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Objective <p>Seasonal variations in idiopathic sudden sensorineural hearing loss (ISSNHL) have been studied primarily using hospital data, whereas weekday variations have received little attention. The aim of this study was to analyze monthly and weekday variations in the prevalence of ISSNHL in ENT practices in Germany.</p> Methods <p>Data were obtained from a&#xa0;nationwide representative practice database (Disease Analyzer, IQVIA) for the period January 2022 to December 2023. The analysis included 138 ENT practices. The total number of patients (all diagnoses) and those diagnosed with ISSNHL (ICD-10: H91.2) were recorded. The proportion of ISSNHL diagnoses among all diagnoses (prevalence) was calculated and analyzed by month and weekday.</p> Results <p>The monthly prevalence of ISSNHL was highest in January (2022: 0.81%, 2023: 0.75%) and lowest in December (2022: 0.61%, 2023: 0.67%). The highest prevalence occurred on Mondays (2022: 0.83%, 2023: 0.75%), and the lowest on Wednesdays (2022: 0.67%, 2023: 0.67%). Women were more frequently affected than men, with a&#xa0;female-to-male ratio of 1.2:1, and the highest incidence was observed in the 51–60 age group. Fluctuations in the prevalence of ISSNHL were less pronounced than fluctuations in the total number of diagnoses.</p> Conclusion <p>The prevalence of ISSNHL in German ENT practices between 2022 and 2023 varied both by month and weekday. These fluctuations likely reflect organizational factors (e.g., holidays, office hours), while weekday variation was less pronounced than for all ENT diagnoses, consistent with ISSNHL presenting as an acute condition. No clear seasonal pattern of ISSNHL prevalence was observed.</p>

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Seasonal and weekday variations in the prevalence of idiopathic sudden sensorineural hearing loss

  • 期刊论文

  • 发表日期：

    2026年4月27日

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  • David Ulrich Seidel,
  • Simon Bode,
  • Karel Kostev

摘要

Objective

Seasonal variations in idiopathic sudden sensorineural hearing loss (ISSNHL) have been studied primarily using hospital data, whereas weekday variations have received little attention. The aim of this study was to analyze monthly and weekday variations in the prevalence of ISSNHL in ENT practices in Germany.

Methods

Data were obtained from a nationwide representative practice database (Disease Analyzer, IQVIA) for the period January 2022 to December 2023. The analysis included 138 ENT practices. The total number of patients (all diagnoses) and those diagnosed with ISSNHL (ICD-10: H91.2) were recorded. The proportion of ISSNHL diagnoses among all diagnoses (prevalence) was calculated and analyzed by month and weekday.

Results

The monthly prevalence of ISSNHL was highest in January (2022: 0.81%, 2023: 0.75%) and lowest in December (2022: 0.61%, 2023: 0.67%). The highest prevalence occurred on Mondays (2022: 0.83%, 2023: 0.75%), and the lowest on Wednesdays (2022: 0.67%, 2023: 0.67%). Women were more frequently affected than men, with a female-to-male ratio of 1.2:1, and the highest incidence was observed in the 51–60 age group. Fluctuations in the prevalence of ISSNHL were less pronounced than fluctuations in the total number of diagnoses.

Conclusion

The prevalence of ISSNHL in German ENT practices between 2022 and 2023 varied both by month and weekday. These fluctuations likely reflect organizational factors (e.g., holidays, office hours), while weekday variation was less pronounced than for all ENT diagnoses, consistent with ISSNHL presenting as an acute condition. No clear seasonal pattern of ISSNHL prevalence was observed.