Working years lost in people with epilepsy: a population-based cohort study.

Abstract

Background: We quantify the loss of working years for people with epilepsy compared with the general population and consider variation by aetiology, psychiatric comorbidity, sex and age.

Methods: This population-based cohort study included all individuals aged 18-65 years living in Denmark from 1995 to 2018. Using nationwide registers since 1977, we identified people with epilepsy and obtained information on the main source of income or employment for each year during follow-up from 1995 to 2020. The main outcome was number of working years lost in people with epilepsy compared with the general population of same sex and age, capturing both working life lost due to permanent (death, disability pension, early retirement) and temporary (unemployment, sick leave) factors.

Results: The study comprised 5 466 140 individuals, including 74 980 (1.4%) with epilepsy. In people with epilepsy, the number of working years was on average reduced by 6.6 (95% CI: 6.5 to 6.7) years compared with the general population, largely due to disability pension (4.8 years, 95% CI: 4.7 to 4.9) and premature death (1.6 years, 95% CI: 1.6 to 1.7). Loss of working life was more pronounced in those with a presumed underlying aetiology (9.0 years (95% CI: 8.9 to 9.2) vs 5.4 years (95% CI: 5.2 to 5.5) in those with unknown aetiology), those with psychiatric comorbidity (14.5 years (95% CI: 14.2 to 14.7) vs 5.6 years (95% CI: 5.5 to 5.7) in those without), men (7.2 years (95% CI: 7.1 to 7.3) vs 5.9 (95% CI: 5.8 to 6.0) years in women) and people with early onset of epilepsy (eg, 11.5 years (95% CI: 11.3 to 11.7) among those with onset <20 years).

Conclusions: Epilepsy was associated with significant loss of working life resulting from both disability and premature death.