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Jackson Heart Study: Aggregate cardiovascular disease risk and auditory profiles
Rachael R Baiduc1, Christopher Spankovich2, Thanh-Huyen Vu3
1Department of Speech, Language, and Hearing Sciences University of Colorado Boulder Boulder Colorado USA.
Objectives:
Evaluate the relationship between cardiovascular disease (CVD) risk factors and cochlear function in African Americans.
Methods:
Relationships between hearing loss, cochlear function, and CVD risk factors were assessed in a cross-sectional analysis of 1106 Jackson Heart Study participants. Hearing loss was defined as puretone average (PTA0.5,1,2,4) > 15 dB HL. Distortion product otoacoustic emissions (DPOAEs) were collected for f 2 = 1.0-8.0 kHz. Two amplitude averages were computed: DPOAElow (f 2 ≤ 4 kHz) and DPOAEhigh (f 2 ≥ 6 kHz). Based on major CVD risk factors (diabetes, current smoking, total cholesterol ≥240 mg/dL or treatment, and systolic blood pressure [BP]/diastolic BP ≥ 140/≥90 mmHg or treatment), four risk groups were created: 0, 1, 2, and ≥3 risk factors. Logistic regression estimated the odds of hearing loss and absent/reduced DPOAElow and DPOAEhigh by CVD risk status adjusting for age, sex, education, BMI, vertigo, and noise exposure.
Results:
With multivariable adjustment, diabetes was associated with hearing loss (OR = 1.48 [95% CI: 1.04-2.10]). However, there was not a statistically significant relationship between CVD risk factors (individually or for overall risk) and DPOAEs.
Conclusion:
Diabetes was associated with hearing loss. Neither individual CVD risk factors nor overall risk showed a relationship to cochlear dysfunction.
Level Of Evidence:
2b.
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