HL512a HL468b
  correlation p coefficients p correlation p coefficients p
Age 0.268 <0.001** NA 0.255 0.001** NA
Sex 0.068 0.378 0.163 0.034*
HOMA-IR 0.038 0.628 0.028 0.713 0.173 0.025* 0.156 0.035*
Metabolic syndrome (N/Y) 0.023 0.764 0.016 0.826 0.054 0.485 0.048 0.527
Elevated Fasting Plasma glucoseĀ  0.199 0.009* 0.145 0.580 0.125 0.105 0.060 0.433
Elevated Fasting Triglyceride level -0.095 0.220 -0.076 0.314 -0.033 0.670 -0.020 0.793
Low HDL level -0.039 0.618 -0.049 0.511 -0.004 0.957 -0.014 0.850
Central Obesity 0.009 0.911 0.014 0.855 0.079 0.306 0.084 0.262
Elevated Blood Pressure 0.018 0.814 -0.040 0.602 0.067 0.389 -0.005 0.950
a: average hearing level at frequency 500, 1000 and 2000 Hz of bilateral ears b: average hearing level at frequency 4000, 6000 and 8000 Hz of bilateral ears Regression coefficients: parameters controlled for age; for non-sex dependent parameters (i.e. HOMA-IR, glucose level, triglyceride level, and blood pressure), sex were also controlled. For the components of metabolic syndrome, binary observations were used: N=0 and Y=1. *: p level <0.05 **: p level <0.01
Table 2: Correlations of HOMA-IR and Metabolic Syndrome with 10-year-shift of hearing levels.