To investigate the association between dietary intake of omega-3 and omega-6 polyunsaturated fatty acids and the odds of high-frequency hearing loss in US adults aged 30 to 69 years.
Key Findings:
Higher intake of omega-3 and omega-6 fatty acids associated with lower odds of high-frequency hearing loss.
Each 1-unit increase in omega-3 intake linked to about 7% lower odds of hearing loss.
Each 10-unit increase in omega-6 intake linked to about 10% lower odds of hearing loss.
Lower odds observed starting from the third quintile for omega-3 and fourth quintile for omega-6 intake.
No association found between the ratio of omega-6 to omega-3 intake and hearing loss.
Interpretation:
Higher dietary intake of polyunsaturated fatty acids may reduce the likelihood of high-frequency hearing loss in adults.
Limitations:
Cross-sectional design limits causal inference.
Potential residual confounding.
Possible recall bias in dietary reporting.
Conclusion:
The study suggests a beneficial role of polyunsaturated fatty acids in hearing health among US adults.
