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1.
Appl Ergon ; 106: 103901, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36174329

RESUMO

Designing the working day is not just a matter of changing the shift system. It also requires reflection on the working conditions and a negotiation of solutions with the stakeholders concerned. This article seeks to show that a participatory approach, built using organisational simulation, provides a framework with which to understand the reality of each profession and co-construct suitable solutions. Our action-research took place in a hospital's pneumology ward. The methodology can be broken down into four phases: diagnosis, sharing of the diagnosis, organisational simulation (the focus of this article) and experimenting with solutions. The results show that the approach gave the stakeholders the opportunity to discover and discuss the rules and constraints of actual work, to compare their different views, and to develop a new and shared view of the work situation. The approach allowed them to co-construct relevant solutions and to appropriate the changes necessary for their success.


Assuntos
Jornada de Trabalho em Turnos , Humanos , Pesquisa sobre Serviços de Saúde , Hospitais , Inquéritos e Questionários , Simulação por Computador
2.
Front Public Health ; 10: 973690, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36324454

RESUMO

Introduction: Shift work of clinical faculty members in the COVID-19 pandemic may cause burnout and occupational fatigue and as a result, may reduce the quality of student education and disrupt the treatment of patients, so this study was conducted to evaluate this case. Materials and methods: The statistical population of this cross-sectional research included all clinical faculty members of Ahvaz Jundishapur University of Medical Sciences in southwestern Iran, who experienced a shift work system (night shift from 8 p.m. to 8 a.m.) during the COVID-19 pandemic, and finally, 71 of them participated in it. The sampling method was also available. Two inventories were used to collect data, namely the Maslach Burnout Inventory [MBI-HSS (MP)] and the Swedish Occupational Fatigue Inventory (SOFI-20). Results: The self-reported burnout of faculty members was high (mean ± SD = 98.18 ± 17.18), which was graded into the range of emotional exhaustion (38.01 ± 10.2), range of personal accomplishment, (33.75 ± 6.75), and the range of depersonalization (26.42 ± 3.5), respectively. Perceived occupational fatigue of faculty members was also high (M ± SD = 82.25 ± 34.79), which included the dimensions of lack of motivation (18.69 ± 8.65), drowsiness (17.43 ± 8.7), lack of energy (16.33 ± 7.67), physical discomfort (15.65 ± 8.62), and physical stress (13.51 ± 6.9), respectively. In terms of demographic characteristics, occupational fatigue was significantly more common among women. Discussion and conclusion: The self-reported burnout and occupational fatigue of clinical faculty members due to shift work were reported to be high in this study. Although our knowledge of burnout has advanced in recent years, many gaps in our knowledge still remain. In order for clinical faculty members to properly fulfill their mission to treat patients, educate students, and promote public health, it is necessary to provide all the necessary conditions for their effective activity. Some interventions, such as improving organizational strategies and providing technical solutions, incentives, and occupational facilities, can help reduce or eliminate these problems.


Assuntos
Esgotamento Profissional , COVID-19 , Jornada de Trabalho em Turnos , Humanos , Feminino , Estudos Transversais , COVID-19/epidemiologia , Pandemias , Inquéritos e Questionários , Esgotamento Profissional/epidemiologia , Docentes , Fadiga/epidemiologia
4.
Endocrinol Metab (Seoul) ; 37(5): 781-790, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36327987

RESUMO

BACKGRUOUND: Shift work is associated with obesity and metabolic syndrome. However, this association in the normal-weight population remains unclear. This study aimed to investigate whether shift work is associated with normal-weight obesity (NWO). METHODS: From the nationally representative Korea National Health and Nutrition Examination Survey (KNHANES) dataset (2008 to 2011), 3,800 full-time workers aged ≥19 years with a body mass index (BMI) ≤25 kg/m2 were analysed. We defined NWO as BMI ≤25 kg/m2 and body fat percentage ≥25% in men and ≥37% in women. Working patterns were classified into "daytime," "other than daytime," and "shift." Multivariable logistic regression analysis was performed to evaluate the relationship between shift work and NWO. RESULTS: Shift work was associated with higher odds of NWO than daytime work (adjusted odds ratio [aOR], 1.47; 95% confidence interval [CI], 1.04 to 2.09) and night/evening work (aOR, 1.87; 95% CI, 1.11 to 3.14) after adjustment for type of work, working hours, age, sex, BMI, 25-hydroxyvitamin D levels, homeostatic model assessment for insulin resistance, and other sociodemographic factors. In subgroup analyses, the association between shift work and NWO was more robust in those aged ≥60 years and those working ≥56 hours/week. CONCLUSION: Shift work was associated with NWO in community-dwelling Korean adults, independent of age, sex, BMI, and other covariates.


Assuntos
Vida Independente , Jornada de Trabalho em Turnos , Adulto , Masculino , Feminino , Humanos , Inquéritos Nutricionais , Fatores de Risco , Obesidade/complicações
5.
Front Public Health ; 10: 1014517, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36438211

RESUMO

Objective: To determine the predictive value of the large panel of occupational constraints (OC) on all-cause mortality with a 20-year follow-up, in general population of workers. Methods: In VISAT prospective cohort study, 3,138 workers (1,605 men; 1,533 women) were recruited during the periodic work health visits conducted by occupational physicians. OC (physical, organizational, psychological and employment categories) were collected through self-questionnaires. Exposure durations of each OC were divided by tertile distribution. Cox-regression models were performed to analyze the associations between all-cause mortality and each OC first separately and simultaneously in a single model. Results: The mortality rates were higher among exposed participants to most of OC compared to those unexposed. Being exposed and longer exposure increased the risks of all-cause mortality for exposures to carrying heavy loads, loud noise, working more than 48 h/week, starting its first job before 18 years old although these risks became non-significant after adjustments for cardiovascular risk factors. Shift work and night work confirmed a high risk of mortality whatever the adjustments and notably when the other occupational exposures were taking into account, with, respectively: HR: 1.38 (1.01-1.91) and 1.44 (1.06-1.95). After adjustments being exposed more than 13 years to a work requiring getting-up before 5:00 a.m. and more than 16 years in rotating shift work significantly increased the risk of mortality by one and a half. Conclusion: The links between each OC and all-cause mortality and the role of individual factors were stressed. For night-shift workers, it is urgent to implement preventive strategies at the workplace.


Assuntos
Jornada de Trabalho em Turnos , Masculino , Humanos , Feminino , Adolescente , Estudos Prospectivos , Seguimentos , Estudos de Coortes , Jornada de Trabalho em Turnos/efeitos adversos , Modelos de Riscos Proporcionais
6.
Artigo em Inglês | MEDLINE | ID: mdl-36429761

RESUMO

More knowledge is required to determine the optimal shiftwork schedule to reduce the harmful effects of short restart breaks between shifts. This 5-month intervention study aimed to examine the effectiveness of extended restart breaks from 31 h to 55 h after consecutive night shifts by considering the characteristics of the circadian rhythm to mitigate fatigue and sleep among 30 shift-working nurses. Subjective and objective variables, such as vital exhaustion, distress, hair cortisol, salivary C-reactive protein, and sleep mattress sensor sensation, were repeatedly measured to examine the differences between the intervention and control conditions. Two-way (condition × time) multilevel analyses showed significantly lower levels of vital exhaustion and distress in the intervention condition (p = 0.005 and p = 0.004, respectively). However, the expected benefit of the intervention was not observed in objectively measured variables. These findings suggested that an extended restart break after consecutive night shifts can moderately decrease occupational fatigue and stress.


Assuntos
Jornada de Trabalho em Turnos , Tolerância ao Trabalho Programado , Humanos , Estudos Cross-Over , Sono , Fadiga
7.
Artigo em Inglês | MEDLINE | ID: mdl-36361448

RESUMO

Shift work is a way of organizing rotating schedules throughout the day. This can include 1-3 shifts for the same person on a rotational basis with other workers. Schedules that include night work have been associated with cardiovascular risk, mainly due to circadian misalignment. This systematic review sought to determine whether shift work is a risk factor for increased arterial stiffness. A systematic review of different databases was performed, using the following keywords: work shift, night work, arteriosclerosis, vascular stiffness, arterial stiffness, pulse wave velocity, and their Medical Subject Headings. We selected and analyzed 11 articles regarding pulse wave velocity as an indicator of arterial stiffness. Two studies identified higher levels of arterial stiffness in shift workers compared to day workers, while two studies found the opposite. In addition, four studies found no differences in arterial stiffness between shifts, two studies associated shorter sleep duration with arterial stiffness, and one study observed that physical activity could prevent adverse cardiovascular outcomes in shift workers. The findings are heterogeneous and preclude any robust conclusions. However, the present review points to the need for further studies to investigate arterial stiffness in shift workers, with greater control for confounding factors and longitudinal design.


Assuntos
Jornada de Trabalho em Turnos , Rigidez Vascular , Humanos , Jornada de Trabalho em Turnos/efeitos adversos , Tolerância ao Trabalho Programado , Análise de Onda de Pulso , Ritmo Circadiano , Sono
8.
Am J Alzheimers Dis Other Demen ; 37: 15333175221141535, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36419317

RESUMO

Background: Shift work is associated with impaired sleep quality and disrupted circadian rhythms, but the way in which it increases the risk of dementia remains controversial. We conducted a systematic review and meta-analysis to assess the integrated risk of dementia with shift work. Methods: Searching in PubMed, Cochrane Library, and the Web of Science databases, the relative risks of dementia with shift work were extracted from 12 included studies with 3975 dementia cases from 84 492 participants. The subgroup analysis was stratified by age, gender, sample size, dementia cases, shift schedule, occupation, and follow-up time. Heterogeneity analysis and publication bias analysis were conducted for quality control. Results: The pooled risk ratios (RRs) of dementia with shift work were 1.15 (95%CI = 1.02-1.30). The subgroup analysis found that continuous evening shifts reversibly reduced the risk, but continuous night shifts remarkedly increased the risk of dementia. In addition, a larger cohort and longer follow-up significantly increased the risk of dementia with shift work. Conclusion: Shift work shows mild increases in the risk of dementia using meta-analysis.


Assuntos
Demência , Jornada de Trabalho em Turnos , Humanos , Jornada de Trabalho em Turnos/efeitos adversos , Bases de Dados Factuais , Razão de Chances , Qualidade do Sono , Demência/epidemiologia , Demência/etiologia
9.
Chronobiol Int ; 39(11): 1508-1516, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36210507

RESUMO

Mechanistic studies are needed to understand how rotating shift work perturbs metabolic processing. We collected plasma samples (n = 196) from 49 males, rotating car factory shift workers at the beginning and end of a night-shift (22:00-06:00 h) and day-shift (06:00 h-14:00 h). Samples underwent targeted LC-MS/MS metabolomics and concentrations of 130 metabolites were log2-transformed and pareto-scaled. An elastic net selected the most influential metabolites for linear mixed models examining within-person variation in metabolite levels at night-shift end (06:00 h) compared to day-shift start (06:00 h). Quantitative enrichment analysis explored differentially enriched biological pathways between sample time points. We included 20 metabolites (amino acids, biogenic amines, acylcarnitines, glycerophospholipids) in mixed models. Night-shift was associated with changes in concentrations of arginine (geometric mean ratio [GMR] 2.30, 95%CI 1.25, 4.23), glutamine (GMR 2.22, 95%CI 1.53, 3.24), kynurenine (GMR 3.22, 95%CI 1.05, 9.87), lysoPC18:2 (GMR 1.86, 95%CI 1.11, 3.11), lysoPC20:3 (GMR 2.48, 95%CI 1.05, 5.83), PCaa34:2 (GMR 2.27, 95%CI 1.16, 4.44), and PCae38:5 (GMR 1.66, 95%CI 1.02, 2.68). Tryptophan metabolism, glutathione metabolism, alanine metabolism, glycine and serine metabolism, and urea cycle were pathways differing between shifts. Night shift work was associated with changes in metabolites and the perturbation of metabolic and biochemical pathways related to a variety of health outcomes.


Assuntos
Jornada de Trabalho em Turnos , Masculino , Humanos , Ritmo Circadiano , Cromatografia Líquida , Espectrometria de Massas em Tandem , Modelos Lineares , Tolerância ao Trabalho Programado
10.
Front Public Health ; 10: 1006332, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36249262

RESUMO

Background: Previous studies found that maternal shift work during pregnancy was associated with many reproductive hazards, including small for gestational age, preterm birth, stillbirth, and neurodevelopmental impairment. Some studies also showed that these children are more likely to become overweight in early childhood. However, the association with metabolic factors, such as insulin resistance and dyslipidemia, was less studied. Hence, we aimed to understand better the relationship between maternal shift work during pregnancy and the risk of childhood overweight and metabolic outcomes. Confounding factors were also discussed, including diet, exercise, and demographical factors. Methods: We enrolled pregnant women before delivery in the Taiwan Birth Panel Study (TBPS) II conducted between 2010 and 2012, and followed the children of these participants in 2018. The objective of this study is to investigate the influence of prenatal and postnatal factors on infant and early childhood health. During the follow-up in 2018, we checked children's demographic data, obtained blood specimens, and checked their blood sugar, blood insulin, and lipid profiles. Structured questionnaires were used to evaluate demographic data. Multiple linear and logistic regressions were used to examine the associations between maternal shift work during pregnancy and child overweight, metabolic disorders, such as HOMA-IR, and lipid profiles. Results: In this study, we included 407 mother-children pairs with different work shifts (350 day workers and 57 shift workers), and a sub-population without underweight children was also created (290 day workers and 47 shift workers). Shift work during pregnancy was associated with a higher Homeostasis Model Assessment-Insulin Resistance index (HOMA-IR) and a higher odds ratio for overweight in children born from mothers doing shift work during pregnancy after adjustment. The findings were attenuated when we investigated the effect of shift work before pregnancy. Conclusion: Our study suggested that maternal shift work during pregnancy was associated with child overweight and insulin resistance in early childhood.


Assuntos
Resistência à Insulina , Insulinas , Nascimento Prematuro , Jornada de Trabalho em Turnos , Glicemia , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Lipídeos , Sobrepeso/epidemiologia , Gravidez
11.
Front Public Health ; 10: 965872, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36238237

RESUMO

Objective: This article aims to explore the association between the trends of cortisol rhythm and the regularity of shift work among midwives. Methods: Midwives from six Southeast Chinese hospitals were recruited through cluster sampling in a multi-center cross-sectional study. Urine samples were collected half an hour after waking up, at 11:00, 19:00, and 23:00 on two consecutive days in a longitudinal cohort. The urinary cortisol was assayed by the chemiluminescence method. Results: A total of 86 midwives were included in this study, contributing 688 cortisol samples. The midwives displayed a circadian rhythm in cortisol secretion, with zeniths in the morning and nadirs in the evening. The trend of the first day was repeated on the second day. Although the total working hours per week of the two groups, namely the regular shift group (N = 43) and the irregular shift group (N = 43), were the same, significant main effects of groups (F = 62.569, p < 0.001), time (F = 45.304, p < 0.001), and group-by-time interaction (F = 226.695, p < 0.001) were indicated through linear mixed models. The main effect of day was not statistically significant, with F = 0.105 and p = 0.746. The fluctuation range of cortisol curve in the group with irregular schedules was slightly lower than that in the group with regular schedules. Conclusion: Our results may indicate that cortisol was more inhibited in midwives with irregular shift patterns than those with regular shift patterns. It is necessary to further study the relationship between cortisol rhythm and patterns of midwives' shifts in future so as to lay a foundation for hospital managers to develop a more reasonable scheduling system for midwives with the further purpose to minimize their occupational fatigue and ensure the safety of mothers and infants.


Assuntos
Tocologia , Jornada de Trabalho em Turnos , Ritmo Circadiano , Estudos Transversais , Feminino , Humanos , Hidrocortisona , Lactente , Gravidez , Saliva , Tolerância ao Trabalho Programado
12.
Sci Rep ; 12(1): 15487, 2022 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-36109573

RESUMO

This study explored the feasibility of implementing a meal timing intervention during night shift work. Data were collected via semi-structured interviews. Interviews were coded inductively by two researchers independently, then three major themes were collaboratively developed. Subthemes from each major theme were mapped to the theoretical domains framework and the Capability Opportunity Motivation model of behaviour change. Seventeen night shift workers (rotating or permanent) aged between 25 and 65 years were interviewed. Participants predominately worked as health professionals. The feasibility of a simple meal timing intervention to avoid eating between 1 and 6 am on night shift is largely affected by three major influences (1) physical and emotional burden of shift work which drives food temptations; (2) the workplace context including the meal break environment, social and cultural context at work, and break scheduling; and (3) motivation of the individual. Facilitators to avoiding eating at night were, keeping busy, having co-worker support, management support, education of health benefits and/or belief that the intervention was health promoting. The barriers to avoiding eating at night were the emotional and physical toll of working at night leading to comfort eating and not having rest areas away from food environments. To support night shift workers with changing timing of meals, interventions at work should target both individual and organisational level behaviour change.


Assuntos
Jornada de Trabalho em Turnos , Adulto , Idoso , Humanos , Refeições , Pessoa de Meia-Idade , Motivação , Pesquisa Qualitativa , Local de Trabalho/psicologia
13.
Proc Natl Acad Sci U S A ; 119(38): e2206348119, 2022 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-36095195

RESUMO

Shift workers have a 25 to 40% higher risk of depression and anxiety partly due to a misalignment between the central circadian clock and daily environmental/behavioral cycles that may negatively affect mood and emotional well-being. Hence, evidence-based circadian interventions are required to prevent mood vulnerability in shift work settings. We used a stringently controlled 14-d circadian paradigm to assess mood vulnerability during simulated night work with either daytime and nighttime or daytime-only eating as compared with simulated day work (baseline). Simulated night work with daytime and nighttime eating increased depression-like mood levels by 26.2% (p-value adjusted using False Discovery Rates, pFDR = 0.001; effect-size r = 0.78) and anxiety-like mood levels by 16.1% (pFDR = 0.001; effect-size r = 0.47) compared to baseline, whereas this did not occur with simulated night work in the daytime-only eating group. Importantly, a larger degree of internal circadian misalignment was robustly associated with more depression-like (r = 0.77; P = 0.001) and anxiety-like (r = 0.67; P = 0.002) mood levels during simulated night work. These findings offer a proof-of-concept demonstration of an evidence-based meal timing intervention that may prevent mood vulnerability in shift work settings. Future studies are required to establish if changes in meal timing can prevent mood vulnerability in night workers.


Assuntos
Ansiedade , Relógios Circadianos , Transtorno Depressivo , Refeições , Jornada de Trabalho em Turnos , Tolerância ao Trabalho Programado , Adulto , Ansiedade/prevenção & controle , Ritmo Circadiano , Transtorno Depressivo/prevenção & controle , Feminino , Humanos , Masculino , Refeições/psicologia , Jornada de Trabalho em Turnos/psicologia , Tolerância ao Trabalho Programado/psicologia , Adulto Jovem
14.
Front Immunol ; 13: 939829, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36164341

RESUMO

Objectives: We aimed to examine the effects of circadian and sleep rhythm disruptions on immune biomarkers among hospital healthcare professionals working night shifts and rotating day shifts. Methods: Hospital nurses working either as permanent night shifters (n=95) or as day shifters rotating between morning and afternoon shifts (n=96) kept a daily diary on their sleep and work schedules over a full working week. Blood samples were collected at the beginning and end of the last shift during the week, and participants were categorized into three groups based on work shift: morning shift (39 day shifters sampled at 7:00 and 14:00), afternoon shift (57 day shifters sampled at 14:00 and 21:00), and night shift (95 night shifters sampled at 21:00 and 7:00). Circulating blood counts in immune cells, interleukin-6 and C-reactive protein concentrations as well as total sleep time per 24 hours during work days (TST24w) and free days (TST24f), sleep debt (TST24f - TST24w) and social jet-lag (a behavioral proxy of circadian misalignment) were assessed. Results: Compared with day shifters, night shifters had shorter sleep duration (TST24w=5.4 ± 1.4h), greater sleep debt (3.2 ± 1.4 h) and social jet-lag (6.7 ± 2.4 h). Variations of immune biomarkers concentrations were consistent with the expected diurnal variations among day shifters (i.e., low level in the morning, increase during the day, peak value in the evening). By contrast, in night shifters, blood concentrations of total lymphocytes, T-helper cells, cytotoxic T-cells, memory B-cells and interleukin-6 were lower at 21:00, increased during the night, and reached higher values at 7:00. Multivariate analyses ruled out significant impact of TST24w, sleep debt, and social jet-lag on immune biomarkers concentrations among day shifters. In contrast, among night shifters, multivariate analyses indicated a combined effect of total sleep time (TST24w), sleep debt and social jet-lag for total lymphocytes and T-helper cells but only a social jet-lag effect for interleukin-6 and a single total sleep time effect for neutrophil and B-Cells. Conclusions: Altogether, our results point to intricate response patterns of immune rhythms to circadian misalignment and sleep debt in night shifters. Specifically, these altered pattern expressions of immune cells may increase vulnerability to infections and reduce vaccination efficiency in night workers.


Assuntos
Jornada de Trabalho em Turnos , Proteína C-Reativa , Atenção à Saúde , Hospitais , Humanos , Interleucina-6 , Síndrome do Jet Lag , Privação do Sono , Tolerância ao Trabalho Programado/fisiologia
15.
Front Public Health ; 10: 926057, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36148352

RESUMO

Background: The association between health and working hours is hypothesized to be reciprocal, but few longitudinal studies have examined changes in both health and working hour patterns over time. We examined combined trajectories of self-related health and two working hour patterns (working <35 h/week and working night shifts) and the extent to which these trajectories were predicted by employees' lifestyle and mental health. Methods: Participants of this cohort study with a 8-year follow-up were 5,947 health care shift workers. We linked self-reports of health from three repeated surveys with objective pay-roll based data on working hours. Using group-based multi-trajectory analysis we identified concurrent trajectories for self-rated health and working hour patterns. We examined their associations with baseline lifestyle-related factors (smoking, at-risk alcohol use, obesity, and physical inactivity) and mental health (sleep problems and psychological distress) using multinomial regression analysis. Results: Three combined trajectories of self-rated health and working <35 h/week and four combined trajectories of self-rated health and night work were identified. Unhealthy lifestyle and poor mental health were associated with trajectories of moderate and declining health. Sleep problems were linked with working <35 h/week. Younger age and good mental health were associated with a combined trajectory of good health and continued night shift work. Conclusion: Trajectories of suboptimal and declining health are associated with trajectories of reducing working hours and leaving night work, and are more common in employees with unhealthy lifestyle, sleep problems, and psychological distress.


Assuntos
Jornada de Trabalho em Turnos , Transtornos do Sono-Vigília , Estudos de Coortes , Atenção à Saúde , Seguimentos , Humanos
16.
Mayo Clin Proc ; 97(11): 2016-2027, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35995626

RESUMO

OBJECTIVE: To perform a prospective cohort study to investigate whether night shift work is associated with incident hypertension and whether this association is modified by genetic susceptibility to hypertension because evidence on the association between night shift work and hypertension is insufficient. METHODS: A total of 232,665 participants of UK Biobank who were recruited from 2006 to 2010 and observed to January 31, 2018, were included in this study. A Cox proportional hazards model with covariate adjustment was performed to assess the association between night shift work exposure and hypertension risk. We constructed a polygenic risk score (PRS) for genetic susceptibility to hypertension, which was used to explore whether genetic susceptibility to hypertension modified the effect of night shift work. The robustness of the results was assessed by sensitivity analysis. RESULTS: Night shift workers had a higher hypertension risk than day shift workers, which increased with increasing frequency of night shift work (Ptrend<.001). The association was attenuated but still remained statistically significant in the fully adjusted model. We explored the joint effect of night shift work and genetic susceptibility on hypertension. Permanent night shift workers with higher hypertension PRSs had higher risk of hypertension than day workers with low PRSs. CONCLUSION: Night shift work exposure was associated with increased hypertension risk, which was modified by the genetic risk for hypertension, indicating that there is a joint effect of night shift work and genetic risk on hypertension.


Assuntos
Hipertensão , Jornada de Trabalho em Turnos , Humanos , Jornada de Trabalho em Turnos/efeitos adversos , Tolerância ao Trabalho Programado , Estudos Prospectivos , Predisposição Genética para Doença , Hipertensão/etiologia , Hipertensão/genética , Fatores de Risco
17.
Occup Med (Lond) ; 72(7): 486-491, 2022 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-35976972

RESUMO

BACKGROUND: Shift work is often associated with adverse effects on cardiovascular health of employees. Only a few studies address the strain of shift and day workers on non-working days compared to working days. AIMS: This study aims to determine how the cardiovascular strain of hotel and catering industry (HCI) employees who work alternating shifts differs from those working normal day shifts-on both a working day (WD) and a non-working day (ND). METHODS: The sample consisted of 60 alternating shift (morning and afternoon, mean age: 31.5 ± 8.5 years) and 88 day workers (mean age: 35.3 ± 9.4 years). A 24-h ambulatory measurement of blood pressure (BP) and heart rate (HR) on WD and ND with the time phases DAY, SLEEP, and 24-h TOTAL was used to analyse cardiovascular strain. BP status was assessed by self-measurement (36% hypertensives). RESULTS: The total strain over 24 h was slightly higher on WD than ND (mean BP: 134/79 versus 127/75 mmHg, P = 0.002-0.020; mean HR: 78 versus 75 bpm, P = 0.055). In trend, shift workers had higher systolic BP than day workers during the individual time phases of DAY, SLEEP, and 24-h TOTAL on WD. Known cardiovascular risk factors emerged as critical determinants of cardiovascular strain: older age, male gender, and hypertensive blood pressure status. CONCLUSIONS: The results revealed no clear association between the alternating shift system in HCI and increased cardiovascular strain. The 24-h ambulatory measurement is considered ideal for determining cardiovascular strain in everyday life and under working conditions.


Assuntos
Hipertensão , Jornada de Trabalho em Turnos , Masculino , Humanos , Adulto Jovem , Adulto , Tolerância ao Trabalho Programado/fisiologia , Jornada de Trabalho em Turnos/efeitos adversos , Sono/fisiologia , Pressão Sanguínea/fisiologia , Frequência Cardíaca/fisiologia , Hipertensão/epidemiologia , Hipertensão/etiologia , Ritmo Circadiano/fisiologia
18.
Front Public Health ; 10: 926988, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35910870

RESUMO

Background: Although shift work is the foundation of the provision of 24-h continuous care in hospitals, it can negatively impact mental health in hospital workers such as nurses. Despite the connection between mental health and overall health, little is known about the effect of shift work-related factors on mental health in this population. Objectives: We investigated the effect of scheduling practices, physical and psychological characteristics related to shift work, and personal habits during shift work on depression and anxiety among nurses. Methods: In this multi-center cross-sectional study, 11,061 nurses from 20 hospitals in the Shandong Province of China completed an online survey between December 2020 and February 2022. Multivariate ordered logistic regression analysis was performed to examine shift-related factors associated with depression and anxiety in the study population. Results: The completion rate of all nurses' questionnaires was 83.00% (n = 9,181). Among the 9,181 respondents, 66.20% (n = 6,078) were shift nurses. Depression and anxiety were found in 58.82 and 62.08% of shift nurses, respectively, and these rates were influenced by fatigue during shift work, psychological stress before/during/after night shifts, feeling of being refreshed after resting before/after night shifts, using sleep medication before/after night shifts, physical discomfort during night shifts, busyness during night shifts, food intake during shift work, working > 40 h/week during shift work, and sleep quality before/after night shifts. Conclusions: Depression and anxiety in shift nurses may be addressed by reducing their workload, sources of stress during night shifts, and facilitating rest and relaxation.


Assuntos
Jornada de Trabalho em Turnos , Tolerância ao Trabalho Programado , Ansiedade/epidemiologia , Estudos Transversais , Depressão/epidemiologia , Humanos , Tolerância ao Trabalho Programado/psicologia
19.
Front Public Health ; 10: 936736, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36033744

RESUMO

Poor sleep has significant impacts on both mental and physical well-being. This is especially the case for shift workers who rely on good sleep practices to manage the disruption caused by their working conditions. In recent years there has been a proliferation of sleep-focused mobile phone applications, some of which may be suitable for use by shift workers. There is limited evidence however, on whether these applications are sufficient in managing the sleep needs of the early start shift working population (i.e., those whose work schedules begin pre-dawn). This scoping review aims to identify and discuss peer-reviewed literature on mobile sleep applications used by early start shift workers for sleep-self management. Four databases (Scopus, EBSCOhost, CINAHL and PsycInfo) were searched for relevant literature using a pre-determined search string. The initial search using the term early start shift work returned no papers, however a broadened search on shift work in general found 945 papers for title and abstract screening, of which 21 were deemed eligible for full text screening. Two of these papers met the inclusion criteria for this review. The results highlight, firstly, the paucity of research on the use of mobile phone applications for sleep self-management amongst early start shift workers, and secondly, the need for further research on the effectiveness of mobile applications for sleep self-management amongst shift workers in general. A working definition of early start shift work that can be used to stimulate research in this understudied population of shift workers is also proposed.


Assuntos
Telefone Celular , Aplicativos Móveis , Autogestão , Jornada de Trabalho em Turnos , Medicina do Sono , Sono , Humanos
20.
J Am Heart Assoc ; 11(17): e025936, 2022 09 06.
Artigo em Inglês | MEDLINE | ID: mdl-36036170

RESUMO

Background Although the association between shift work and individual cardiometabolic diseases has been well studied, its role in the progression to cardiometabolic multimorbidity (CMM) remains unclear. In this study, we investigate the association between shift work and the incidence of CMM in patients with hypertension. Methods and Results This study is a population-based and prospective cohort study on 36 939 UK Biobank participants. We used competing risk models to examine the association between shift work and the risk of CMM, which was defined as coexistence of hypertension and diabetes, coronary heart disease, or stroke in our study. We also investigated the association between the frequency and duration of shift work and CMM risks. In addition, we conducted a cross-classification analysis with the combination of frequency and duration of shift work, chronotype and sleep duration as the exposure metrics. During a median follow-up of 11.6 years, a total of 5935 participants developed CMM. We found that usually/always night shift workers were associated with a 16% higher risk of CMM compared with day workers (hazard ratio [HR], 1.16 [95% CI, 1.02-1.31]). We also found that a higher frequency of night shifts (>10/month) was associated with increased risk of CMM (HR, 1.19 [95% CI, 1.06-1.34]) that was more pronounced for >10/month in combination with a morning chronotype or <7 hours or >8 hours of sleep duration (HR, 1.26 [95% CI, 1.02-1.56]; HR, 1.43 [95% CI, 1.19-1.72], respectively). Conclusions We find that night shift work is associated with higher CMM risk in patients with hypertension.


Assuntos
Hipertensão , Jornada de Trabalho em Turnos , Bancos de Espécimes Biológicos , Ritmo Circadiano , Humanos , Hipertensão/epidemiologia , Multimorbidade , Estudos Prospectivos , Fatores de Risco , Jornada de Trabalho em Turnos/efeitos adversos , Reino Unido/epidemiologia , Tolerância ao Trabalho Programado
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