Weaker association between hearing loss and non-employment in recent generations: the HUNT cohort study

To examine the prevalence of hearing loss (HL) among employed persons, the association between HL and non-employment, assessing whether this has changed over the last two decades. To identify susceptible groups for HL-related work problems and examine the association between HL and co-worker relations. Cross-sectional analyses of working-age participants (20–66 years). HL was defined as the pure-tone average threshold of 0.5–4 kHz in the better hearing ear: 20–34 dB (mild) or ≥35 dB (disabling). Associations were assessed with logistic regression. Data from two waves of the Trøndelag Health Study (HUNT): HUNT2 1996–1998 (<i>N</i> = 38,603), HUNT4 2017–2019 (<i>N</i> = 19,614). The nationally weighted prevalence of HL among employees was 5.8%. HL was associated with non-employment, more strongly in HUNT2 (odds ratio (OR) 2.2, 95% confidence interval (CI) 2.0–2.4) than HUNT4 (OR 1.9, CI 1.7–2.1). HL was not associated with poorer co-worker relations. The association between HL and non-optimal work performance was stronger among white-collar workers than blue-collar workers. Our study shows that HL is common in the employed population. It also indicates a weakened association between HL and non-employment in recent generations. White-collar workers appear to be more vulnerable to HL-related work problems than blue-collar workers. This paper evaluates employment and work performance among hearing impaired. We show a prevalence of hearing loss (HL) among employed persons of 5.8% and that HL is associated with higher odds of non-employment. Our study indicates that the association between HL and non-employment has weakened in recent generations.