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Prevalence of hearing loss in COVID-19 patients: a systematic review and meta-analysis
Mi Tang1, Jie Wang2, Qinxiu Zhang3
1Chengdu University of Traditional Chinese Medicine School of clinical medicine, Chengdu, Sichuan Province, China.
Background And Objective:
'Hearing loss' has been reported as a clinical atypical symptom in some COVID-19 patients. We searched and collated the existing literature for a systematic review and meta-analysis to assess the prevalence of hearing loss during the COVID-19 epidemic.
Methods:
An exhaustive search of the PubMed, Embase, Web of Science, China National Knowledge Infrastructure and other sources from the inception of the database until 31st December 2022. The Search terms were set to: 'COVID-19', 'SARS-CoV-2', '2019-nCoV', 'hearing impairment', 'hearing loss', 'auditory dysfunction'. The literature data meeting the inclusion criteria were extracted and analyzed. Prevalence was pooled from individual studies using a randomized effects meta-analysis.
Results:
A total of 22 studies were included in the final analysis, involving 14281 patients with COVID-19 infection, of which 482 patients had varying degrees of hearing loss. Our final meta-analysis demonstrated that the prevalence of hearing loss in COVID-19-positive patients was 8.2% (95%CI 5.0-12.1). Subgroup analysis of age showed that the prevalence of middle-aged and older patients aged 50-60 and over 60 years was 20.6% and 14.8%, respectively, which was significantly higher than that of patients aged 30-40 (4.9%) and 40-50 years (6.0%).
Conclusion:
Hearing loss is one of the clinical symptoms of COVID-19 infection, compared with other diseases, it is less likely to attract the attention of clinical experts or researchers. Raising awareness of this disease can not only enable early diagnosis and treatment of hearing loss, and improve the quality of life of patients, but also enhance our vigilance against virus transmission, which has important clinical and practical significance.
