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Prevalence of Hearing LossVIDEO 1B

Prevalence of Hearing Loss –Worldwide

ó 600 million persons (10% of population) worldwide with at least mild loss

ó 250 million persons with at least moderate loss

ó 900 million persons by 2025

ó More than 2/3 of the total reside in developing countries

Traynor, Bob, ed. "Incidence of Hearing Loss Worldwide." Hearinghealthmatters.org. N.p., 06/04/2011. Web. 1 Sep 2012. <http://hearinghealthmatters.org/hearinginternational/2011/incidence-of-hearing-loss-around-the-world/>.

Prevalence of Hearing Loss –Developing Countries

ó 100+ countries considered to be “developing”

ó 80% of world population

ó Records are scarce, but occurrence appears to be “huge”

ó Estimated 50% of losses could be prevented if healthcare were available

ó >6 in 1,000 infants

ó Cultural influences affect diagnosis and treatment

Traynor, Bob, ed. "Incidence of Hearing Loss Worldwide." Hearinghealthmatters.org. N.p., 06/04/2011. Web. 1 Sep 2012. <http://hearinghealthmatters.org/hearinginternational/2011/incidence-of-hearing-loss-around-the-world/>.

Prevalence of Hearing Loss –Developed Countries

ó Fairly similar prevalence among developed countriesó In US, 31.5 million personó Number of persons affected more than doubled in past 30

yearsó 30% of persons over age 60ó 14.6% of Baby Boomers (age 41 – 59)ó 7.4% of Gen Xers (age 29 – 40)ó 1.4 million children under age 18ó 3 in 1,000 infants

Traynor, Bob, ed. "Incidence of Hearing Loss Worldwide." Hearinghealthmatters.org. N.p., 06/04/2011. Web. 1 Sep 2012. <http://hearinghealthmatters.org/hearinginternational/2011/incidence-of-hearing-loss-around-the-world/>.

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Additional Prevalence Data in US Additional Prevalence Data in USó 50 million people with tinnitus

ó 30 million people regularly exposed to hazardous noise levels

ó 10 million people with permanent noise-induced hearing loss

ó 2 million people classified as deaf

ó 15% of school-age children fail school screening

ó 90% of children with at least 1 ear infection before age 6

Martin, Frederick. Introduction to Audiology. 11. Upper Saddle, NJ: Pearson Education, 2012.

Prevalence of Hearing Lossin Children

ó 3 in 1000 babies per year in the US born with permanent hearing loss

ó 12,000 babies per year - one of the most common birth defects

ó 92% of children with hearing loss have 2 hearing parents; 96% have at least 1 hearing parent

ó High Risk Registry ó 50% have no risk factors

ó Parents suspected before MD

ó Average age of identification prior to NBHS – 2 ½ to 3 years of age

ó Newborn Hearing Screeningó 92% to 95% of all babies screened

ó 54% receive appropriate follow up; 46% lost to system

"Facts about Pediatric Hearing Loss." www.asha.org. N.p., n.d. Web. 3 Sep 2012. <http://www.asha.org/aud/Facts-about-Pediatric-Hearing-Loss/>.