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Domain-Specific Associations Between Physical Activity and Tinnitus in NHANES 2015-2018
Mitra Britton1, Peter A Hosick2
1Department of Communication Sciences and Disorders, Montclair State University, Montclair, NJ 07043, USA.
Background/Objectives:
Tinnitus is a prevalent auditory condition associated with significant psychological burden and limited treatment efficacy. While physical activity confers broad health benefits, its relationship with tinnitus remains understudied. This study examined associations between domain-specific physical activity and tinnitus in a nationally representative sample of U.S. adults.
Methods:
Data from NHANES 2015-2018 were analyzed. The final analytic sample comprised 4301 adults aged 20 years and older. Tinnitus was assessed via the NHANES audiometry questionnaire. Physical activity was categorized as low, moderate, and high (MET-min/week) separately for work-related (WORK) and non-work-related (NW) domains. Survey-weighted multivariable logistic regression models, adjusted for age, sex, race, BMI, poverty-income ratio, sedentary time, smoking, education, noise exposure, hypertension, diabetes, and depressive symptoms, were used to examine associations. Linear trends across ordered physical activity categories were evaluated using ordinal trend analyses.
Results:
The weighted prevalence of tinnitus was 17.3%. High NW physical activity (PA) was associated with significantly lower odds of tinnitus (OR = 0.70, 95% CI: 0.488-0.995, p = 0.0475), while high WORK PA was associated with significantly higher odds (OR = 1.30, 95% CI: 1.06-1.60, p = 0.018). Trend analyses confirmed opposing linear trends across ordered categories: inverse for NW PA (OR = 0.83 per category, p-trend = 0.0406) and positive for WORK PA (OR = 1.14 per category, p-trend = 0.017). Noise exposure and depressive symptoms were independently associated with tinnitus across both models.
Conclusions:
These findings suggest a domain-specific paradox: NW PA was associated with lower odds of tinnitus, whereas WORK PA was associated with higher odds. These results highlight the importance of domain-specific assessment and identify recreational activity as a potential modifiable factor warranting further investigation. Given the cross-sectional design, these associations should not be interpreted as causal.
