Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort study

OBJECTIVES: Shift work is associated with metabolic disorders as it disturbs circadian rhythms. However, the potential association of shift work with knee osteoarthritis (KOA), a metabolic-related disease, has not been confirmed. The objective of this study was to quantify the association of shift w...

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Main Authors: Min Zhou, Shijie Yang, Yanjun Guo, Dongming Wang, Weihong Qiu, Bin Wang, Ge Mu, Limin Cao, Zhuang Zhang, Weihong Chen
Format: Article
Language:English
Published: Nordic Association of Occupational Safety and Health (NOROSH) 2020-03-01
Series:Scandinavian Journal of Work, Environment & Health
Subjects:
Online Access: https://www.sjweh.fi/show_abstract.php?abstract_id=3861
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author Min Zhou
Shijie Yang
Yanjun Guo
Dongming Wang
Weihong Qiu
Bin Wang
Ge Mu
Limin Cao
Zhuang Zhang
Weihong Chen
author_facet Min Zhou
Shijie Yang
Yanjun Guo
Dongming Wang
Weihong Qiu
Bin Wang
Ge Mu
Limin Cao
Zhuang Zhang
Weihong Chen
author_sort Min Zhou
collection DOAJ
description OBJECTIVES: Shift work is associated with metabolic disorders as it disturbs circadian rhythms. However, the potential association of shift work with knee osteoarthritis (KOA), a metabolic-related disease, has not been confirmed. The objective of this study was to quantify the association of shift work with the risk of KOA. METHODS: This retrospective cohort study comprising 13 741 retired workers from the Dongfeng Motor Corporation. KOA was defined by knee pain and clinical X-ray radiographs. Occupational history, including job description and shift work, was collected from face-to-face interviews using questionnaires. Cox proportional hazards regression models were used to estimate exposure–response relationships. RESULTS: During the 590 085 person-years of follow-up, a total of 847 cases of KOA (incidence of KOA was 143.5 per 100 000 person-years) were identified. After adjusting for potential confounders, shift work was independently associated with an elevated risk of KOA [hazard ratio (HR) 1.19, 95% confidence interval 1.03–1.36]. Compared with daytime workers, the risk of KOA increased with prolonged periods of shift work; the HR of KOA for participants with 1–9 years, 10–19 years, and ≥20 years shift work were 1.03 (95% CI 0.84–1.26), 1.19 (95% CI 0.98–1.46), and 1.42 (95% CI 1.15–1.76), respectively. The HR for KOA associated with shift work gradually decreased as the period after finishing shift work increased. CONCLUSION: Our results indicated that shift work could be an independent risk factor for KOA.
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spelling doaj.art-0cb1a1d4996f4930ad08f4c21ae2408f2022-12-21T22:12:15ZengNordic Association of Occupational Safety and Health (NOROSH)Scandinavian Journal of Work, Environment & Health0355-31401795-990X2020-03-0146215216010.5271/sjweh.38613861Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort studyMin ZhouShijie YangYanjun GuoDongming WangWeihong QiuBin WangGe MuLimin CaoZhuang ZhangWeihong Chen0School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.OBJECTIVES: Shift work is associated with metabolic disorders as it disturbs circadian rhythms. However, the potential association of shift work with knee osteoarthritis (KOA), a metabolic-related disease, has not been confirmed. The objective of this study was to quantify the association of shift work with the risk of KOA. METHODS: This retrospective cohort study comprising 13 741 retired workers from the Dongfeng Motor Corporation. KOA was defined by knee pain and clinical X-ray radiographs. Occupational history, including job description and shift work, was collected from face-to-face interviews using questionnaires. Cox proportional hazards regression models were used to estimate exposure–response relationships. RESULTS: During the 590 085 person-years of follow-up, a total of 847 cases of KOA (incidence of KOA was 143.5 per 100 000 person-years) were identified. After adjusting for potential confounders, shift work was independently associated with an elevated risk of KOA [hazard ratio (HR) 1.19, 95% confidence interval 1.03–1.36]. Compared with daytime workers, the risk of KOA increased with prolonged periods of shift work; the HR of KOA for participants with 1–9 years, 10–19 years, and ≥20 years shift work were 1.03 (95% CI 0.84–1.26), 1.19 (95% CI 0.98–1.46), and 1.42 (95% CI 1.15–1.76), respectively. The HR for KOA associated with shift work gradually decreased as the period after finishing shift work increased. CONCLUSION: Our results indicated that shift work could be an independent risk factor for KOA. https://www.sjweh.fi/show_abstract.php?abstract_id=3861 metabolic disorderoccupational healthcohort studyworkerchinashift workcircadian rhythmshift workershift rotationknee osteoarthritisretrospective cohort studychinese worker
spellingShingle Min Zhou
Shijie Yang
Yanjun Guo
Dongming Wang
Weihong Qiu
Bin Wang
Ge Mu
Limin Cao
Zhuang Zhang
Weihong Chen
Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort study
Scandinavian Journal of Work, Environment & Health
metabolic disorder
occupational health
cohort study
worker
china
shift work
circadian rhythm
shift worker
shift rotation
knee osteoarthritis
retrospective cohort study
chinese worker
title Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort study
title_full Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort study
title_fullStr Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort study
title_full_unstemmed Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort study
title_short Shift work and the risk of knee osteoarthritis among Chinese workers: a retrospective cohort study
title_sort shift work and the risk of knee osteoarthritis among chinese workers a retrospective cohort study
topic metabolic disorder
occupational health
cohort study
worker
china
shift work
circadian rhythm
shift worker
shift rotation
knee osteoarthritis
retrospective cohort study
chinese worker
url https://www.sjweh.fi/show_abstract.php?abstract_id=3861
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