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Shift work occupies precious time for family and social life. The aim of this review was to systematically assess the state of research on the impact of shift work on work-fam-ily conflict. A systematic literature search was conducted in PubMed and EBSCO to identify studies published between 1990 and 2017. In the end, 36 articles met the inclusion criteria and were considered in this review. Shift workers show higher levels of work-family conflict in comparison to workers in regular day schedules. Different shift types and a large variation of shift characteristics have been studied. Results point to a higher work-family conflict especially among night shift workers and those working in a shift schedule, including weekend work. Research testing for causality is missing.

INTRODUCTION: this study has been performed to determine the influence of rotating shift work on physical working capacity of Tunisian nurses and to design recommendations to managers so that they implement effective preventive measures. METHODS: it is a cross-sectional design using a standardized questionnaire and many physical capacity tests on a representative sample of 1181 nurses and nursing assistants from two university hospital centers of the school of Medicine of Monastir located in the Tunisian Sahel. 293 participants have been recruited by stratified random sampling according to gender and departments. Maximum Grip strength, 30s sit-to-stand test, one leg test, Fingertip-to-Floor test, Saltsa test and peak expiratory flow were used to assess physical capacity. Work ability was assessed through the workability index.

Shift handovers contribute to the continuity of the work process and the reliability of information relays between two teams. However, the formalization and organization of these transmission periods are more or less devised in response to each specific work situation. Many studies show that the information content and the way this information is relayed are the result of a collective activity in which experience plays an important role. Our article approaches the relations between experience and shift handovers through three studies from different sectors (hospital, aeronautical, and railroad). In our study, experience refers to the workers’ way of working (especially night work), but also to knowledge relative to the functioning of the work teams. The results show that changes in shift handover activity occurred to cope with the needs of the department and work team and that these changes should be taken into account in efforts to improve shift handover efficiency.

Résumé Objectif L’objectif de cette revue était de déterminer le lien entre le travail de nuit/posté et le cancer du sein. Méthodes Les articles analysés ont été extraits de la base de données PUBMED de 1996 à 2015. Les mots clés utilisés ont été : « breast cancer risk », « night work » et « shift work ». Au total, 25 articles ont été retenus. Résultats Les travailleurs de nuit/postés sont plus à risque de développer un cancer du sein. Le risque relatif est faible, variant selon les méta-analyses entre 1,09 (IC95 % : 1,02–1,20) et 1,48 (IC95 % : 1,36–1,61). Cependant, cette augmentation de risque n’est pas retrouvée par certaines études de cohorte et cas-témoins. La perturbation du rythme circadien, responsable d’une dysrégulation de la synthèse de la mélatonine serait un des mécanismes impliqués dans l’augmentation de ce risque. Le statut hormonal des femmes travaillant de nuit/postées, leur origine géographique, leur mode de vie, ainsi que la carence en vitamine D apparaissent comme d’autres mécanismes potentiellement responsables de l’augmentation du risque de cancer dans cette population professionnelle. Il semble par ailleurs y avoir une relation de type dose–effet avec une majoration du risque avec le nombre d’années de travail nocturne/posté. Conclusion Le travail de nuit/posté est associé à une augmentation modérée du risque de cancer du sein, surtout chez les femmes ayant travaillé plus de 20 ans. Des recommandations concernant le suivi mammaire pour cette population professionnelle pourraient être diffusées. Le bénéfice de la supplémentation en mélatonine reste à évaluer. Objective The aim of this review was to determine the link between night/shift work and breast cancer. Methods The analysed articles were taken from the PUBMED database between 1996 and 2015. The keywords used were “breast cancer risk”, “night work” and “shift work”. In total, 25 articles were selected. Results Night/shift workers are more at risk to develop a breast cancer (relative risk (RR) between 1.09; 95 % CI: 1.02–1.20 and 1.48; 95 % CI: 1.36–1.61 in the meta-analyses). However, this risk is not found by some cohort and case-control studies. The circadian rhythm disruption, responsible of disorderliness of melatonin secretion, could be one of the mechanisms involved in the increase of that risk. Hormonal status of night/shift workers, their geographic origin, their lifestyle and their vitamin D deficiency appear as other mechanisms potentially responsible for increased risk of cancer in this professional population. Moreover, a dose–effect connection may exist, with an increase of the risk with the number of years of night/shift work. Conclusion Night/shift work is associated with a moderate increased risk of breast cancer, especially among women who worked over 20 years. Recommendations concerning the breast monitoring in this population could be diffused. The benefit of melatonin supplementation remains to be assessed. [ABSTRACT FROM AUTHOR]

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Copyright of Obésité is the property of Lavoisier and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Shift changeover periods, when one team relieves another, contribute to achieving the continuity and reliability of shift work. This article considers first-line supervisory staff shift changeovers to be an ongoing activity carried out across successive shifts. The study looks at supervisory activity in the context of a final aircraft assembly line running on a 2x8 discontinuous schedule where changeovers alternate between shift changes where the two teams meet, allowing for oral and written exchanges, and changeovers where they do not meet and only written exchanges are used. The analysis focuses on the activities of writing and using written handovers throughout shift work (before, during, and after shift changeovers). It showed, firstly, that written handovers were prepared throughout the shift no matter what type of shift changeover would follow, but were systematic whenever the upcoming changeover was without meeting, and secondly, that written handovers about what the incoming operator had to do, and what the outgoing operator had done, acted as supports for and records of collective-activity coordination. These results allow us to see shift changeovers as a task that overarches other first-line supervisory tasks and as contributing to work coordination across shifts. Some principles are proposed for adjusting and optimising shift changeovers.

The article presents a study carried out to analyze the shift changeover periods in an organization. The analysis focuses on activities such as the use of written handovers throughout shift work. It mentions that written handovers instructs the incoming operator about his or her job and also provide information to supervisors. It highlights that that written handovers are prepared throughout the shift and is independent of the nature of the shift.

The aim of our study is to compare the effects of three different forms of time organization (traditional 9 to 5 schedule, 6-hour shifts, and 12-hour shifts) inside French prisons, and particularly on prison guard staff. Complementary means of investigation (questionnaire, work observations, statistical treatment) were used to attempt to evaluate the difference between the effect of working hours and of the actual work on the guards’ health. Staff who worked 12-hour shifts had more positive results than staff who worked 6-hour shifts. This was mainly due to the advantages in their private lives. At the same time, some signs of fatigue prevent us from conclusively favouring this type of working rhythm. Beyond the alternation of schedules, the actual work content also has an important impact on the workers’ health.

Abstract: The purpose of the study: The aim of the present study was to investigate relationship between shift work and the cardiovascular risk factors. Methods: A cross-sectional study was included 330 subjects worked in a company of electricity production in the Centre of Tunisia. The collection of data was based on a questionnaire, a clinical exam and biomarkers. Results: A total of 290 workers was participated in our study (128 shift workers and 162 daytime workers). A raised prevalence but not statistically significant of some factors of cardiovascular risks was found in the shift workers: obesity (25.8 % versus 17.9 %), smoking (44.5 % versus 39.5 %), impaired fasting glucose (11.7 % versus 9.9 %), hypertriglyceridemia (28.1 % versus 25.9 %) and hypercholesterolemia (14.8 % versus 12.4 %). Whereas the prevalence of the alcohol consumption (25.8 % versus 16.0 %) was significantly higher in the shift workers (p =0.04). Conclusion: The high prevalence of the cardiovascular risk factors, observed in our shift workers, justify the adoption of measures to protect this category of workers. [Copyright &y& Elsevier]

Introduction: Shift work can cause health problems and sleep disorders and therefore affect mental health. These psycho-affective disorders can, in return, worsen sleep disorders and thus establish a vicious circle. The aims of our study were to assess the frequency of sleep and psycho-affective disorders among paramedical personnel doing shift work and to screen them for obstructive sleep apnoea-hypopnoea syndrome (OSA)., Methods: It was a cross-sectional study carried out among paramedical staff at the University Hospital Center Mongi Slim La Marsa in Tunis. Three questionnaires translated into Arabic (the Berlin questionnaire, the Spiegel questionnaire and the Hospital Anxiety and Depression Scale [HAD]) were presented by the same investigator during the survey., Results: One hundred and fifty-eight paramedics were interviewed (46.2% were nurses, 23.4% were blue-collar workers, 19% were senior technicians and 11.4% were health care aides, midwives and physiotherapists). The average duration of shift work was 10.27 years, the average age was 36.48 years and there was a female prevalence of 70.9%. Sleep disorders were detected in 40.5% of the cases, OSA in 24%, anxiety in 53.2% and depression in 17.1%., Conclusion: Sleep and psycho-affective disorders are frequent among paramedical personnel undertaking shift work in hospitals. Screening consultations in occupational medicine are necessary in order to detect these disorders at an early stage., (Copyright © 2021 SPLF. Published by Elsevier Masson SAS. All rights reserved.)

Este estudo teve como propósitoclassificar o cronótipo dos funcionários da equipe de enfermagem e identificar a presença de stress correlacionado ao cronótipo e turno de trabalho. Foi realizado em hospital privado da cidade de Limeira, estado de São Paulo, com 87 sujeitos, dos diferentes setores e turnos de trabalho. Os instrumentos utilizados foram o Inventário de Sintomas de Stress de Lipp e o Questionário de Indivíduos Matutinos e Vespertinos. Verificou-se que 74,7% dos sujeitos estavam adequados ao turno de trabalho; no entanto, 55,4% apresentavam sintomas de stress, demonstrando correlação estatisticamente significativa (Teste Exato de Fisher p=0,035). Verificou-se também stress nos sujeitos com maior tempo de serviço na instituição, com diferença significativa (Teste Exato de Fisher p=0,003). Concluiu-se que a maioria dos sujeitos estava adequada ao turno de trabalho, de acordo com seu cronótipo, porém mesmo nestes indivíduos o stress foi observado, levando à confirmação de dados obtidos em outras pesquisas quanto ao caráter estressante da profissão.

This study evaluated anxiety and stress in workers under different shift work conditions. The sample comprised 239 workers, with an average age of 42.6, standard deviation = 5.7 years, divided into fixed daytime working (n=52) and different working shifts (n=187). Documentation: Free and informed consent form; ID's; State-Trait Anxiety Inventory; Lipp's Stress Symptom Inventory for Adults. We used the t-test for independent samples, ANOVA, Pearson's correlation and the two-sample Comparison of proportions Test. Results showed that shift workers had higher State-Trait Anxiety scores than fixed daytime workers (t=-4.994; p=0.0001; t=-2.816; p=0.005, respectively). Both samples exhibited stress, but there were no statistically significant differences between the groups (t=-1.052; p=0.294). Shift work schedules caused more situational and dispositional anxiety, but did not significantly increase stress levels when compared to fixed daytime working.

Introduction: While some studies have suggested associations between shift work and obesity, few have been population-based or considered multiple shift schedules. Since obesity is linked with several chronic health conditions, understanding which types of shift work influence obesity is important and additional work with more detailed exposure assessment of shift work is warranted., Methods: Using multivariate polytomous logistic regression, we investigated the associations between shift work (evening/night, rotating and other shift schedules) and overweight and obesity as measured by body mass index cross-sectionally among 1561 men. These men had previously participated as population controls in a prostate cancer case-control study conducted in northeastern Ontario from 1995 to 1999. We obtained information on work history (including shift work), height and weight from the existing self-reported questionnaire data., Results: We observed an association for ever (vs. never) having been employed in rotating shift work for both the overweight (OR [odds ratio] = 1.34; 95% CI [confidence interval]: 1.05-1.73) and obese (OR = 1.57; 95% CI: 1.12-2.21) groups. We also observed nonsignificant associations for ever (vs. never) having been employed in permanent evening/night shifts. In addition, we found a significant trend of increased risk for both overweight and obesity with increasing duration of rotating shift work., Conclusion: Both the positive association between rotating shift work and obesity and the suggested positive association for permanent evening/night shift work in this study are consistent with previous findings. Future population-based research that is able to build on our results while examining additional shift work characteristics will further clarify whether some shift patterns have a greater impact on obesity than others., Competing Interests: The authors have no conflicts of interest to declare.

Objective: The aim of this review was to determine the link between night/shift work and breast cancer., Methods: The analysed articles were taken from the PUBMED database between 1996 and 2015. The keywords used were "breast cancer risk", "night work" and "shift work". In total, 25 articles were selected., Results: Night/shift workers are more at risk to develop a breast cancer (relative risk (RR) between 1.09; 95% CI: 1.02-1.20 and 1.48; 95% CI: 1.36-1.61 in the meta-analyses). However, this risk is not found by some cohort and case-control studies. The circadian rhythm disruption, responsible of disorderliness of melatonin secretion, could be one of the mechanisms involved in the increase of that risk. Hormonal status of night/shift workers, their geographic origin, their lifestyle and their vitamin D deficiency appear as other mechanisms potentially responsible for increased risk of cancer in this professional population. Moreover, a dose-effect connection may exist, with an increase of the risk with the number of years of night/shift work., Conclusion: Night/shift work is associated with a moderate increased risk of breast cancer, especially among women who worked over 20 years. Recommendations concerning the breast monitoring in this population could be diffused. The benefit of melatonin supplementation remains to be assessed., (Copyright © 2015. Published by Elsevier SAS.)