The global prevalence of complete hearing loss in 204 countries and territories from 1992 to 2021: a systematic analysis for the global burden of disease study 2021.

For birth cohort, Supplementary Figure S3 shows a decreasing trend in relative risk across successive birth cohorts from 1897–1901 to 2017–2021.

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Congenital birth defects and hearing loss due to meningitis, however, have shown only minor fluctuations over time, with congenital birth defects maintaining a slightly increasing trend, while the prevalence of hearing loss due to meningitis has a substantial decrease.

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