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"Shift Work" OR "Rotating Shifts"

So-Hyun Moon, Bum-Joon Lee, Seong-Jin Kim, Hwan-Cheol Kim
BACKGROUND: Night shift work has well-known adverse effects on health. However, few studies have investigated the relationship between thyroid diseases and night shift work. This study aimed to examine night shift workers and their changes in thyroid stimulating hormones (TSH) levels over time. METHODS: Medical check-up data (2011-2015) were obtained from 967 female workers at a university hospital in Incheon, Korea. Data regarding TSH levels were extracted from the records, and 2015 was used as a reference point to determine night shift work status...
2016: Annals of Occupational and Environmental Medicine
Ruth C Travis, Angela Balkwill, Georgina K Fensom, Paul N Appleby, Gillian K Reeves, Xiao-Si Wang, Andrew W Roddam, Toral Gathani, Richard Peto, Jane Green, Timothy J Key, Valerie Beral
BACKGROUND: It has been proposed that night shift work could increase breast cancer incidence. A 2007 World Health Organization review concluded, mainly from animal evidence, that shift work involving circadian disruption is probably carcinogenic to humans. We therefore aimed to generate prospective epidemiological evidence on night shift work and breast cancer incidence. METHODS: Overall, 522 246 Million Women Study, 22 559 EPIC-Oxford, and 251 045 UK Biobank participants answered questions on shift work and were followed for incident cancer...
December 2016: Journal of the National Cancer Institute
Sonja Sulkava, Hanna M Ollila, Jukka Alasaari, Sampsa Puttonen, Mikko Härmä, Katriina Viitasalo, Alexandra Lahtinen, Jaana Lindström, Auli Toivola, Raimo Sulkava, Mika Kivimäki, Jussi Vahtera, Timo Partonen, Kaisa Silander, Tarja Porkka-Heiskanen, Tiina Paunio
STUDY OBJECTIVES: Tolerance to shift work varies; only some shift workers suffer from disturbed sleep, fatigue, and job-related exhaustion. Our aim was to explore molecular genetic risk factors for intolerance to shift work. METHODS: We assessed intolerance to shift work with job-related exhaustion symptoms in shift workers using the emotional exhaustion subscale of the Maslach Burnout Inventory - General Survey, and carried out a genome-wide association study (GWAS) using Illumina's Human610-Quad BeadChip (n = 176)...
October 10, 2016: Sleep
Charlotte C Gupta, Jill Dorrian, Crystal L Grant, Maja Pajcin, Alison M Coates, David J Kennaway, Gary A Wittert, Leonie K Heilbronn, Chris B Della Vedova, Siobhan Banks
Shiftworkers have impaired performance when driving at night and they also alter their eating patterns during nightshifts. However, it is unknown whether driving at night is influenced by the timing of eating. This study aims to explore the effects of timing of eating on simulated driving performance across four simulated nightshifts. Healthy, non-shiftworking males aged 18-35 years (n = 10) were allocated to either an eating at night (n = 5) or no eating at night (n = 5) condition. During the simulated nightshifts at 1730, 2030 and 0300 h, participants performed a 40-min driving simulation, 3-min Psychomotor Vigilance Task (PVT-B), and recorded their ratings of sleepiness on a subjective scale...
October 13, 2016: Chronobiology International
Barbra A Dickerman, Sarah C Markt, Markku Koskenvuo, Christer Hublin, Eero Pukkala, Lorelei A Mucci, Jaakko Kaprio
PURPOSE: Sleep disruption and shift work have been associated with cancer risk, but epidemiologic evidence for prostate cancer remains limited. We aimed to prospectively investigate the association between midlife sleep- and circadian-related parameters and later prostate cancer risk and mortality in a population-based cohort of Finnish twins. METHODS: Data were drawn from the Older Finnish Twin Cohort and included 11,370 twins followed from 1981 to 2012. Over the study period, 602 incident cases of prostate cancer and 110 deaths from prostate cancer occurred...
October 12, 2016: Cancer Causes & Control: CCC
Holly Blake, Natalia Stanulewicz, Francesca McGill
AIMS: To investigate physical activity levels of nursing and medicine students; examine predictors of physical activity level; and examine the most influential benefits and barriers to exercise. BACKGROUND: Healthcare professionals have low levels of physical activity, which increases their health risk and may influence their health promotion practices with patients. DESIGN: We surveyed 361 nursing (n=193) and medicine (n=168) students studying at a UK medical school...
October 12, 2016: Journal of Advanced Nursing
Raymond van Ee, Sander Van de Cruys, Luc J M Schlangen, Björn N S Vlaskamp
A daily rhythm that is not in synchrony with the environmental light-dark cycle (as in jetlag and shift work) is known to affect mood and health through an as yet unresolved neural mechanism. Here, we combine Bayesian probabilistic 'cue-conflict' theory with known physiology of the biological clock of the brain, entailing the insight that, for a functional pacemaker, it is sufficient to have two interacting units (reflecting environmental and internal time-of-day cues), without the need for an extra homuncular directing unit...
October 5, 2016: Trends in Neurosciences
Lonnele J Ball, Oxana Palesh, Lance J Kriegsfeld
Most physiological processes in the brain and body exhibit daily (circadian) rhythms coordinated by an endogenous master clock located in the suprachiasmatic nucleus of the hypothalamus that are essential for normal health and functioning. Exposure to sunlight during the day and darkness at night optimally entrains biological rhythms to promote homeostasis and human health. Unfortunately, a major consequence of the modern lifestyle is increased exposure to sun-free environments during the day and artificial lighting at night...
October 2016: Endocrine Reviews
Rashid Haidarimoghadam, Reza Kazemi, Majid Motamedzadeh, Rostam Golmohamadi, Alireza Soltanian, Mohamad Reza Zoghipaydar
INTRODUCTION: The aim of this study was to evaluate the effects of consecutive night shifts (CNS) and shift length (SL) on cognitive performance and sleepiness. MATERIALS AND METHODS: This study evaluated the sleepiness and performance of 30 control rooms operators (CROs) working in a 7 nights, 7 days, 7 days off (7N7D7O) and 30 CROs working in a 4 nights, 7 days, 3 nights, 7 days off (4N7D3N7O) shift pattern in a petrochemical complex in the last night shift before swinging into the day shift...
October 4, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
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
Y M Jaradat, M B Nielsen, P Kristensen, R Bast-Pettersen
BACKGROUND: Associations between shift work (SW) schedules, mental distress and job satisfaction have never been completely described. AIMS: To examine gender-specific associations of SW with mental distress and job satisfaction in nurses in Hebron District, Palestine, in 2012. METHODS: Detailed information on work schedules (day versus shift), socio-demographic status, mental distress (General Health Questionnaire, GHQ-30) and job satisfaction (Generic Job Satisfaction Scale) in nurses employed in Hebron District, Palestine, was obtained through a questionnaire survey...
September 30, 2016: Occupational Medicine
Karen Rosenberg
No abstract text is available yet for this article.
October 2016: American Journal of Nursing
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
Apichai Wattanapisit, Krittanu Fungthongcharoen, Udomsak Saengow, Surasak Vijitpongjinda
OBJECTIVES: The study aimed to investigate the prevalence of physical activity (PA) and factors influencing PA behaviours among medical students in Southern Thailand. DESIGN: The study implemented a mixed methods approach. The sequential design consisted of 2 phases: a survey followed by in-depth interviews. SETTING: The study was conducted in the 3 campuses of a medical school in Southern Thailand. The preclinical students (years 1-3) studied general and basic science subjects at Nakhon Si Thammarat campus...
2016: BMJ Open
Joanna Burger, Michael Gochfeld
BACKGROUND: At most contaminated sites the risk to workers focuses on those 'hazardous waste workers' directly exposed to chemicals or radionuclides, and to the elaborate approaches implemented to protecting their health and safety. Ecological workers generally are not considered. OBJECTIVES: To explore the risks to the health and safety of ecological workers on sites with potential chemical and radiological exposures before, during or after remediation of contamination...
2016: Journal of Community Medicine & Health Education
W H I McLean
The main proteinaceous component of the keratohyalin granules within the granular layer keratinocytes of the epidermis is the giant, repetitive polyprotein profilaggrin. When granular layer cells commit to terminal differentiation to form the flattened squames of the stratum corneum, profilaggrin is rapidly cleaved into multiple copies of the 37 kDa filaggrin monomer, which binds to and condenses the keratin cytoskeleton, thereby facilitating cellular compression. Within the stratum corneum, filaggrin is broken down to form natural moisturising factor, a pool of amino acids and derivatives thereof that exerts multiple effects...
October 2016: British Journal of Dermatology
Carolyn J Heckman, Jacqueline D Kloss, Diane Feskanich, Elizabeth Culnan, Eva S Schernhammer
BACKGROUND: Night shift work and sleep duration have been associated with breast and other cancers. Results from the few prior studies of night shift work and skin cancer risk have been mixed and not fully accounted for other potentially important health-related variables (eg, sleep characteristics). This study evaluated the relationship between rotating night shift work and skin cancer risk and included additional skin cancer risk factors and sleep-related variables. METHODS: The current study used data from 74 323 Nurses' Health Study (NHS) II participants...
September 23, 2016: Occupational and Environmental Medicine
John J Mercuri, Neil E Okey, Raj J Karia, Richard H Gross, Joseph D Zuckerman
INTRODUCTION: To date, no study has reported on the public's opinion of orthopaedic resident duty-hour requirements (DHR). METHODS: A survey was administered to people in orthopaedic waiting rooms and at three senior centers. Responses were analyzed to evaluate seven domains: knowledge of duty hours; opinions about duty hours; attitudes regarding shift work; patient safety concerns; and the effects of DHRs on continuity of care, on resident training, and on resident professionalism...
September 22, 2016: Journal of the American Academy of Orthopaedic Surgeons
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
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
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