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Occupational and environmental medicine
Protocol
Association between psychosocial factors at work and health outcomes after retirement: a protocol for a systematic review and meta-analysis
  1. Kotaro Imamura1,
  2. Akizumi Tsutsumi2,
  3. Yumi Asai1,
  4. Hideaki Arima1,
  5. Emiko Ando3,
  6. Akiomi Inoue2,
  7. Reiko Inoue2,
  8. Mai Iwanaga4,
  9. Hisashi Eguchi2,
  10. Yasumasa Otsuka5,
  11. Yuka Kobayashi1,
  12. Asuka Sakuraya6,
  13. Natsu Sasaki1,
  14. Kanami Tsuno7,
  15. Ayako Hino8,
  16. Kazuhiro Watanabe1,
  17. Akihito Shimazu9,
  18. Norito Kawakami1
  1. 1Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
  2. 2Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
  3. 3Center for Public Health Sciences, National Cancer Center Japan, Tokyo, Japan
  4. 4Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
  5. 5Faculty of Human Sciences, University of Tsukuba, Tokyo, Japan
  6. 6Department of Public Health, Tokyo Women’s Medical University, Tokyo, Japan
  7. 7School of Health Innovation, Kanagawa University of Human Services, Kawasaki, Japan
  8. 8Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
  9. 9Faculty of Policy Management, Keio University, Fujisawa, Japan
  1. Correspondence to Professor Norito Kawakami; nkawakami{at}m.u-tokyo.ac.jp

Abstract

Introduction The world’s population is rapidly ageing, and health among older people is thus an important issue. Several previous studies have reported an association between adverse psychosocial factors at work before retirement and postretirement health. The objective of this systematic review and meta-analysis is to examine the association between psychosocial factors at work and health outcomes after retirement, based on a synthesis of well-designed prospective studies.

Methods and analysis The participants, exposures, comparisons and outcomes of the studies in this systematic review and meta-analysis are defined as follows: (P) people who have retired from their job, (E) presence of adverse psychosocial factors at work before retirement, (C) absence of adverse psychosocial factors at work before retirement and (O) any physical and mental health outcomes after retirement. Published studies were searched using the following electronic databases: MEDLINE, EMBASE, PsycINFO, PsycARTICLES and Japan Medical Abstracts Society. The included studies will be statistically synthesised in a meta-analysis to estimate pooled coefficients and 95% CIs. The quality of each included study will be assessed using the Risk Of Bias In Non-randomised Studies-of Interventions. For the assessment of meta-bias, publication bias will be assessed by using Egger’s test, as well as visually on a funnel plot. Heterogeneity will be assessed using the χ² test with Cochran’s Q statistic and I2.

Ethics and dissemination Results and findings will be submitted and published in a scientific peer-reviewed journal and will be disseminated broadly to researchers and policy-makers interested in the translatability of scientific evidence into good practices.

PROSPERO registration number CRD42018099043.

  • psychosocial factors at work
  • retirement
  • health status
  • mobility
  • cognitive function

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

https://doi-org.ezproxy.u-pec.fr/10.1136/bmjopen-2019-030773

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    Footnotes

    • Contributors KI, AT, YA, HA, EA, AI, RI, MI, HE, YO, YK, ASa, NS, KT, AH, KW, ASh and NK have made substantial contributions to the conception and design, writing the protocol and revising it critically for important intellectual content, and approving the final version to be published.

    • Funding This study is supported by the Work-related Diseases Clinical Research Grant 2018 (180701) from the Ministry of Health, Labour and Welfare, Japan.

    • Competing interests None declared.

    • Patient consent for publication Not required.

    • Ethics approval Ethical approval will not be needed to apply this review protocol because data will be extracted from the published studies and there will be no concerns about privacy.

    • Provenance and peer review Not commissioned; externally peer reviewed.