Hearing Loss and Cardiovascular Risk Factors?
Engdahl et al (2015) examined the correlation between multiple cardiovascular risk factors and hearing loss. The sample of patients included 31,547 subjects from the Nord-Trondelag hearing loss study. Pure-tone air conduction thresholds were obtained at 250, 500, 1000, 2000, 3000, 4000, 6000, and 8000 Hz. Subjects ranged in age from 32 to 99 years (mean age = 57 yrs).
After adjusting for age, gender, educational level, income, recurrent ear infections, and noise exposure, the authors report a reduced hearing sensitivity was associated with five factors: (1) smoking, (2) diabetes, (3) lack of exercise, (4) waist circumference, and (5) resting heart rate. However, the combination of these five items represents only some 0.2 to 0.4 percent of the variance. Engdahl et al report that “although many cardiovascular risk factors are associated with hearing loss, the effects are small and of doubtful clinical relevance.”
For More Information, References, and Recommendations
Engdahl B, Aarhus L, Lie A, Tambs K. (2015) Cardiovascular Risk Factors and Hearing Loss – The HUNT Study. International Journal of Audiology, Early Online 1-9. DOI:10.3109/14992027.2015.1090631