Contribution of age, gender and occupational group to the higher risk of disability retirement among Finnish public sector employees.

Abstract

Background: The aim of this study was to examine the differences in disability retirement between public and private sector employees and to examine the contribution of age, gender and occupational group to the differences between the sectors.

Methods: Our Finnish register data consisted of about two million non-retired men and women aged 30-62 years. Cox proportional hazard models were used to calculate hazard ratios for any, full and partial disability retirement in the public sector compared with the private sector.

Results: The risk of any disability retirement was higher in the public sector than in the private sector in all occupational groups. The unadjusted hazard ratio ranged from 1.29 (95% CI 1.16-1.44) among teaching professionals to 2.25 (95% CI 1.95-2.58) among skilled agricultural, forestry and fishery workers. Adjustment for age and gender attenuated the differences between the sectors. After adjusting for age, gender and occupational group, the hazard ratio was 1.29 (95% CI 1.27-1.32) for any disability retirement and 2.02 (95% CI 1.96-2.08) for partial disability retirement, but there was no difference between the public sector and private sector employees for full disability retirement.

Conclusions: Adjustment of age and gender attenuated the higher risk of disability retirement in the public sector, while adjustment for occupational group widened the sector differences in any and full disability retirement. The risk of partial disability retirement was higher in all occupational groups in the public sector than in the private sector. For full disability retirement, the differences between the sectors were small or non-existent.