This study aimed to determine if there is an increased risk of incident cardiovascular diseases (CVD) resulting from cumulative night shift work in the German population-based Gutenberg Health Study ...(GHS).
We examined working participants of the GHS at baseline and after five years. Cumulative night shift work in the 10 years before baseline was assessed and categorized as low (1-220 nights ≙ up to 1 year), middle (221-660 nights ≙ 1-3 years), and high (>660 nights ≙ more than 3 years) night shift exposure. Hazard ratios (HR) were estimated for incident "quality-assured CVD events" using Cox proportional hazard models.
At baseline, 1092 of 8167 working participants performed night shift work. During the follow-up, 202 incident cardiovascular events occurred. The crude incidence rates for CVD per 1000 person-years were 6.88 95% confidence interval (CI) 4.80-9.55 for night shift workers and 5.19 (95% CI 4.44-6.04) for day workers. Cumulative incidence curves showed a higher cumulative incidence in workers exposed to night shift work compared to day workers after five years. The adjusted HR for incident CVD events were 1.26 (95% CI 0.68-2.33), 1.37 (95% CI 0.74-2.53) and 1.19 (95% CI 0.67-2.12) for employees in the low, middle and high night shift categories compared to employees without night shift work, respectively.
The observed tendencies indicate that night shift work might be negatively associated with cardiovascular health. We expect the continued follow-up will clarify the long-term impact of night shift work.
This study aimed to estimate the validity of self-reported information on ever-night shift work among women with and without breast cancer and illustrate the consequences for breast cancer risk ...estimates.
During 2015-2016, 225 women diagnosed with breast cancer and 1800 matched controls without breast cancer employed within the Danish hospital regions during 2007-2016 participated in a questionnaire-based survey. Their reported night shift work status was linked with objective payroll register day-by-day working hour data from the Danish Working Hour Database and the Danish Cancer Registry. For the breast cancer patients and their matched controls, we estimated sensitivity and specificity for ever-working night shifts using the payroll data as the gold standard. We also used quantitative bias analysis to estimate the impact on relative risk estimates for a hypothetical population.
For breast cancer patients, we observed a sensitivity of ever-night shifts of 86.2% and a specificity of never-night shifts of 82.6%. For controls, the sensitivity was 80.6% and the specificity 83.7%. Odds ratio for breast cancer in a hypothetical population decreased from 1.12 95% confidence interval (CI) 1.03-1.21 to 1.05 (95% CI 0.95-1.16) when corrected by the sensitivity and specificity estimates.
This study shows that female breast cancer patients had slightly better recall of previous night shift work than controls. Additionally, both breast cancer patients and controls recalled previous never-night shift work with low specificity. The net effect of this misclassification is a small over-estimation of the relative breast cancer risk due to night shift work.
Aims
To synthesize research on the influence of night‐shift napping on nurses.
Background
Shift work is common for hospital nurses. Various studies corroborate that shift work causes adverse health ...consequences for nurses. Night‐shift napping is a countermeasure to address the adverse outcomes of shift work.
Design
A mixed‐methods systematic review.
Data sources
The literature search included the PubMed, Web of Science, Embase, PsycINFO and Cochrane Library electronic databases from inception to December 2017. Reference lists were hand searched. Only English articles were chosen.
Review methods
A sequential explanatory design and Cochrane's methods for integrating qualitative and implementation evidence in intervention effectiveness reviews. The Mixed Methods Assessment Tool and Cochrane Risk of Bias Tool were applied to assess the methodological quality of included studies.
Results
Twenty‐two studies met our inclusion criteria. Many nurses experienced napping during their night‐shift although no clear policy emerged. Napping is beneficial to the well‐being of nurses and could improve their psychomotor vigilance and performance. However, the related studies are limited. The evidence on reducing sleepiness and fatigue was also insufficient and napping in nursing still faces challenges.
Conclusion
Although research on this topic has just started, napping during night‐shift is beneficial to nurses’ health and performance. Research should further explore the long‐term impact on of night‐shift napping on nurses, people and organization using sound methodological designs. Managers should actively develop strategies to address night‐shift napping barriers.
目的
目的在于综合性研究夜班小睡对护士的影响。
背景
轮班工作制对医院护士来说很常见。各种研究证实轮班工作制会对护士的健康造成不良后果。夜班小睡是解决轮班工作制不良后果的一种应对措施。
设计
混合方法型系统性综述
数据来源
从成立到2017年12月,文献检索包括文献服务检索系统、科学网、荷兰医学文摘数据库、心理学文摘以及考克兰图书馆的电子数据库。手工搜索了参考文献。只选择了英文文章。
综述方法
干预效果综述中的顺序性说明涉及和整合了定性实施依据的考克兰方法。采用了混合方法型评估工具和考克兰偏差风险工具来评估纳入研究的方法学质量。
结果
22项研究符合我们的纳入标准。尽管没有明确的政策出台,但许多护士在夜班期间都有小睡。小睡有益于护士的健康,可以提高他们的精神运动警惕性和表现。然而,相关的研究有限。减少嗜睡和疲劳的证据也不充分,护理中的小睡仍然面临挑战。
结论
虽然关于这个主题的研究刚刚开始,但是夜班时小睡有利于护士的健康和表现。研究应使用合理性方法学设计,进一步探索夜班小睡对护士、人员和组织的长期影响。管理者应该积极制定策略来解决夜班小睡中的障碍。
Objectives The aim of the present study was to determine whether shift workers exhibit increased perception of experimentally induced pain after working night shifts. Methods The study was a paired ...cross-over design with two sleep conditions, after at least two nights of habitual sleep and after two consecutive night shifts at work. Fifty-three nurses in rotating shift work participated. The sensitivity to electrically induced pain, heat pain, cold pain, pressure pain and pain inhibition was determined experimentally in each sleep condition. Sleepiness and vigilance were also assessed. Results Night-shift work (NSW) increased the sensitivity to electrically induced pain and heat pain (P≤0.001). Relative to habitual sleep, electrically induced pain increased by 22.3% and heat pain increased by 26.5%. The sensitivity to cold and pressure pain did not change, changes relative to habitual sleep was ＜5% (P＞0.5). Pain inhibition was 66.9% stronger after NSW versus after habitual sleep (P＜0.001). Sleepiness (measured with the Karolinska Sleepiness Scale) increased from 4.1 after habitual sleep to 6.9 after NSW (P＜0.001). Vigilance decreased after NSW, measured as a 0.03-second decrease in reaction time (P＜0.005). Conclusions Changes in pain sensitivity after NSW is measurable with clinically relevant effect sizes and may be an important marker for studies comparing the physiological effects of different shift work schedules. Explanations for the differential effect on different pain modalities should be a focus for future studies.
This study aimed to investigate the effects of various aspects of night and shift work regarding incident cerebrovascular disease (CeVD).
The cohort included 26 667 women and 3793 men (nurses and ...nursing assistants) who were employed for at least one year 2008-2016 in Region Stockholm, Sweden. Information about the cohort and working hours were obtained from a computerized employee-register and diagnoses were retrieved from national and regional registers. We used discrete time proportional hazard models to assess the risk of CeVD (2009-2017), in relation to work hour characteristics, adjusting for sex, age, country of birth, education and profession.
We observed an excess risk of CeVD (N=223) among employees who, during the preceding year, worked night shifts >30 times hazard ratio (HR) 1.44, 95% confidence interval (CI) 1.04-1.99 or ≥3 consecutive night shifts >15 times (HR 1.69, 95% CI 1.18-2.42) or with >30 quick returns (<28 hours) from night shifts (HR 1.52, 95% CI 1.10-2.10) compared to those who did not work nights. We also observed an excess risk among employees with a long duration (>5 years) of exposure to night shift work (HR 1.87, 95% CI 1.27-2.77), all supported by a dose-response pattern.
Our results show that the risk of CeVD among nurses and nursing assistants is associated with night shift work. The number of years with night shift work, the frequency of night shifts per year, the frequency of consecutive night shifts, and short recovery after night shifts influenced the risk. Work schedules aiming at minimizing these aspects of night shift work may reduce the risk.
This study aimed to investigate the association between shift work and incident dementia in two population-based cohorts from the Swedish Twin Registry (STR). The STR-1973 sample included 13,283 ...participants born 1926-1943 who received a mailed questionnaire in 1973 that asked about status (ever/never) and duration (years) of shift work employment. The Screening Across the Lifespan Twin (SALT) sample included 41,199 participants born 1900-1958 who participated in a telephone interview in 1998-2002 that asked about night work status and duration. Dementia diagnoses came from Swedish patient registers. Cox proportional-hazards regression was used to estimate hazard ratios (HR) with 95% confidence intervals (CI). Potential confounders such as age, sex, education, diabetes, cardiovascular disease and stroke were included in adjusted models. In genotyped subsamples (n = 2977 in STR-1973; n = 10,366 in SALT), APOE e4 status was considered in models. A total of 983 (7.4%) and 1979 (4.8%) dementia cases were identified after a median of 41.2 and 14.1 years follow-up in the STR-1973 and SALT sample, respectively. Ever shift work (HR 1.36, 95% CI 1.15-1.60) and night work (HR 1.12, 95% CI 1.01-1.23) were associated with higher dementia incidence. Modest dose-response associations were observed, where longer duration shift work and night work predicted increased dementia risk. Among APOE ɛ4 carriers, individuals exposed to ≥ 20 years of shift work and night work had increased dementia risk compared to day workers. Findings indicate that shift work, including night shift work, compared to non-shift jobs is associated with increased dementia incidence. Confirmation of findings is needed.
Night shift work has been found to be associated with a higher risk of cardiovascular and cerebrovascular disease. One of the underlying mechanisms seems to be that shift work promotes hypertension, ...but results have been variable. This cross-sectional study was carried out in a group of internists with the aim of performing a paired analysis of 24 h blood pressure in the same physicians working a day shift and then a night shift, and a paired analysis of clock gene expression after a night of rest and a night of work. Each participant wore an ambulatory blood pressure monitor (ABPM) twice. The first time was for a 24 h period that included a 12 h day shift (08.00-20.00) and a night of rest. The second time was for a 30 h period that included a day of rest, a night shift (20.00-08.00), and a subsequent period of rest (08.00-14.00). Subjects underwent fasting blood sampling twice: after the night of rest and after the night shift. Night shift work significantly increased night systolic blood pressure (SBP), night diastolic blood pressure (DBP), and heart rate (HR) and decreased their respective nocturnal decline. Clock gene expression increased after the night shift. There was a direct association between night blood pressure and clock gene expression. Night shifts lead to an increase in blood pressure, non-dipping status, and circadian rhythm misalignment. Blood pressure is associated with clock genes and circadian rhythm misalignement.
Nurses in hospitals across the world work shift to provide patient care 24 h a day. Shift work, which for nurses often includes working overnight, disrupts natural processes. The night shift work can ...have serious negative physical and psychological effects on nurses’ health and work performance. It has been shown that night shift work has been associated with sleep disturbances, altered physical and mental health, complicated interpersonal relationships, and a decrease in the quality of nursing care.
This study aims to assess night-shift effects on nurses' health and work performance at South Gondar Zone Public Hospitals, in 2022.
A cross-sectional study design was conducted at four hospitals, which are Debre Tabor Comprehensive Specialized Hospital, Addis Zemen Primary Hospital, Mekane Eyesus Primary Hospital, and Nifas Meucha Primary Hospital. A structured self-administered questionnaire was used to collect the data from 1st December 2021 to 1st February 2022. Data were entered into Epi data version 4.2 and then exported to SPSS version 24 for analysis. Data were summarized by using percentages and frequencies and the association between demographic factors and feelings of nurses about night shift work was assessed by using a bivariate and multivariable logistic regression model.
The findings of the study revealed the majority of nurses (68 %) disliked night shift work. Night shift exposed nurses to different health problems such as loss of sleep (27.9 %), muscular strain (24.6 %), persistent tiredness (16.4 %), and backache (12.3 %,). Night shift work also affects the work performance of nurses by increasing workload 96(39.3 %), tiredness 74 (30.3 %), and by lowering concentration 38(15.6 %). Gender (AOR = 1.94; 95 % CI: 1.06–3.57), educational status (AOR = 2.36; 95 % CI: 1.21–4.60), and marital status (AOR = 2.08; 95 % CI: 1.09–3.98) were significantly associated with the feeling of nurses about night shift work.
In this study the majority of nurses disliked night shift work. Nurses suffered from different health problems including physical and psychological problems. Night shift work also affects the work performance of nurses by increasing workload and tiredness as well as by lowering the concentration of nurses.
Background: Previous studies have demonstrated that shift work can be significantly associated with adverse effects on liver function. However, the association between shift work and alkaline ...phosphatase (ALP) enzyme as a well-known biomarker of liver disease has been undefined. Methods: This cross-sectional study was conducted on a total number of 6,475 eligible oil refinery workers. According to shift work schedules, the participants divided to the following groups: 12-hr rotating night (n = 2,630) and 12-hr fixed day (n = 3845). The Spearman's correlation and logistic regression were applied to assess the association between shift work and ALP. Results: We found significantly higher levels of ALP in 12-hr rotating night compared to 12-hr fixed-day shift work groups (196.2 ± 52.1 versus 191.5 ± 53.4). According to quartile (Q) logistic regression adjusted by significant variables between study group (age, body mass index, fasting blood sugar, and total cholesterol), the odds ratio and 95% confidence interval of high (Q2-<Q3 versus <Q1) and severe (≥Q3 versus <Q1) levels of ALP in 12-hr rotating night group in comparison to 12-hr fixed-day group were estimated as 1.26 (1.08-1.45) and 1.26 (1.09-1.45), respectively. Conclusions: This study indicated that 12-hr rotating night shift work may be associated with higher levels of ALP. More studies are needed to confirm our findings.
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