O-027 Mental and Behavioral Disorders and Unfitness for Work: A Cross-Sectional Study of 1,327,540 Workers in Occitania, France

Introduction There are little information in literature regarding unfitness for work and underlying related diseases. Mental and behavioral disordes (MBDs) are the most common reason for long-term sickness absence. The objective of the study is to analyze the role played by MBDs in complete unfitness for work. Methods Data collected from September 2019 to August 2020 from 24 of the 27 SSTI (Intercompany occupational health services) in Occitania (France) during health surveillance visits allowed to study the determinants of complete unfitness for work, pathologies included. Results Of the 1,327,540 workers, 8,374 (0.63%) had complete unfitness for work. Workers unfitted were older (mean age= 43.7 +/- 11.2 vs 40.4 +/- 12.4) and had longer working seniority (months) (91.9 +/- 90.5 vs 74.9 +/- 90.4). In all workers, MBDs rank first as a cause of unfitness (n= 2,758, 41.5%) and depressive episode (ICD-10 F32) graded first in females (n= 1,085, 59.7%). In an adjusted model, risk factors of MBDs-related unfitness for work were age (Odds ratio (OR) 1.016, 95% confidence interval (CI) 1.012-1.020) female gender (OR 2.21, 95% CI 2.02-2.42), the presence of a permanent contract (OR 4.88, 95% CI 4.10-5.81) and, compared to the category of blue collars, being white collars (OR 1.15, 95% CI 1.02-1.28). Discussion These results shown how some factors could contribute to the development of complete unfitness for work related to mental disorders. Conclusions In order to protect workers, the impact of mental and behavioral illnesses particularly in certain occupational categories should not be underestimated.