The Impact of Shift Work on Occupational Health Indicators among Professionally Active Adults: A Comparative Study

High sleep reactivity in shift workers is associated with increased sleep disturbance, mood problems, and reduced quality of life

INTRODUCTION

Shift work disrupts circadian rhythms, causing sleep and mood problems. Sleep reactivity-the sensitivity of sleep to stress-may affect how shift workers cope with these disruptions. This study investigated the relationship between sleep reactivity and shift work, exploring associations between sleep reactivity and sleep disturbance, mood symptoms, and quality of life in shift workers.

METHODS

In a cross-sectional design, 132 participants (79 shift workers and 53 controls) were assessed using the Ford Insomnia Response to Stress Test (FIRST), Insomnia Severity Index (ISI), Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), and World Health Organization Quality of Life (WHOQOL). We compared the self-reported measurements between shift workers and controls. Two-way ANOVA was performed to explore the interaction effects between shift work and sleep reactivity on sleep, mood parameters, and quality of life. Multiple linear regression analysis was conducted to identify factors associated with sleep, mood, and quality of life among shift workers.

RESULTS

Shift workers scored higher on ISI and BDI compared to controls. Two-way ANOVA revealed an interaction effect between shift work and sleep reactivity on WHOQOL. Regression analysis indicated that high sleep reactivity was associated with higher ISI, BDI, BAI, and lower WHOQOL among shift workers.

CONCLUSION

Sleep reactivity significantly affected shift worker's quality of life. Our findings indicate that high sleep reactivity in shift workers was associated with increased sleep disturbance, mood problems, and decreased quality of life, implying that sleep reactivity may predict shift work tolerance.

The Possible Association of Burnout and Neuropathic Low Back Pain Among Hungarian Postal Workers: A Cross-Sectional Study

Objective

Burnout is an increasingly prevalent phenomenon, which can be associated with a wide range of mental and physical illnesses. There is also a possible connection between burnout and neuropathic low back pain, but the association is poorly studied.

Methods

The aim of our cross-sectional study was to analyze the prevalence and risk factors of chronic neuropathic low back pain taking many co-variates into account, such as burnout and its main determinants among postal workers. Demographic data, risk factors and concomitant diseases were recorded. Burnout was measured with the Mini Oldenburg Questionnaire (MOLBI), neuropathic low back pain was assessed by the painDETECT questionnaire, insomnia was detected by the Athen's Insomnia Scale and depression was measured by the Beck Depression Inventory.

Results

Three hundred sixty-eight males (35.6%) and six hundred sixty-six females (64.4%) participated in our study. Low back pain occured in 182 workers (17.6%), among them 36 workers (19.4%) had neuropathic low back pain, 56 (30.9%) had mixed pain and 90 (49.7%) workers had nociceptive low back pain. In a hierarchical regression analysis strong predictors of neuropathic low back pain included having secondary employment, depression, sleep disturbance and emotional exhaustion (main component of burnout).

Conclusion

This is among the first studies showing a possible association between burnout and neuropathic low back pain, highlighting the importance of adequate burnout screening and the implementation of interventions to avoid significant disabilities.

Tackling Shift Work: Cardiovascular Health in the Auto Industry

Shift work, particularly in the auto industry, presents significant health challenges, notably in how it impacts cardiovascular health due to irregular work schedules and associated sleep disruptions. This prospective study evaluated 4683 workers from a single Romanian automotive enterprise to investigate the relationship between fixed shift work schedules and cardiovascular health outcomes. Our analysis focused on fixed-shift workers, excluding those on rotating shifts to reduce variability and enhance the clarity of the findings. The findings reveal that night shift workers are at a heightened risk of cardiovascular diseases (CVDs) compared to their day shift counterparts. Night shift workers demonstrated a higher CVD incidence (4.3%) compared to day shift workers (2.6%), with an odds ratio (OR) of 1.68 (95% CI: 1.08 to 2.62, p = 0.021). This association remained significant after adjusting for potential confounders, with an adjusted OR of 1.74 (95% CI: 1.09 to 2.75, p = 0.019). Male night shift workers exhibited a significantly higher CVD incidence (4.5%) compared to male day shift workers (3.0%), with an OR of 1.75 (95% CI: 1.07 to 2.89, p = 0.026). Female night shift workers also showed a higher CVD incidence (3.4%) compared to female day shift workers (1.3%), although this was not statistically significant. These findings underscore the urgent need for targeted interventions and effective strategies to mitigate these risks and promote the cardiovascular health and overall well-being of shift workers in the auto industry. This research contributes to a deeper understanding of how non-traditional work schedules affect health and provides a basis for implementing protective measures in occupational settings.

The neurocognitive mechanism linking temperature and humidity with miners' alertness: an fNIRS study

As the depth of coal mining increases, the temperature and humidity of the underground environment also rise, which can negatively impact the physiological health of miners, and may even pose a threat to their safety and lives. However, studies on the neurocognitive mechanisms underlying the relationship between temperature, humidity, and miners' alertness are scant. This study investigates several research objectives: (A) the differences in reaction time and error rate in different temperature and humidity conditions, which factor has a greater impact; (B) the differences in the levels of Oxy-Hb in different conditions and which factor has a greater impact; (C) the differences of activation degree between different regions of interest; and (D) the differences in the shape of Oxy-Hb time course between different conditions between different regions of interests. The fNIRS was used to measure the activity in 100 participants' prefrontal cortex in this study. The results showed that both temperature and humidity would lead to decreased alertness of miners, which would not only prolong the reaction time, increase the error rate, and increase the Oxy-Hb concentration, but also lead to increased activation of the prefrontal cortex and greater activation of the right side than that of the left side, the Oxy-Hb time course was different on both sides, and temperature has a greater effect on alertness than humidity.

Nursing Informatics Competency and Self-Efficacy in Clinical Practice among Nurses in Palestinian Hospitals

This study purposed to determine the levels of nursing informatics competency and self-efficacy in clinical practice and influencing factors on self-efficacy among Palestinian nurses in hospitals. A descriptive-correlational design was adopted. The nurses who worked in the North West Bank of Palestine (N = 331) were recruited. The data were collected using the Self-Assessment of Nursing Informatics Competencies Scale (SANICS) which consists of 30 items rated on a 5-point Likert scale, ranging from 1(not competent) to 5 (expert), and scored by calculating the mean as follows: novice/low (1.00-2.59), beginner/moderate (2.60-3.39), and competent/high (3.40-5.00); and the New General Self-Efficacy Scale (NGSE) that consists of eight items rated on a 5-point Likert scale, ranging from 1(strongly disagree) to 5(strongly agree) and scored according to the average of the scale, whereas the average of > 3 indicated high self-efficacy, and ≤ 3 reflected low self-efficacy. The data were collected during the period from September to November 2020. Findings showed that the total mean score for the nursing informatics competency scale was 2.9 (SD = 0.7), which indicated that the nurses had a moderate level of nursing informatics competency. The average score for the self-efficacy scale was 3.5 (SD = 0.8), which reflected that nurses had high self-efficacy. Self-efficacy in clinical practice increased with age and with nursing informatics competency. Thus, it is necessary to enhance nurses' informatics competency by developing continuous educational programs about this technology for nurses and engaging nurses in such programs to enhance their competencies in this system.

Salivary Biomarkers Analysis and Neurobehavioral Assessment in Nurses Working Rotation Shifts: A Pilot Study

Currently, about one in five workers is employed in night shift work in Europe. Shift work including nighttime hours is essential in several activities, especially the healthcare sector. Importantly, night working may be associated with the occurrence of sleep disorders or work-related stress, both potentially augmenting the risk of errors and accidents at work. This study aims to examine the presence of neurobehavioral alterations that can be a consequence of shift working and concurrent misalignment of the sleep times and circadian rhythms. Nurses (n = 102) employed at a University Hospital located in North-Eastern Sicily, Italy, voluntarily participated in this pilot study. During medical surveillance, morning and evening salivary samples were collected, and seven psychodiagnostics questionnaires were administered to all the subjects. On one hand, the salivary levels of stress-related biomarkers (cortisol and alpha-amylase) and a circadian biomarker (melatonin) were evaluated. On the other hand, several neurobehavioral features were assessed, including depression, anxiety, work-related, and sleep issues. Interestingly, a positive relationship between salivary morning cortisol and depression scale, as well as a negative relationship between salivary morning alpha-amylase and work ability scale, were observed. Based on these results, the integration of subjective questionnaire outcomes and objective salivary biomarker quantification can help to identify workers with increased susceptibility to developing neurobehavioral alterations. This approach may contribute to ameliorating preventive strategies towards sensitive categories, such as nurses working rotation shifts.

Parenting in a 24/7 Economy: Mothers’ Non-standard Work Schedules and Involvement in Children’s Education

Evidence suggests that parental involvement in children’s education has a positive impact on children’s educational achievements and wellbeing outcomes. The trend toward 24/7 economies has obliged many mothers to work non-standard schedules (i.e., schedules outside traditional daytime, Monday–Friday work schedules). This has raised concerns over how non-standard work schedules affect parenting behaviors, including paternal involvement in children’s education. Using data from mothers of young children (age 5–6) in Hong Kong (N = 433), this study examined the association between maternal work schedules and involvement in children’s home and school activities. The results of structural equation modeling found that weekend work was associated with lower levels of home-based involvement. By contrast, working non-standard hours was linked with higher levels of school-based involvement. This pattern suggested that non-standard work schedules could make it either easier or harder for mothers to balance work and family responsibilities, depending on the circumstances (i.e., whether they work non-standard hours or weekends). These findings, indicating that the effects of non-standard work schedules are not uniformly negative or positive, warrant sophisticated policy efforts to address the potential adverse effects of non-standard work schedules and avoid undermining their potential to be used as a family-friendly option.

The Impact of Psychological Distress on the Occupational Well-Being of Sexual and Gender Minorities

BACKGROUND

Discrimination against sexual and gender minorities in occupational settings has been an important topic of research. However, little is known about this impact in Portuguese-speaking people.

METHODS

305 Portuguese and Brazilian participants who identified as lesbian, gay, bisexual, transgender, queer, intersex, asexual, and other sexual and gender identities (LGBTQIA+) completed an online survey comprising sociodemographic questions, a set of scales to assess psychological distress, and a set of scales to assess occupational well-being.

RESULTS

Participants had higher levels of burnout, depressive symptoms, and anxiety and lower levels of work-related quality of life, engagement, and self-efficacy at work compared to the defined cut-off points for normative populations, with asexual and bisexual people appearing to be the most affected. Significant correlations were found for all variables, and psychological distress was a significant predictor of lower occupational well-being.

CONCLUSIONS

These findings are useful for understanding the occupational health of LGBTQIA+ people and suggest efforts to improve the climate in the workplace for this population.

Effect of Shift Work on Cognitive Function in Chinese Coal Mine Workers: A Resting-State fNIRS Study

Aim: Pilot study to examine the impact of shift work on cognitive function in Chinese coal mine workers. Background: Shift work is commonly used in modern industries such as the coal industry, and there is growing concern over the impact that shift work has on miners’ work performance and personal well-being. Method: A total of 54 miners working three shifts (17 in morning shift, 18 in afternoon, and 19 in night shift) participated in this exploratory study. A resting-state fNIRS functional connectivity method was conducted to assess the cognitive ability before and after the work shift. Results: Results showed significant differences in cognitive ability between before and after the work shifts among the three-shift workers. The brain functional connectivity was reduced ranking as the night, afternoon, and morning shifts. Decreased brain functional connectivity at the end of the working shift was found compared with before in the morning and afternoon shifts. Opposite results were obtained during the night shift. The resting-state functional brain networks in the prefrontal cortex of all groups exhibited small-world properties. Significant differences in betweenness centrality and nodal local efficiency were found in the prefrontal cortex in the morning and night shifts. Conclusions: The current findings provide new insights regarding the effect of shift work on the cognitive ability of Chinese coal mine workers from the view of brain science.