The impact of the COVID-19 pandemic on diagnostic procedures in hearing healthcare in Brazil: time series analysis and regional inequalities COVID-19 and hearing diagnostics in Brazil.

Braz J Otorhinolaryngol · 2026 · PMC13240743 · PMID 42208087

Europe PMC DOI

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a negative trendp < 0.001actually significant

Both regions showed a significant increase in monthly volumes during the pandemic, but a negative trend in the post-pandemic period (p < 0.001 for both).

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a positive trendno p-value reported

Auditory Brainstem response From a national perspective, ABR procedures showed pre-pandemic growth (+16/month), an abrupt decline in March 2020 (−3,627), a positive trend during the pandemic (+188/month), and a post-pandemic decline (−104/month), although average volumes remained higher than pre-pandemic levels (+3,211/month) ( Table 5 , Fig. 4 ).

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