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night shift worker

Brice Faraut, Thomas Andrillon, Marie-Françoise Vecchierini, Damien Leger
Sleep specialists have proposed measures to counteract the negative short- and long-term consequences of sleep debt, and some have suggested the nap as a potential and powerful "public health tool". Here, we address this countermeasure aspect of napping viewed as an action against sleep deprivation rather than an action associated with poor health. We review the physiological functions that have been associated positively with napping in both public health and clinical settings (sleep-related accidents, work and school, and cardiovascular risk) and in laboratory-based studies with potential public health issues (cognitive performance, stress, immune function and pain sensitivity)...
September 13, 2016: Sleep Medicine Reviews
Ane Andrade Santa Cecília Silva, Tássia do Vale Cardoso Lopes, Kely Raspante Teixeira, Jordane Amaral Mendes, Matheus Eduardo de Souza Borba, Maria Carliana Mota, Jim Waterhouse, Cibele Aparecida Crispim
Subjective responses to meals are altered by shortened sleep time and anxiety state, but this effect has been poorly studied in shift workers - who act as a typical model concerning sleep restriction and present high levels of anxiety. The objective of this study was to compare subjective perceptions of meals and the levels of anxiety in the same subjects after working night shifts and after taking a nocturnal sleep, and to investigate associations between the responses to meals and the levels of anxiety under these two conditions...
October 6, 2016: Appetite
Paola Ferri, Matteo Guadi, Luigi Marcheselli, Sara Balduzzi, Daniela Magnani, Rosaria Di Lorenzo
BACKGROUND: Shift work is considered necessary to ensure continuity of care in hospitals and residential facilities. In particular, the night shift is one of the most frequent reasons for the disruption of circadian rhythms, causing significant alterations of sleep and biological functions that can affect physical and psychological well-being and negatively impact work performance. OBJECTIVES: The aim of this study was to highlight if shift work with nights, as compared with day work only, is associated with risk factors predisposing nurses to poorer health conditions and lower job satisfaction...
2016: Risk Management and Healthcare Policy
Mikko Härmä, Aki Koskinen, Annina Ropponen, Sampsa Puttonen, Kati Karhula, Jussi Vahtera, Mika Kivimäki
OBJECTIVE: To evaluate the validity of widely used questionnaire items on work schedule using objective registry data as reference. METHOD: A cohort study of hospital employees who responded to a self-administered questionnaire on work schedule in 2008, 2012 and 2014 and were linked to individual-level pay-roll-based records on work shifts. For predictive validity, leisure-time fatigue was assessed. RESULTS: According to the survey data in 2014 (n=8896), 55% of the day workers had at least 1 year of earlier shift work experience...
September 27, 2016: Occupational and Environmental Medicine
Alfred Michael Dockery, Jianghong Li, Garth Kendall
Extensive evidence has shown that working nonstandard hours, such as evening or night shifts, impacts negatively on workers' own health, and a growing literature suggests such impacts extend to the health of workers' children. Using matched parent and child data from a large Australian panel survey this paper explores the effects of parental work schedules on the mental and physical health of adolescents aged 15-20 in sole-parent families. Random-effects models indicate adolescents have marginally worse emotional and physical health when their parent works nonstandard hours, based on SF-36 component summary scores, associated primarily with emotional or physical role limitations...
November 2016: Social Science & Medicine
Seong-Woo Kim, Eun-Chul Jang, Soon-Chan Kwon, Wook Han, Min-Sung Kang, Young-Hyeon Nam, Yong-Jin Lee
BACKGROUND: This study aimed to determine the association between shift work and inflammatory markers, which are independent risk factors of cardiovascular diseases, in male manual workers at a display manufacturing company. METHODS: This study was conducted between June 1 and July 31, 2015 on 244 male manual workers aged 20-39 years old at a display manufacturing company and investigated age, marital status, education level, alcohol consumption habit, smoking habit, regular exercise habit, sleep duration, sleep debt, sleep insufficiency, past medical history, current and past shift work experience, duration of shift work, and weekly work hours through face-to-face interviews using structured questionnaires and performed blood tests...
2016: Annals of Occupational and Environmental Medicine
Zsofia Kiss, Paramita M Ghosh
The androgen receptor (AR) plays a key role in the development and progression of prostate cancer (CaP). Since the mid-1990s, reports in the literature pointed out higher incidences of CaP in some select groups, such as airline pilots and night shift workers in comparison to those working regular hours. The common finding in these 'high-risk' groups was that they all experienced a deregulation of the body's internal circadian rhythm. Here we discuss how the circadian rhythm affects androgen levels and modulates CaP development and progression...
September 22, 2016: Endocrine-related Cancer
S Gustavsen, H B Søndergaard, D B Oturai, B Laursen, J H Laursen, M Magyari, H Ullum, M H Larsen, F Sellebjerg, A B Oturai
BACKGROUND: Epidemiological studies suggest an important role for environmental factors in developing multiple sclerosis (MS). Furthermore several studies have indicated that the effect of environmental factors may be especially pronounced in adolescents. Recently only one study investigated and found that shift work at young age is associated with an increased risk of developing MS. In this study we focused on the effect of shift work in the vulnerable period between 15-19 years. OBJECTIVE: The aim of this study was to investigate the association between shift work at young age and the risk of developing MS...
September 2016: Multiple Sclerosis and related Disorders
Teresa Cotrim, José Carvalhais, Catarina Neto, Júlia Teles, Paulo Noriega, Francisco Rebelo
In the last two decades the control of the Portuguese railway network has become much more centralized in three centres, there integrating the functions of route flow management, electrical control and signalling. This study aimed to investigate the influence of work and individual determinants in sleepiness among railway control workers, namely socio-demographic factors, work ability, psychosocial factors, shiftwork characteristics, fatigue perception, and sleep. Sleepiness by shift was associated with quality of sleep, job satisfaction, fatigue perception, quantitative demands, and age...
January 2017: Applied Ergonomics
Jillian Dorrian, Crystal Grant, Siobhan Banks
PURPOSE: Residential support workers (RSW) engage in overnight "sleepover" shifts as well as more traditional "standup" night shifts. While research has investigated the consequences of night and on-call work for sleep in other industries, the sleep of RSW has not been evaluated. METHOD: In a single-provider case study, six employees completed the Pittsburgh Sleep Quality Index (PSQI), the Depression Anxiety Stress Scale (DASS), a 2-week sleep diary, and a 30 min interview, and four also completed the Shirom-Melamed Burnout Measure (SMBM)...
January 2017: Applied Ergonomics
Gerben Hulsegge, Jolanda Ma Boer, Allard J van der Beek, Wm Monique Verschuren, Ivonne Sluijs, Roel Vermeulen, Karin I Proper
OBJECTIVE: Shift work is associated with adverse health outcomes, and an unhealthy diet may be a contributing factor. We compared diet quantity and quality between day and shift workers, and studied exposure-response relationships regarding frequency of night shifts and years of shift work. METHODS: Cross-sectional general population data from the European Prospective Investigation into Cancer and Nutrition-Netherlands (EPIC-NL) cohort was used. Dietary intake was assessed in 1993-1997 among adults aged 20-70 years using a food frequency questionnaire...
September 15, 2016: Scandinavian Journal of Work, Environment & Health
Khosro Sadeghniiat-Haghighi, Hamid Bahrami, Omid Aminian, Alipasha Meysami, Ahmad Khajeh-Mehrizi
BACKGROUND: Disturbed sleep is common in shift work. It is hypothesized that administration of exogenous melatonin could reduce the sleep latency and improve the sleep quality. OBJECTIVE: To evaluate the efficacy of 3 mg melatonin taken 30 min before night time sleep on shift workers with difficulty falling asleep. METHODS: Pittsburgh Sleep Quality Index (PSQI) and Insomnia Severity Index (ISI) were applied to find out shift workers with difficulty falling asleep...
September 7, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
Lee C Yong, Jia Li, Geoffrey M Calvert
OBJECTIVE: To estimate the prevalence of a comprehensive set of self-reported sleep problems by job characteristics, including shiftwork status, among a representative sample of US workers. METHODS: Data for 6338 workers aged ≥18 years were obtained from the National Health and Nutrition Examination Survey. Short sleep duration was defined as <7 hours per weekday/workday. Sleep quality was categorised as good, moderate and poor based on the frequency of 6 sleep-related symptoms...
September 8, 2016: Occupational and Environmental Medicine
Koh Mizuno, Akiko Matsumoto, Tatsuya Aiba, Takashi Abe, Hiroshi Ohshima, Masaya Takahashi, Yuichi Inoue
BACKGROUND: Flight controllers of the International Space Station (ISS) are engaged in shift work to provide 24-h coverage to support ISS systems. The purpose of this study was to investigate the prevalence and associated factors of shift work sleep disorder (SWSD) among Japanese ISS flight controllers. METHODS: A questionnaire study was conducted using the Standard Shiftwork Index to evaluate sleep-related problems and possible associated variables. Among 52 respondents out of 73 flight controllers, 30 subjects were identified as night shift workers who worked 3 or more night shifts per month...
2016: Journal of Physiological Anthropology
Markus Canazei, Wilfried Pohl, Harald R Bliem, Elisabeth M Weiss
Short-wavelength and short-wavelength-enhanced light have a strong impact on night-time working performance, subjective feelings of alertness and circadian physiology. In the present study, we investigated acute effects of white light sources with varied reduced portions of short wavelengths on cognitive and visual performance, mood and cardiac output.Thirty-one healthy subjects were investigated in a balanced cross-over design under three light spectra in a simulated night-shift paradigm without circadian adaptation...
August 31, 2016: Chronobiology International
Tracy E Slanger, J Valérie Gross, Andreas Pinger, Peter Morfeld, Miriam Bellinger, Anna-Lena Duhme, Rosalinde Amancay Reichardt Ortega, Giovanni Costa, Tim R Driscoll, Russell G Foster, Lin Fritschi, Mikael Sallinen, Juha Liira, Thomas C Erren
BACKGROUND: Shift work is often associated with sleepiness and sleep disorders. Person-directed, non-pharmacological interventions may positively influence the impact of shift work on sleep, thereby improving workers' well-being, safety, and health. OBJECTIVES: To assess the effects of person-directed, non-pharmacological interventions for reducing sleepiness at work and improving the length and quality of sleep between shifts for shift workers. SEARCH METHODS: We searched CENTRAL, MEDLINE Ovid, Embase, Web of Knowledge, ProQuest, PsycINFO, OpenGrey, and OSH-UPDATE from inception to August 2015...
2016: Cochrane Database of Systematic Reviews
Josep Amílcar Albert-Sabater, José Miguel Martínez, Valborg Baste, Bente E Moen, Elena Ronda-Perez
AIM AND OBJECTIVE: To assess the association between work in a rotating shift schedule and menstruation characteristics among nurse staff in a prospective study. BACKGROUND: Rotating shifts have been linked to alterations in the reproductive cycle. In the case of menstrual alterations, the conclusions are not clear. DESIGN: Prospective epidemiological study with follow-up over four months. METHOD: All the female nurse staff (<40 years) in a hospital were interviewed, collecting sociodemographic and employment information...
November 2016: Journal of Clinical Nursing
Eman Alefishat, Rana Abu Farha
OBJECTIVES: To assess the association between night work and 25-hydroxy vitamin D (25OHD) levels, and to evaluate effect of potential risk factors on 25OHD levels. MATERIAL AND METHODS: A total of 140 adult Jordanian employees were recruited. Demographic, lifestyle and working patterns data were documented through a well-structured questionnaire. Vitamin D status was assessed by measuring circulating concentrations of 25OHD. RESULTS: Mean 25OHD level was 23...
2016: International Journal of Occupational Medicine and Environmental Health
Kai Xing, Xue Zhang, Mingli Jiao, Yu Cui, Yan Lu, Jinghua Liu, Jingjing Zhang, Yuchong Zhao, Yanming Zhao, Ye Li, Libo Liang, Zheng Kang, Qunhong Wu, Mei Yin
Workplace violence in Chinese township hospitals is a major public health problem. We identified the risk factors of healthcare workers' worry about experiencing workplace violence in 90 Chinese township hospitals and determined specific measures for differing stages of violence (based on crisis management theory). Participants were 440 general practitioners and 398 general nurses from Heilongjiang Province, China (response rate 84.6%). One hundred and six (12.6%) respondents reported being physically attacked in their workplace in the previous 12 months...
2016: International Journal of Environmental Research and Public Health
Teresa Gómez-García, María Ruzafa-Martínez, Carmen Fuentelsaz-Gallego, Juan Antonio Madrid, Maria Angeles Rol, María José Martínez-Madrid, Teresa Moreno-Casbas
OBJECTIVE: The main objective of this study was to determine the relationship between the characteristics of nurses' work environments in hospitals in the Spanish National Health System (SNHS) with nurse reported quality of care, and how care was provided by using different shifts schemes. The study also examined the relationship between job satisfaction, burnout, sleep quality and daytime drowsiness of nurses and shift work. METHODS: This was a multicentre, observational, descriptive, cross-sectional study, centred on a self-administered questionnaire...
2016: BMJ Open
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