ArticleBMJ open2020
Association between night-shift work, sleep quality and health-related quality of life: a cross-sectional study among manufacturing workers in a middle-income setting.
Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed.
- Sleep Quality, Insomnia, Daytime Sleepiness, and OSA Risk Across Occupational Groups: A Comparative Analysis of Professional Drivers and IT Workers.Journal of clinical medicine · 2026Article
- Impact of cold exposure on shift working seafood handlers in Northern Norway: a comparative analysis across work shifts.Journal of occupational medicine and toxicology (London, England) · 2025Article
- Night Shift Work and Poor Sleep Quality Among Female Workers in Southern Brazil: A Repeated Cross-Sectional Study (2017-2022).Nature and science of sleep · 2025Article
- Factors associated with sleep quality among Afghan healthcare workers.Health science reports · 2024Article
- The impact of night shift stress and sleep disturbance on nurses quality of life: case in Palestine Red Crescent and Al-Ahli Hospital.BMC nursing · 2024Article
- Influence of chronotype on sleep quality and menstrual regularity in nurses on monthly shift rotations.Journal of occupational health · 2024Article
- Work conditions and determinants of health status among industrial shift workers: a cross-sectional study.Frontiers in public health · 2024Article
- Article
- Working Around the Clock: The Association between Shift Work, Sleep Health, and Depressive Symptoms among Midlife Adults.Society and mental health · 2023Article
- The Role of Subjective Wellbeing in Mediating Social Trust to the Mental Health of Health Workers.Healthcare (Basel, Switzerland) · 2023Article
- Different levels of circadian (de)synchrony -- where does it hurt?F1000Research · 2022Review
- The relationship between night shift work and breast cancer incidence: A systematic review and meta-analysis of observational studies.Open medicine (Warsaw, Poland) · 2022Article
- The Impact of Shift Work on Occupational Health Indicators among Professionally Active Adults: A Comparative Study.International journal of environmental research and public health · 2021Article
- Examining the Consequences of Night Shifts on Job Satisfaction and Quality of Life (QoL) Among Palestinian Nurses.SAGE open nursingArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesNight-shift work may adversely affect health. This study aimed to determine the impact of night-shift work on health-related quality of life (HRQoL), and to assess whether sleep quality was a mediating factor.
designA cross-sectional study.
setting11 manufacturing factories in Malaysia.
participants177 night-shift workers aged 40-65 years old were compared with 317 non-night-shift workers. PRIMARY AND SECONDARY OUTCOMES: Participants completed a self-administered questionnaire on socio-demographics and lifestyle factors, 12-item Short Form Health Survey V.2 (SF-12v2) and the Pittsburgh Sleep Quality Index (PSQI). The Baron and Kenny's method, Sobel test and multiple mediation model with bootstrapping were applied to determine whether PSQI score or its components mediated the association between night-shift work and HRQoL.
resultsNight-shift work was associated with sleep impairment and HRQoL. Night-shift workers had significantly lower mean scores in all the eight SF-12 domains (p<0.001). Compared with non-night-shift workers, night-shift workers were significantly more likely to report poorer sleep quality, longer sleep latency, shorter sleep duration, sleep disturbances and daytime dysfunction (p<0.001). Mediation analyses showed that PSQI global score mediated the association between night-shift work and HRQoL. 'Subjective sleep quality' (indirect effect=-0.24, SE=0.14 and bias corrected (BC) 95% CI -0.58 to -0.01) and 'sleep disturbances' (indirect effect=-0.79, SE=0.22 and BC 95% CI -1.30 to -0.42) were mediators for the association between night-shift work and physical well-being, whereas 'sleep latency' (indirect effect=-0.51, SE=0.21 and BC 95% CI -1.02 to -0.16) and 'daytime dysfunction' (indirect effect=-1.11, SE=0.32 and BC 95% CI -1.86 to -0.58) were mediators with respect to mental well-being.
conclusionSleep quality partially explains the association between night-shift work and poorer HRQoL. Organisations should treat the sleep quality of night-shift workers as a top priority area for action to improve their employees' overall wellbeing.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.