Intolerance of Uncertainty, Job Satisfaction and Work Performance in Turkish Healthcare Professionals: Mediating Role of Psychological Capital.

Objective: Psychological capital refers to internal resources including self-efficacy, hope, optimism and resilience to overcome adverse life events. The current study sought to examine the mediating role of psychological capital in the relationship between intolerance of uncertainty and job satisfaction and work performance in healthcare professionals. Methods: Participants were 302 healthcare professionals [48% females; M(SD) age = 34.0 (7.5)] and completed measures of intolerance of uncertainty, psychological capital, work performance, and job satisfaction. Results: The findings indicated that intolerance of uncertainty was negatively correlated with psychological capital, work performance, and job satisfaction, whereas psychological capital was positively correlated with job satisfaction and work performance. More importantly, the findings revealed that these relationships were mediated by psychological capital. Conclusion: The results provide several contributions that help to understand the role of psychological capital in the relationship between intolerance to uncertainty and job satisfaction and work performance.

Nurse middle managers' proactive work behavior: antecedents and consequences on innovative work behavior and job performance.

PURPOSE: Healthcare organizations require more proactive behaviors from nursing professionals. However, nurse managers' proactivity has rarely been analyzed in the literature and little is known about the antecedents and consequences of their proactive behavior at work. This study examines the relationships between job characteristics (i.e. job autonomy and job variety), psychological empowerment, proactive work behavior and job effectiveness indicators (i.e. innovative work behavior, job performance). We tested a model in which psychological empowerment and proactive work behavior sequentially mediate the relationship between job characteristics and job effectiveness. DESIGN/METHODOLOGY/APPROACH: A cross-sectional study was conducted among nurse middle managers from a French hospital (N = 321). A hypothetical model was developed based on existing theory. Structural equation modeling was used to test the hypotheses. FINDINGS: Results show that psychological empowerment and proactive work behavior fully mediate the relationship between job characteristics and innovative work behavior, and partially mediate the relationship between job characteristics and job performance. ORIGINALITY/VALUE: This study provides insights for understanding how job characteristics can contribute to fostering the proactivity of nurse middle managers and how their proactive work behavior can be positively related to innovative work behavior and job performance. Findings raise several implications for hospital administrators and upper management seeking new ways to enhance nurse middle managers' proactive work behavior and push further their effectiveness at work.

"Exploring the relationship of organizational virtuousness, citizenship behavior, job performance, and combatting ostracism" through structural equational modeling.

BACKGROUND: This theoretical model has been drawn on principles of social exchange theory to scrutinize the connection between organizational virtuousness and job performance with the mediating role of Organizational citizenship behavior and moderating role of workplace ostracism. A survey was conducted in Pakistan, gathering data from 486 employees working for various private and commercial banks. METHOD: Soft and hard questionnaires were distributed to the participants, with social media platforms used for the soft questionnaires and meetings with employees for the hard questionnaires. A 7-point Likert scale was employed in data collection, and measures for the variables were adapted from reliable and valid sources. A demographic analysis was performed to summarize the sample collected from participants. The demographics results were analyzed using SPSS, while the measurement model and path analysis were conducted using Structural Equational Modeling with Smart PLS-4. RESULTS: The study's findings showed a significant and positive relationship between organizational virtuousness and job performance, with organizational citizenship behavior serving as a mediator. Additionally, a negative moderation of workplace ostracism was observed in the mediation of organizational citizenship behavior toward the relationship between organizational virtuousness and job performance. CONCLUSION: The study's results contribute to the implementation of social exchange theory and related concepts in the banking sector of Pakistan, providing practical guidance for implementing virtuous practices within organizations and discouraging ostracism in banks to enhance overall performance. The study suggests that policies regarding the implementation of virtuous practices in organizations can be established, and workplace ostracism can be avoided by providing a platform for social gatherings and training employees. Managers should adopt appropriate leadership styles and relevant communication patterns to impact the organizational climate which can also help reduce the influence of ostracism in the organization. Additionally, a complaint cell should be established with complete confidentiality to reduce ostracism.

Does the job performance of academics' influence burnout and psychological counselling? A comparative analysis amongst high-, average-, low-, and non-performers.

BACKGROUND: Extensive research has been conducted treating burnout as an independent variable and performance as a dependent variable to proffer possible solutions to burnout and job performance among academics. Despite this, the burnout crises persist and are exacerbated by the ongoing global proliferation of higher education. Acknowledging this, the current study explored whether performance may contribute to the emergence of burnout. METHODS: The study's sample population comprised 689 academics from Jiangsu province, China. Key Performance Indicator (KPI) results served to measure performance. Psychological counselling and Burnout were calculated using mental health results garnered from the universities. Data was collected on respondents' demographic characteristics and work situations. The mean scores were 0.517 (SD = 0.5) for gender and 1.586 (SD = 1.103) for age. The relationship among performance, job burnout, and psychological counselling was analysed via a cross-sectional survey deploying grouped regression. RESULTS: Academics' job performance was found to regulate their burnout (ß = -0.058, P < 0.01). Higher performance of academics was significantly associated with lower job burnout and psychological counselling. Furthermore, psychological counselling significantly moderated job burnout (ß = -0.012, P < 0.05) among academics without regulating their job performance. CONCLUSION: The paper supplements the discourse on job burnout and academic performance by suggesting a pre-counselling measure as a strategy to address the crises of burnout. The paper argued that the continued competence of employees should prevent burnout in Higher education and ensure better job performance.

Hybrid working from home improves retention without damaging performance.

Working from home has become standard for employees with a university degree. The most common scheme, which has been adopted by around 100 million employees in Europe and North America, is a hybrid schedule, in which individuals spend a mix of days at home and at work each week1,2. However, the effects of hybrid working on employees and firms have been debated, and some executives argue that it damages productivity, innovation and career development3-5. Here we ran a six-month randomized control trial investigating the effects of hybrid working from home on 1,612 employees in a Chinese technology company in 2021-2022. We found that hybrid working improved job satisfaction and reduced quit rates by one-third. The reduction in quit rates was significant for non-managers, female employees and those with long commutes. Null equivalence tests showed that hybrid working did not affect performance grades over the next two years of reviews. We found no evidence for a difference in promotions over the next two years overall, or for any major employee subgroup. Finally, null equivalence tests showed that hybrid working had no effect on the lines of code written by computer-engineer employees. We also found that the 395 managers in the experiment revised their surveyed views about the effect of hybrid working on productivity, from a perceived negative effect (-2.6% on average) before the experiment to a perceived positive one (+1.0%) after the experiment. These results indicate that a hybrid schedule with two days a week working from home does not damage performance.

Biophilia in the home-workplace: Integrating dog caregiving and outdoor access to explain teleworkers' daily physical activity, loneliness, and job performance.

We examined whether dog caregiving and outdoor access affect the relationships between a teleworking day and teleworkers' daily physical activity, loneliness, and job performance during the pandemic in two different seasons in 2021. Building on the biophilia hypothesis, we hypothesized that dog caregiving and outdoor access would attenuate the adverse effects of telework on our outcomes. We tested our cross-level moderation hypotheses in a Belgian daily diary data set combining two data collections during 10 workdays in two seasons: One in 284 teleworking employees in spring and one in 151 teleworking employees in autumn-of whom 75 also participated in spring (Npersons = 360, Ndatapoints = 3,809). Consistent with our hypotheses, mixed coefficient modeling showed two-way interactions between teleworking day and dog caregiving, and between teleworking day and outdoor access on daily physical activity, daily loneliness, and daily job performance. Specifically, both dog caregiving and outdoor access buffered against the harmful effects of a teleworking day on these three outcomes: On teleworking days compared to nonteleworking days, there was a smaller decrease in physical activity and in job performance for employees who had a dog or who had outdoor access compared to employees who did not. Likewise, dog caregiving and outdoor access buffered against an increase in loneliness on teleworking days, with a less steep increase for employees with a dog or outdoor access. Our study shows the importance of contextualizing the home context more broadly by including dogs and outdoor access at home when considering the effects of telework during and after the pandemic. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Job demands-resources theory: Frequently asked questions.

Job demands-resources (JD-R) theory is commonly used to predict employee well-being, work behaviors, and performance. This article provides a short description of JD-R theory and discusses issues and questions that have been raised regarding the theory. These issues include the differences between conservation of resources theory and JD-R theory, whether a job resource can be a job demand, the impact of job resources on strain and health, the role of hindrance and challenge job demands in JD-R theory, the relationship between job demands and resources, and the likelihood of work engagement being a redundant concept. We also discuss whether JD-R theory can be falsified, the role of personality in the theory, within- and between-person effects in JD-R theory, the question whether there is a standard JD-R questionnaire, and the existence of loss and gain spirals. Finally, we discuss the use of JD-R theory in domains other than work and answer the question whether JD-R theory is universally applicable. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Whether academics' job performance makes a difference to burnout and the effect of psychological counselling-comparison of four types of performers.

Treating burnout as an independent variable while performance is the dependent variable, earlier studies revealed that job burnout experienced by academics adversely affects how well they perform. Whether performance may contribute to the emergence of burnout is yet to be analyzed-it is an issue investigated in this paper. Readjusting the nature of the variables, this quantitative study adopted group regression and it discovered that the performance of academics instead regulates their burnout without making performance a consequence of burnout-a new dynamic that challenges the earlier assumption. Following this earlier belief, counselling strategy to boost the employees' psyche was deemed to be the main post-measurement tool to deal with the burnout crisis. With respect to both tenets (current and earlier), psychological counselling was treated as a moderating variable to check whether it is important enough in removing the burnout felt by employees so that they subsequently could function better. It is further discovered that although psychological counselling removes employees' burnout to some extent, it failed to transform them into better-functioning people. This study suggests a pre-measurement counselling strategy will ensure academics are competently engaged since ensuring competency is a fundamental aspect of eliminating a job burnout crisis. The sustained competency of employees will eventually prevent burnout and may halt the transmission of a burnout crisis at large-it adds to this study's theoretical contribution to the topic.

[The relationships between recovery and teachers' exhaustion and performance: mediational role of work-related self-efficacy]. / Psychiczna regeneracja po pracy a wyczerpanie i wydajnosc nauczycieli: mediujaca rola przekonan o wlasnej skutecznosci zawodowej.

BACKGROUND: The aim of the study was to better understand the process through which recovery leads to teachers' exhaustion and performance. The direct and the indirect, i.e., mediated by teacher' work-related self-efficacy, effects of recovery on exhaustion and job performance were measured. To assessment of recovery, the Polish version of the Work-Related Rumination Scale (W-RRS) was developed. It measures detachment, affective rumination and problem-solving pondering. The psychometric properties of this tool constitute an additional contribution to the article. MATERIAL AND METHODS: The study was conducted among a group of primary and secondary school teachers (N = 503). The factor structure of the W-RRS scale was checked using confirmatory factor analysis (CFA), its reliability by using of Cronbach's α measure, and its theoretical validity by means of correlation of main variables with criterion variables. Hypotheses related to direct and mediation effects were verified using structural equation modeling (SEM). RESULTS: The obtained results confirmed the criterion and construct validity and reliability of the W-RRS. It has been also shown that detachment is directly negatively associated with exhaustion (but not with performance), affective rumination is a predictor of higher exhaustion and lower job performance, and problem-solving pondering is related to job performance (but not to exhaustion). Self-efficacy mediates the effect of 2 (out of the 3) types of recovery on exhaustion and job performance, such that high levels of problem-solving pondering and low levels of affective rumination translate into high self-efficacy, which in turn leads to lower exhaustion and higher job performance. CONCLUSIONS: The recovery methods have various implications for functioning of teachers. While detachment and problem-solving pondering seem to promote it, affective rumination intensifies exhaustion and reduces performance. The mediator of the recovery-psychological well-being relationship is self-efficacy. The W-RRS questionnaire can be used to assessment of rumination among teachers. Med Pr Work Health Saf. 2024;75(2):143-158.

The Effect of Nutrients on Subjective Accomplishment at Work: Results from a Health Survey and a Single-Arm Dietary Intervention Study.

In Japan, many workers are exposed to chronic stress, sleep deprivation, and nutritional imbalance. They tend still to go to work when ill, leading to decreased work performance and productivity, which has become a major social problem. We conducted a human entry study with the aim of finding a link between these two factors and proposing an optimized diet, believing that a review of diet may lead to an improvement in labor productivity. In this study, we used subjective accomplishment (SA) as a measure of productivity. First, we compared nutrient intake between groups with high and low SA using data from a health survey of 1564 healthy male and female adults. Significant differences were found in the intake of 13 nutrients in males and 15 nutrients in females, including potassium, vitamin A, insoluble fiber, and biotin. Recommended daily intake of these nutrients was determined from survey data. Next, we designed test meals containing sufficient amounts of 17 nutrients and conducted a single-arm intervention study (registration code UMIN000047054) in Kameyama City, Mie Prefecture, Japan. Healthy working adults (males and females aged 20-79 years) were recruited and supplied with test meals, which were eaten once a day 5 days a week for 8 weeks. SA was significantly higher and daytime sleepiness (DS) was significantly lower after lunch on workdays in younger participants (under 60 years) when they ate the test meals as breakfast or lunch. Our results suggest that SA and DS, which change daily, are strongly influenced by the meal eaten before work, and that taking the 17 nutrients may help prevent presenteeism and improve labor productivity.

Linking grandiose and vulnerable narcissism to managerial work performance, through the lens of core personality traits and social desirability.

While grandiose narcissism is well-studied, vulnerable narcissism remains largely unexplored in the workplace context. Our study aimed to compare grandiose and vulnerable narcissism among managers and people from the general population. Within the managerial sample, our objective was to examine how these traits diverge concerning core personality traits and socially desirable responses. Furthermore, we endeavored to explore their associations with individual managerial performance, encompassing task performance, contextual performance, and counterproductive work behavior (CWB). Involving a pool of managerial participants (N = 344), we found that compared to the general population, managers exhibited higher levels of grandiose narcissism and lower levels of vulnerable narcissism. While both narcissistic variants had a minimal correlation (r = .02) with each other, they differentially predicted work performance. Notably, grandiose narcissism did not significantly predict any work performance dimension, whereas vulnerable narcissism, along with neuroticism, predicted higher CWB and lower task performance. Conscientiousness emerged as the strongest predictor of task performance. This study suggests that organizations might not benefit from managers with vulnerable narcissism. Understanding these distinct narcissistic variants offers insights into their impacts on managerial performance in work settings.

A home environment-moderated model of the influence of ergonomics on individual work performance among Filipino nurse educators working from home during the COVID-19 pandemic: An interaction moderation analysis using structural equation model.

AIM: To determine the influence of ergonomics on individual work performance of nurse educators working at home during the COVID-19 pandemic and to develop a model of the moderating effect of home environment. DESIGN: Cross-sectional, predictive-correlational design. METHODS: Utilizing interaction moderation and structural equation modeling, 214 consecutively-selected educators from nursing schools in the Greater Manila Area, Philippines completed a four-part online survey. RESULTS: Physical, cognitive, and organizational ergonomics positively influenced individual work performance. Home environment had a linear, positive moderation on the effects of physical and cognitive ergonomics on individual work performance but had a negative moderating effect with organizational ergonomics. CONCLUSION: The moderated model underscored the positive effects of ergonomics and the moderating effect of home environment on the individual work performance of nurse educators working at home during the COVID-19 pandemic, and this knowledge can be used in developing appropriate programs, strategies, and policies. IMPACT: The moderated model highlights the need for policies and programs, training and education, and organizational evaluation geared towards promoting healthy workplace and work-life balance among nurse educators transitioning to remote work and online teaching. PATIENT OR PUBLIC CONTRIBUTION: Eligible participants contributed in the data collection with the survey responses.

Changes in menstrual symptoms and work productivity after checklist-based education for premenstrual syndrome: an 8-month follow-up of a single-arm study in Japan.

BACKGROUND: Premenstrual syndrome (PMS) is prevalent among women of reproductive age, but most do not seek medical advice. We hypothesized that building PMS awareness could promote medical help-seeking for PMS and thus reduce menstrual symptoms and improve work productivity. METHODS: In January 2020, women aged between 25 and 44 years, having paid work, and not currently consulting with an obstetrics and gynecology doctor (n = 3090) responded to the Menstrual Distress Questionnaire (MDQ), the Premenstrual Symptoms screening tool, and the World Health Organisation Health and Work Performance Questionnaire. In addition, they received checklist-based online education for PMS. Of 3090 participants, 2487 (80.5%) participated in a follow-up survey in September 2020. We conducted multiple logistic regression analyses and text analyses to explore factors that encouraged and discouraged medical help-seeking. We also evaluated changes in menstrual symptoms and work productivity, using generalized estimating equations with interactions between the severity of PMS, help-seeking, and time. RESULTS: During the follow-up period, 4.9% of the participants (121/2487) sought medical help. Those having high annual income (adjusted odds ratio [aOR] = 2.07, 95% confidence interval [CI]: 1.21-3.53) and moderate-to-severe PMS (aOR = 2.27, 95% CI: 1.49-3.46) were more likely to have sought medical help. Those who did not seek medical help despite their moderate-to-severe PMS reported normalization of their symptoms (36%), time constraints (33%), and other reasons for not seeking medical help. Participants with moderate-to-severe PMS who had sought medical help showed a significant improvement of - 8.44 points (95% CI: - 14.73 to - 2.15 points) in intermenstrual MDQ scores during the follow-up period. However, there were no significant improvements in premenstrual and menstrual MDQ scores or absolute presenteeism. CONCLUSION: Medical help-seeking alleviated intermenstrual symptoms in women with moderate-to-severe PMS, but only a small proportion of them sought medical help after PMS education. Further research should be conducted to benefit the majority of women who are reluctant to seek medical help, including the provision of self-care information. TRIAL REGISTRATION: UMIN Clinical Trials Registry number: UMIN000038917.

The influence of digital technologies on resilient performance: Contributions, drawbacks, and a research agenda.

The growing use of digital technologies (DTs) has a myriad of implications to socio-technical systems, which are not yet fully recognised. This paper investigates the contributions and drawbacks of DTs to resilient performance (RP), an aspect that so far has received less attention in comparison to others such as efficiency. To this end, a survey questionnaire was applied to 79 academics and practitioners linked to resilience engineering. Data analysis involved descriptive statistics and a thematic analysis of the open-text responses to the survey. Mixed impacts were identified, with 10 themes related to contributions and 16 to drawbacks. Regarding the contributions, the results highlighted the use of DTs for monitoring and anticipating system performance. Machine learning seems to be the most promising approach for this purpose. A key drawback is the need for developing new skills across the workforce so that they can make sense of the outputs of DTs and are aware of their strengths and weaknesses. The human role is expected to remain crucial for RP, which makes the current coordination difficulties with DTs even more important to address. A research agenda composed of five topics is proposed, encompassing description, prescription, and assessment. The agenda emphasizes the need for mapping the attributes or functionalities of DTs onto resilience concepts, models, and frameworks.

Personality and Job Performance in Türkiye: Psychometric Meta-analysis of Turkish Studies / [La personalidad y el desempeño laboral en Turquía: Meta-análisis psicométrico de estudios turcos]

For decades researchers have explored the link between the Big Five personality traits and job performance, conducting studies across various contexts and sectors. The study seeks to test the link between the Big Five dimensions of personality and job performance in Türkiye, for which an integration of 38 studies involving 18,021 participants was performed. By using psychometric meta-analysis, the study compares and evaluates the similarities and differences among the Türkiye studies and the broader literature on this topic. Additionally, this study is among the first to address the moderating effect of evaluators and sectors on the relationship between Big Five personality traits and job performance dimensions. The findings suggest that there are differences between the Turkish studies and the existing literature, which could be explained by cultural differences and social norms specific to collectivist countries like Türkiye.(AU)

Los investigadores han explorado durante decenios la relación entre los rasgos de personalidad de los cinco grandes factores y el desempeño en el trabajo, mediante estudios en diversos contextos y sectores. El estudio pretende probar el vínculo entre las dimensiones de personalidad de los cinco grandes y el rendimiento laboral en Turquía, para lo que se llevó a cabo la integración de 38 estudios en los que participaron un total de 18,021 sujetos. Mediante meta-análisis psicométricos el estudio compara y valora las semejanzas y diferencias entre los estudios de Turquía y las publicaciones más amplias sobre el tema. Además el estudio es uno de los primeros que aborda el efecto moderador de los evaluadores y sectores en la relación entre los rasgos de personalidad de los cinco grandes y las dimensiones del desempeño en el trabajo. Los resultados indican que hay diferencias entre los estudios turcos y otros estudios, lo que podría explicarse por las diferencias culturales y las normas sociales específicas de países colectivistas como Turquía.(AU)

Don’t Curb Your Enthusiasm. The Role of Work Engagement in Predicting Job Performance / [No reprimas tu entusiasmo. El papel del compromiso laboral en la predicción del desempeño]

Substantial evidence supports the idea that engaged workers reach high performance levels. Nevertheless, most research does not take into account that job performance is multidimensional. The current study aimed to investigate the relationship between work engagement and performance (task performance, contextual performance, counterproductive work behaviors, and adaptive performance) and determine whether work engagement provides incremental validity over the Big Five personality traits in the prediction of performance. A questionaire with the variables of interest was filled in by 365 workers. Regression analyses revealed that work engagement plays a role in all dimensions of job performance. Results also revealed the differential functioning of work engagement dimensions, with vigor as the main predictor of task performance and the second predictor of adaptive performance, even when considering personality. High absorption decreases task performance but increases contextual performance, while dedication mediates between personality (i.e., agreeableness and extraversion) and CWB.(AU)

Existe una evidencia sólida sobre el hecho de que los trabajadores comprometidos alcanzan altos niveles de desempeño. Sin embargo, la mayoría de las investigaciones no tienen en cuenta que el desempeño laboral es multidimensional. El presente estudio tiene como objetivos investigar la relación entre el compromiso laboral y el desempeño (de tarea, contextual, conductas contraproductivas y adaptativo) y determinar si el compromiso laboral aumenta la validez predictiva de los cinco grandes rasgos de personalidad en la predicción del desempeño. Se administró un cuestionario con las variables de interés a 365 trabajadores. Los análisis de regresión muestran que el compromiso laboral juega un papel en la predicción de todas las dimensiones del desempeño laboral. Los resultados también revelaron el funcionamiento diferencial de las dimensiones del compromiso laboral, siendo el vigor el principal predictor del desempeño de tarea y el segundo predictor del desempeño adaptativo, incluso cuando se controlan los rasgos de personalidad. Una gran absorción disminuye el desempeño de tarea, pero aumenta el contextual, mientras que la dedicación actúa como variable mediadora entre la personalidad (amabilidad y extraversión) y las conductas contraproductivas.(AU)

Effect of nutritional guidance on employee work ability, work well-being and quality of life (RAVI trial): Study protocol for a randomized controlled trial.

BACKGROUND: The minority of working-age Finns eat according to the national and Nordic nutritional guidelines and increasing numbers of health problems affect the Finnish workforce. Coincidently recruiting new workers in the more rural areas of Finland, such as Satakunta, has been problematic. To optimize the use of the existing workforce, health promotion interventions focusing on nutrition have been suggested to improve the health and well-being of the current working age Finns. METHODS AND ANALYSIS: The aim of this RCT study is to assess the effectiveness of a 12-month multifactorial nutritional guidance intervention to improve work ability (performance), work well-being, health-related quality of life, work productivity, sickness absence, dietary intake and eating habits. In total, six small or medium-sized companies and their employees (n = 170) from the Satakunta region will be recruited. Companies will be randomized 1:1 to a 12-month multifactorial nutritional guidance intervention group (INT) or a control group (CG). Comprehensive measurements are taken before randomization (baseline) and at the end of the 12-month study period. Primary outcomes (work ability, work well-being and health-related quality of life) are measured with Work Ability Index, Utrecht Work Engagement Scale short questionnaire and EQ-5D. Dietary intake and eating habits are measured with 3-day food records and Food Frequency Questionnaire (FFQ). DISCUSSION: This study will provide nationally important data on how workplace nutrition guidance affects work-related outcomes, quality of life, and nutritional and overall health status among working age Finns.

Effectiveness of mHealth interventions to promote physical activity and reduce sedentary behaviours on work-related productivity and performance: a systematic review protocol.

INTRODUCTION: Technologies such as health and fitness applications (apps) and wearable activity trackers have recently gained popularity and may play a key role in promoting physical activity and reducing sedentary behaviours. Although several systematic reviews have investigated their efficacy in physical activity and sedentary behaviours, few studies have focused on their impact on work-related outcomes among workers. Here, to explore the effects of mHealth interventions designed to encourage physical activity and decrease sedentary behaviours on work-related outcomes, including absenteeism, presenteeism, productivity, work performance and workability among workers, we will conduct a systematic review based on recent articles and an extensive literature search. METHODS AND ANALYSIS: The literature search will be performed using PubMed, Web of Science, the Cochrane Library and the Japan Medical Abstracts Society from inception to 23 September 2023. We will select studies that (1) investigated the impact of mHealth interventions to promote physical activity and reduce sedentary behaviours on work-related outcomes such as absenteeism, presenteeism, productivity, work performance and workability; (2) were designed as a randomised controlled trial (RCT) or non-randomised study of interventions (NRSI); (3) were conducted among workers and (4) were published as full-text original articles in Japanese or English. We will assess the review quality with the AMSTAR 2 tool. The risk of bias will be assessed with the RoB tool 2.0 and ROBINS-I. ETHICS AND DISSEMINATION: Ethical approval is unnecessary as the study will rely solely on previously published articles. The research results will be submitted for publication in a peer-reviewed scientific journal. TRIAL REGISTRATION NUMBER: The study protocol has been registered with the UMIN Clinical Trials Registry (ID=UMIN000052290).

The Association Between Social Determinants of Health, Risk Factors, Job Performance, and Health Care Costs in an Employed Population.

OBJECTIVE: The aim of the study is to compare employees of a US school district based on their social determinants of health (SDoH). Methods: Employees ( N = 5006) were categorized into low-, medium-, or high-need SDoH tiers. Of them, n = 2469 also participated in a health risk appraisal in 2019. Subjects' average health care costs, health risk factors, and self-rated job performance were compared by SDoH tier and race. Results: Significant differences were observed among the SDoH comparison groups regarding age, gender, race, and marital status. SDoH was associated with health care costs, number of health risk factors, and self-rated job performance differently for Black and White employees. Conclusions: SDoH are complex and multifaceted. Black employees in the high-need SDoH group had higher average health care costs, lower self-rated job performance, and more average health risk factors than subjects in the lower need tiers.

Impact of lighting environment on human performance and prediction modeling of personal visual comfort in enclosed cabins.

Enclosed cabins are of great significance in various fields, including national defense, scientific research, and industrial applications. It is important to clarify the impact of the lighting environment in these cabins on the people operating within them. This study investigated the effects of the lighting environment in enclosed cabins on the physiological, operational, and comfort performance of operators through simulated experiments. In Addition, using the Random Forest Algorithm and ExpandNet technique, we developed a prediction model to evaluate the comfort level of the lighting environment for personnel in enclosed cabins. The results indicated that pupil diameter exhibited the highest sensitivity to ambient light. The appropriate luminance combination of the screen and the ambient scene have a positive effect on human performance. In particular, it was observed that the average cognitive performance and comfort of participants tended to be relatively high in the luminance combinations 13, 14, and 15 at CCT 5500 K. The screen luminance of these combinations are all 284.75 cd/m2. Although no statistically significant relationship was found between the cognitive performance of the participants and their comfort, the comfort of the participants tended to decrease after the cognitive operations was completed. According to the proposed personal comfort prediction model, the visual comfort of different people varies even under the same lighting conditions. This study provides a solid theoretical basis for improving the design of lighting environments in enclosed spaces and contributes to developing a pleasant and productive working environment within limited cabins.