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Overcommitment to work as a mediator of the association between effort-reward imbalance and insomnia among shift working nurses

Published online by Cambridge University Press:  13 August 2021

K. Gustavsson  and
A. Wichniak
K. Gustavsson*
Affiliation:
Department Of Clinical Neurophysiology, Sleep Medicine Center, Institute of Psychiatry and Neurology, Warszawa, Poland
A. Wichniak
Affiliation:
Third Department Of Psychiatry, Institute of Psychiatry and Neurology, Warszawa, Poland
*
*Corresponding author.

Abstract

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Introduction

Today, approximately one fifth of employees in the European Union works in the shift system. Insomnia is one of the most common consequences of occupational stress and shift work. Identifying factors contributing to poor sleep quality among shift workers, especially in healthcare professions, is important because insomnia increases the risks for numerous health disorders and impacts work ability.

Objectives

The aim of this research was to investigate to what extend does an inability to withdraw from work influences the link between occupational stress and insomnia among shift workers. We operationalized occupational stress within the Effort-Reward Imbalance Model (ERI). An imbalance between individual effort and reward obtained at work leads to experiencing a stressful work environment.

Methods

153 shift working female nurses completed a short questionnaire about work schedule, the Effort-Reward Imbalance questionnaire with the Overcommitment (OC) scale and the Insomnia Severity Index (ISI). To estimate the mediating effect of OC on the association between ERI and ISI, we conducted a mediation analysis using PROCESS v3.4 macro in SPSS.

Results

The model including ERI and OC accounted for 12.25% of the variance in ISI scores. ERI significantly predicted OC and OC significantly predicted insomnia. The direct effects of ERI on ISI remained significant after controlling for the effects of overcommitment. 35.07% of the effect of ERI on ISI was through OC.

Conclusions

Ability to detach from work-related thoughts during leisure time is crucial for successful recovery from occupational stress. The research is supported by a grant no. 2019/33/N/HS6/02572 from the National Science Center in Poland.

Disclosure

No significant relationships.

Keywords

occupational stressInsomniaovercommitmentShift Work
Type
Abstract
Information
European Psychiatry , Volume 64 , Special Issue S1: Abstracts of the 29th European Congress of Psychiatry , April 2021 , pp. S817 - S818
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of the European Psychiatric Association
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