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How Different Stressors Affect Quality of Life: An Application of Multilevel Latent Class Analysis on a Large Sample of Industrial Employees

Authors Parsaei R, Roohafza H, Feizi A, Sadeghi M, Sarrafzadegan N

Received 4 April 2020

Accepted for publication 24 July 2020

Published 20 August 2020 Volume 2020:13 Pages 1261—1270

DOI https://doi.org/10.2147/RMHP.S256800

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Professor Marco Carotenuto


Roqayeh Parsaei,1 Hamidreza Roohafza,2 Awat Feizi,3 Masoumeh Sadeghi,2 Nizal Sarrafzadegan4

1Department of Biostatistics and Epidemiology, School of Health, and Student Research Committee, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; 2Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran; 3Department of Biostatistics and Epidemiology, School of Health, and Cardiac Rehabilitation Research Center, Cardiovascular Research Center, Cardiovascular Research Institute Isfahan University of Medical Sciences, Isfahan, Iran; 4Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran

Correspondence: Awat Feizi
Isfahan University of Medical Sciences, P.O. Box 319, HezarJarib Ave, Isfahan, Iran
Tel +983137923250
Email awat_feiz@hlth.mui.ac.ir

Background: Quality of life (QoL) indicates individual’s perception of the physical, psychological and social aspects of health. The association between QoL and all stressful life events‘ dimensions has not been investigated among industrial employees.
Purpose: The present study aimed to investigate the association between stressful life events and QoL in a large sample of Iranian industrial employees.
Material and Methods: In a cross-sectional study, 3063 manufacturing employees in Isfahan, Iran, were recruited. QoL was measured with the Euro-QoL five dimension questionnaire (EQ-5D). Stressful life events were assessed by an Iranian validated stressful life event questionnaire (SLE). Multilevel latent class regression was employed for classifying participants based on QoL and for determining its association with stressful life events.
Results: Two classes of employees, ie, low (comprised 20% of participants) and high QoL (80%), were identified. From 11 dimensions of stressful life events two major domains, socioeconomic and personal stressor profiles, were identified. Multilevel latent class regression results showed that the higher scores of social (OR: 1.14, 95%CI: 1.12– 1.16) and personal (OR: 2.36, 95%CI: 1.87– 2.98) stressor domains were significantly associated with increased risk of being in the poor QoL class. Among personal and socioeconomic stressors, health concerns and daily life dimensions had higher significant association with poor QoL.
Conclusion: Results of our study indicated that life stressors have negative impacts on QoL of employees. Personal stressors showed higher negative impact than socioeconomic on QoL. Managing the stressors can play an effective role in improving the QoL of employees, their physical and mental health, and indirectly enhances the organizational performance and job productivity.

Keywords: quality of life, stressful life events, multilevel latent class analysis

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