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Antibiotics drastically overprescribed for sore throats, bronchitis

Date:
October 4, 2013
Source:
Infectious Diseases Society of America
Summary:
A vast majority of people who see their doctors for sore throats or acute bronchitis receive antibiotics, yet only a small percentage should, according to analyses of two major national surveys. Those illnesses usually are caused by viruses, and antibiotics -- which only treat bacterial infections -- do not help.

A vast majority of people who see their doctors for sore throats or acute bronchitis receive antibiotics, yet only a small percentage should, according to analyses of two major national surveys being presented at IDWeek 2013™. Those illnesses usually are caused by viruses, and antibiotics -- which only treat bacterial infections -- do not help.

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Harvard University researchers analyzed the National Ambulatory Medical Care Survey and National Hospital Ambulatory Medical Care Survey and determined that doctors prescribed antibiotics in 60 percent of visits for sore throats and 73 percent of visits for acute bronchitis. The antibiotic prescribing rate should be about 10 percent for sore throats and nearly zero for acute bronchitis.

The sore throat analysis is being published in JAMA Internal Medicine, available online today.

While antibiotic stewardship programs have helped reduce the misuse of the the medications in hospitals, the analyses suggest the message isn't reaching the community, with patients continuing to request antibiotics for conditions they don't cure, and doctors prescribing them. The inappropriate use of antibiotics adds to the creation of drug-resistant bacteria, or "superbugs," which are very difficult to treat and are a public health threat.

"Also, people need to understand that by taking antibiotics for viral infections, they're putting something in their bodies that they don't need," said Jeffrey A. Linder, MD, MPH, associate professor of medicine at Harvard Medical School, associate physician at Brigham & Women's Hospital, Boston, and senior author of the study. "Taking antibiotics unnecessarily exposes people to adverse drug reactions, allergies, yeast infections and nausea, with no benefit."

Sore throats caused by streptococcus bacteria ("strep") should be treated with antibiotics. But while people often think they have "strep" throat, streptococcus is the cause only about 10 percent of the time. In most cases, a virus causes the sore throat. Acute bronchitis is almost always viral, and even when bacteria are involved, there is no need for antibiotics unless the patient develops pneumonia, said Dr. Linder.

To assess the antibiotic prescribing rate for sore throat, researchers determined there were 94 million visits to primary care physicians and emergency rooms for sore throats between 1997 and 2010, based on an extrapolation of 8,191 visits. Physicians prescribed antibiotics 60 percent of the time, a decrease from 73 percent from numbers reported by the same authors in 2001.

Regarding acute bronchitis, researchers calculated there were 39 million visits to primary care physicians and emergency rooms between 1996 and 2010, based on a extrapolation of 3,667 actual visits. Researchers determined there was a significant increase in the number of visits for acute bronchitis to primary care doctors, from 1.1 million in 1996 to 3.4 million in 2010. They also noted an increase in the antibiotic prescribing rate in emergency rooms, from 69 percent to 73 percent, during the same 14-year period.

Most sore throats and cases of acute bronchitis should be treated with rest, fluids and using a humidifer, and don't require a visit to the doctor, said Dr. Linder. A cough, runny nose and hoarseness usually are signs that a sore throat is viral, not caused by strep. Pain relievers can help. Essentially a chest cold, acute bronchitis involves swelling and inflammation of the bronchial tubes in the lungs and typically follows a head cold or flu, which are viral infections. The illness lasts a week or two, but the cough, caused by lung irritation, may linger for weeks.


Story Source:

The above story is based on materials provided by Infectious Diseases Society of America. Note: Materials may be edited for content and length.


Journal Reference:

  1. Michael L. Barnett. Antibiotic Prescribing to Adults With Sore Throat in the United States, 1997-2010. JAMA Internal Medicine, 2013; DOI: 10.1001/jamainternmed.2013.11673

Cite This Page:

Infectious Diseases Society of America. "Antibiotics drastically overprescribed for sore throats, bronchitis." ScienceDaily. ScienceDaily, 4 October 2013. <www.sciencedaily.com/releases/2013/10/131004105256.htm>.
Infectious Diseases Society of America. (2013, October 4). Antibiotics drastically overprescribed for sore throats, bronchitis. ScienceDaily. Retrieved November 24, 2014 from www.sciencedaily.com/releases/2013/10/131004105256.htm
Infectious Diseases Society of America. "Antibiotics drastically overprescribed for sore throats, bronchitis." ScienceDaily. www.sciencedaily.com/releases/2013/10/131004105256.htm (accessed November 24, 2014).

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