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Hearing loss and health costs (Tonelli et al., 2024)

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posted on 2024-11-13, 17:50 authored by Marcello Tonelli, Natasha Wiebe, Tiffany Boulton, Maoliosa Donald, Julie Evans, Brenda Hemmelgarn, Tanis Howarth, Meg Lunney, David Nicholas, Kara Schick Makaroff, Helen So, Stephanie Thompson, Scott W. Klarenbach, Braden Manns

Purpose: Hearing loss (HL) is a leading cause of disability worldwide, but its health-related costs have been incompletely studied. Our objective was to examine the association between HL and direct health care costs and identify subgroups in which costs associated with HL are especially high.

Method: This was a retrospective population-based cohort study of adults treated in a universal health care system between April 2008 and March 2019. HL was identified using administrative health data. We estimate health care costs in 2023 Canadian dollars, including costs for hospitalization, provider claims, ambulatory care visits, prescription medications, and long-term care (LTC).

Results: Of 4,424,632 participants, 146,644 (3.3%) had HL. Participants with HL were older (Mdn = 55 years [interquartile range: 43–68] vs. 35 years [24–50]) and had more comorbidities (1 [0–2] vs. 0 [0–1]) at baseline than participants without, whereas the likelihood of female sex, rural residence, and material deprivation were similar between groups with and without HL. Over median follow-up of 11.0 years, total age–sex adjusted annual health costs and each of its component costs were significantly higher in participants with HL compared to those without (annual total costs: $6,871, 95% confidence interval [CI] [$6,778, $6,962] vs. $4,716, 95% CI [$4,729, $4,763]). After full adjustment (a maximum of 29 comorbidities), annual costs remained significantly higher in participants with HL overall and for certain subcomponents (provider claims, ambulatory visits, and medications), whereas adjusted costs of hospitalization and LTC were lower among people with HL. The magnitude of the incremental costs among participants with HL was most pronounced for younger participants, men, or those with less comorbidity. Total projected annual direct health costs for Alberta residents with HL were $1.01 billion in 2023, of which $125 million (95% CI [$116, $135 million]) was attributable to HL specifically.

Conclusions: Compared to those without HL, health costs were markedly higher among participants with HL, partially due to a higher burden of comorbidity. The relatively high population attributable costs of HL suggest that better prevention, recognition, and management of this condition could yield substantial economic benefits.

Supplement Material S1. Annual net costs (in CAD) attributable to hearing loss.

Tonelli, M., Wiebe, N., Boulton, T., Donald, M., Evans, J., Hemmelgarn, B., Howarth, T., Lunney, M., Nicholas, D., Schick Makaroff, K., So, H., Thompson, S., Klarenbach, S. W., & Manns, B. (2024). Associations between hearing loss and health-related costs: A retrospective population-based cohort study. American Journal of Audiology, 33(4), 1306–1315. https://doi.org/10.1044/2024_AJA-24-00130

Funding

The study was supported by M.T.’s David Freeze Chair in Health Services Research at the University of Calgary and his Canadian Institutes for Health Research project grant (506036). The sponsors had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; nor in the decision to submit the manuscript for publication.

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