Effect of side jobs and psychological distress on employee turnover in Japanese employees: A nationwide prospective cohort study

Tatsuhiko Hara; Takahiro Mori; Tomohisa Nagata; Kiminori Odagami; Nuri Purwito Adi; Masako Nagata; Koji Mori; W2S-Ohpm study

doi:10.1097/JOM.0000000000003180

Effect of side jobs and psychological distress on employee turnover in Japanese employees: A nationwide prospective cohort study

J Occup Environ Med. 2024 Jul 2. doi: 10.1097/JOM.0000000000003180. Online ahead of print.

Authors

Tatsuhiko Hara¹, Takahiro Mori¹, Tomohisa Nagata¹, Kiminori Odagami¹, Nuri Purwito Adi, Masako Nagata², Koji Mori¹; W2S-Ohpm study

Affiliations

¹ Department of Occupational Health Practice and Management, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.
² Department of Occupational Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.

PMID: 38955807
DOI: 10.1097/JOM.0000000000003180

Abstract

Objectives: We investigated the impact of engaging in side jobs on turnover and its interaction with psychological distress among Japanese employees.

Methods: A prospective cohort study was conducted using a questionnaire-based survey. We investigated 2783 full-time employees in companies permitting side jobs. Multiple logistic regression analyses were used to examine the relationship between side jobs and turnover, and its relationship stratified by psychological distress.

Results: Employees engaging in side jobs had higher odds ratios (ORs) for turnover after adjusting for covariates, included psychological distress (OR = 1.54, 95% confidence interval: 1.22-1.93). Among those under psychological distress, ORs for turnover were significantly higher (OR = 1.96, 95% confidence interval: 1.39-2.76). Conversely, in employees without distress, no significant difference was observed.

Conclusions: Side job engagement correlates with higher turnover, particularly among employees under psychological distress.