Risk factors
By Mayo Clinic staffRisk factors for ear infections include:
- Age. Children between the ages of 6 months and 2 years are more susceptible to ear infections because of the size and shape of the eustachian tubes and because of their poorly developed immune systems.
- Group child care. Children cared for in group settings are more likely to get colds and ear infections than are children who stay home because they're exposed to more infections, such as the common cold.
- Infant feeding. Babies who drink from a bottle, especially while lying down, tend to have more ear infections than do babies who are breast-fed.
- Seasonal factors. Ear infections are most common during the fall and winter when colds and flu are prevalent. People with seasonal allergies may have a greater risk of ear infections during seasonal high pollen counts.
- Poor air quality. Exposure to tobacco smoke or high levels of air pollution can increase the risk of ear infection.
References
- Otitis media (ear infection). National Institute on Deafness and Other Communication Disorders. http://www.nidcd.nih.gov/health/hearing/pages/earinfections.aspx. Accessed Jan. 9, 2013.
- Lalwani AK. Current Diagnosis & Treatment in Otolaryngology -— Head & Neck Surgery. 3rd ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=39. Accessed Jan. 9, 2013.
- Gould JM, et al. Otitis media. Pediatrics in Review. 2010;31:102.
- Ear tubes. American Academy of Otolaryngology — Head and Neck Surgery. http://www.entnet.org/HealthInformation/Ear-Tubes.cfm. Accessed Jan. 9, 2013.
- Benzocaine topical products: Sprays, gels and liquids — risk of methemoglobinemia. U.S. Food and Drug Administration. http://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm250264.htm. Accessed Jan. 9, 2013.
- Hoberman A, et al. Treatment of acute otitis media in children under 2 years of age. New England Journal of Medicine. 2011;364:102.
- Tahtinen PA, et al. A placebo-controlled trial of antimicrobial treatment for acute otitis media. New England Journal of Medicine. 2011;364:116.
- Ear infections. Centers for Disease Control and Prevention. http://www.cdc.gov/getsmart/antibiotic-use/uri/ear-infection.html. Accessed Jan. 9, 2013.
- Coker TR, et al. Diagnosis, microbial epidemiology and antibiotic of acute otitis media in children. Journal of the American Medical Association. 2010;304:2161.
- American Academy of Pediatrics. The diagnosis and management of acute otitis media. Pediatrics. 2013;131:e964. http://pediatrics.aappublications.org/content/early/2013/02/20/peds.2012-3488


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