Results from the linear regression analysis for the question: ‘Do you have any difficulty with your hearing?’.

First, univariable analysis was done. Then each of the independent covariates were added, initially separately and later together. Beta’s reflect the number of decibel change in the PTA0.5–4 with each step up in degree of subjective hearing loss (never, sometimes, regularly, or often). R2 is given as a measure of the goodness of fit of the model.