Table 3.
Regression models of cognitive scores per year of age or 25 dB of hearing loss for cognitive tests associated with both age and hearing loss
| Age (per year) | Hearing loss (per 25 dB) | Δ Age (years) equivalent to 25 dB of hearing loss | |||
|---|---|---|---|---|---|
| βa (95% CI) | P | βb (95% CI) | P | ||
| Stroop Mixed | −0.33 (−0.48 – −0.18) | <.001 | −2.27 (−4.14 – −0.40) | .02 | 6.8 |
| Trail Making | |||||
| Part A, speed | −0.00027 (−0.00040 – −0.00015) | <.001 | −0.0016 (−0.0032 – 2.35×10−6) | .05 | 5.8 |
| Part B, speed | −0.00011 (−0.00018 – −0.000044) | .001 | −.00074 (−0.0015 – 2.74×10−6) | .05 | 6.7 |
a
β-coefficient represents the expected difference in cognitive scores associated with a 1 year increase in age. Negative β’s indicate poorer cognitive function with increasing age.
b
β-coefficient represents the expected difference in cognitive scores associated with a 25 db increase in hearing loss (analogous to shifting from normal hearing to mild hearing loss). Negative β’s indicate poorer cognitive function with increasing hearing loss.
a, b
All models adjusted for age, sex, race, education, diabetes, smoking, and hypertension