cheered today,s signature ... Infants Act of 2015 (S.799), which takes ... born exposed to drugs, such as opioids, and ... all three organizations have worked together leading advocacy ...
(Date:11/25/2015)... 25, 2015 On Tuesday, November 24, ... trial against Wright Medical Technology, Inc. for product ... metal-on-metal hip implant device, awarded $11 million in ... week trial and three days of deliberations, the ... was defectively designed and unreasonably dangerous, and that ...
(Date:11/25/2015)... TEL AVIV, Israel , November 25, 2015 /PRNewswire/ ... Ltd. (NASDAQ: KTOV ) (TASE: KTOV), a biopharmaceutical ... the simultaneous treatment of various clinical conditions, today announced ... of 3,158,900 American Depository Shares ( ADSs ), each ... to purchase up to 3,158,900 ADSs. The ADSs and ...
Breaking Medicine Technology: