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The Epidemiology of Deafness
Abraham M Sheffield1, Richard J H Smith2,3,4,5
1Department of Otolaryngology, Head and Neck Surgery, University of Iowa, Iowa City, Iowa 52242.
Cold Spring Harbor Perspectives in Medicine
|September 26, 2018
Summary
Hearing loss is a widespread sensory deficit affecting 5% globally, impacting all ages. This review covers its causes, global disparities, and opportunities for better diagnosis, prevention, and treatment.
Area of Science:
- Epidemiology
- Genetics
- Public Health
Background:
- Hearing loss is the most common sensory deficit globally, affecting approximately 5% of the world's population.
- It impacts individuals across all age groups and incurs substantial personal and societal costs.
- Understanding the diverse causes and global distribution of hearing loss is crucial for public health initiatives.
Purpose of the Study:
- To present comprehensive epidemiological data on global hearing loss.
- To explore the various etiologies of hearing loss, including hereditary, complex (genetic and environmental), and purely environmental factors.
- To highlight global disparities in hearing loss prevalence and discuss avenues for improving its management.
Main Methods:
- Systematic review of epidemiological data on hearing loss.
- Analysis of genetic and environmental factors contributing to hearing loss.
- Comparative analysis of hearing loss rates across different socioeconomic and geographic regions.
Main Results:
- Hearing loss affects a significant portion of the global population, with notable variations worldwide.
- Both genetic predispositions and environmental exposures play critical roles in the development of hearing loss.
- Economically developed countries generally report lower rates of hearing loss compared to developing nations.
Conclusions:
- Hearing loss is a major global health concern with diverse origins.
- Addressing hearing loss requires a multifaceted approach encompassing genetic counseling, environmental risk reduction, and improved healthcare access.
- There is a significant opportunity to enhance the diagnosis, prevention, and treatment strategies for hearing loss globally.
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