Effect of Exercise on Mental Health and Health-related Quality of Life in Adults With Spinal Cord Injury: A Systematic Review and Meta-Analysis.

OBJECTIVES: To determine the effect of exercise interventions on mental health and health-related quality of life (HRQoL) in individuals with SCI. DATA SOURCES: We searched Embase, CINAHL, Medline, PsychINFO, and SPORTDiscus from inception to September 2023. STUDY SELECTION: We included randomized controlled trials that (1) involved participants ≥18 years old with a SCI; (2) administered an exercise intervention; and (3) measured subjective well-being, psychological well-being, social well-being, and/or HRQoL as outcomes. We reported standardized means differences (d) with a 95% confidence interval (CI), assessed the risk of bias by using the Revised Cochrane Risk-of-bias Tool for Randomized Trials (RoB 2), and the certainty of the evidence using GRADE. DATA SYNTHESIS: Nineteen studies (797 participants, mean age <65 years in every study) were included. Exercise improved overall well-being (d=0.494; 95% CI 0.268, 0.720; low certainty evidence), subjective well-being (d=0.543; 95% CI 0.270, 0.816; low certainty evidence), psychological well-being (d=0.499; 95% CI 0.193, 0.805; low certainty evidence), social well-being (d=0.452; 95% CI 0.151, 0.752; low certainty evidence), and HRQoL (d=0.323; 95% CI 0.072, 0.574; low certainty evidence). Four serious adverse events probably attributable to the interventions were reported in 3 studies. CONCLUSIONS: Exercise interventions can improve well-being and HRQoL in adults with SCI <65 years of age. Additional research is needed to determine effectiveness in adults ≥65 years of age.

Experiential Aspects of Participation in Employment and Mobility for Adults With Physical Disabilities: Testing Cross-Sectional Models of Contextual Influences and Well-Being Outcomes.

OBJECTIVE: To use structural equation modeling to test research- and theory-informed models of potential predictors and outcomes of subjective experiences of employment and mobility participation in a national sample of people with physical disabilities. DESIGN: Cross-sectional survey. SETTING: Canada. PARTICIPANTS: English or French-speaking adults with a physical impairment affecting mobility and restricting activities or participation, and who participated in employment (n=457) or mobility (n=711) life domains. INTERVENTIONS: N/A. MAIN OUTCOME MEASURES: Participants completed standardized measures of perceived health, and employment-specific and/or mobility-specific measures of perceived abilities, social support, accessibility and policies (predictor variables); the Measure of Experiential Aspects of Participation (MeEAP) in employment and/or mobility; and standardized measures of emotional well-being, social well-being and life satisfaction (outcome variables). RESULTS: Analyses using structural equation modeling showed that in both employment and mobility domains, perceived health, abilities, social support, and accessibility were positively related to experiential aspects of participation. Participation experiences were positively related to social well-being, emotional well-being, and life satisfaction. CONCLUSIONS: Results support and extend current theorizing on participation experiences among adults with physical disabilities. Intrapersonal and environmental factors may play a role in optimizing participation experiences in employment and mobility which, in turn, may lead to better well-being and life satisfaction. These results emphasize the importance of conceptualizing participation from an experiential perspective and provide a basis for advancing theory and practice to understand and improve the participation experiences and well-being of adults living with physical disabilities.

Artificial intelligence and the work-health interface: A research agenda for a technologically transforming world of work.

The labor market is undergoing a rapid artificial intelligence (AI) revolution. There is currently limited empirical scholarship that focuses on how AI adoption affects employment opportunities and work environments in ways that shape worker health, safety, well-being and equity. In this article, we present an agenda to guide research examining the implications of AI on the intersection between work and health. To build the agenda, a full day meeting was organized and attended by 50 participants including researchers from diverse disciplines and applied stakeholders. Facilitated meeting discussions aimed to set research priorities related to workplace AI applications and its impact on the health of workers, including critical research questions, methodological approaches, data needs, and resource requirements. Discussions also aimed to identify groups of workers and working contexts that may benefit from AI adoption as well as those that may be disadvantaged by AI. Discussions were synthesized into four research agenda areas: (1) examining the impact of stronger AI on human workers; (2) advancing responsible and healthy AI; (3) informing AI policy for worker health, safety, well-being, and equitable employment; and (4) understanding and addressing worker and employer knowledge needs regarding AI applications. The agenda provides a roadmap for researchers to build a critical evidence base on the impact of AI on workers and workplaces, and will ensure that worker health, safety, well-being, and equity are at the forefront of workplace AI system design and adoption.

The Employment Quality of Persons with Disabilities: Findings from a National Survey.

PURPOSE: Labour market integration is a widely accepted strategy for promoting the social and economic inclusion of persons with disabilities. But what kinds of jobs do persons with disabilities obtain following their integration into the labour market? In this study, we use a novel survey of workers to describe and compare the employment quality of persons with and without disabilities in Canada. METHODS: We administered an online, cross-sectional survey to a heterogeneous sample of workers in Canada (n = 2,794). We collected data on sixteen different employment conditions (e.g., temporary contract, job security, flexible work schedule, job lock, skill match, training opportunities, and union membership). We used latent class cluster analysis to construct a novel typology of employment quality describing four distinct 'types' of employment: standard, portfolio, instrumental, and precarious. We examined associations between disability status, disability type, and employment quality. RESULTS: Persons with disabilities reported consistently lower employment quality than their counterparts without disabilities. Persons with disabilities were nearly twice as likely to report low-quality employment in the form of either instrumental (i.e., secure but trapped) or precarious (i.e., insecure and unrewarding) employment. This gap in employment quality was particularly pronounced for those who reported living with both a physical and mental/cognitive condition. CONCLUSION: There are widespread inequalities in the employment quality of persons with and without disabilities in Canada. Policies and programs aiming to improve the labour market situation of persons with disabilities should emphasize the importance of high-quality employment as a key facet of social and economic inclusion.

Racial and Ethnic Inequities in the Return-to-Work of Workers Experiencing Injury or Illness: A Systematic Review.

PURPOSE: Non-White workers face more frequent, severe, and disabling occupational and non-occupational injuries and illnesses when compared to White workers. It is unclear whether the return-to-work (RTW) process following injury or illness differs according to race or ethnicity. OBJECTIVE: To determine racial and ethnic differences in the RTW process of workers with an occupational or non-occupational injury or illness. METHODS: A systematic review was conducted. Eight academic databases - Medline, Embase, PsycINFO, CINAHL, Sociological Abstracts, ASSIA, ABI Inform, and Econ lit - were searched. Titles/abstracts and full texts of articles were reviewed for eligibility; relevant articles were appraised for methodological quality. A best evidence synthesis was applied to determine key findings and generate recommendations based on an assessment of the quality, quantity, and consistency of evidence. RESULTS: 15,289 articles were identified from which 19 studies met eligibility criteria and were appraised as medium-to-high methodological quality. Fifteen studies focused on workers with a non-occupational injury or illness and only four focused on workers with an occupational injury or illness. There was strong evidence indicating that non-White and racial/ethnic minority workers were less likely to RTW following a non-occupational injury or illness when compared to White or racial/ethnic majority workers. CONCLUSIONS: Policy and programmatic attention should be directed towards addressing racism and discrimination faced by non-White and racial/ethnic minority workers in the RTW process. Our research also underscores the importance of enhancing the measurement and examination of race and ethnicity in the field of work disability management.

A Sensibility Assessment of the Job Demands and Accommodation Planning Tool (JDAPT): A Tool to Help Workers with an Episodic Disability Plan Workplace Support.

Purpose Sensibility refers to a tool's comprehensiveness, understandability, relevance, feasibility, and length. It is used in the early development phase to begin assessing a new tool or intervention. This study examined the sensibility of the job demands and accommodation planning tool (JDAPT). The JDAPT identifies job demands related to physical, cognitive, interpersonal, and working conditions to better target strategies for workplace supports and accommodations aimed at assisting individuals with chronic health conditions. Methods Workers with a chronic health condition and workplace representatives were recruited from health charities, workplaces, and newsletters using convenience sampling. Cognitive interviews assessed the JDAPT's sensibility. A 70% endorsement rate was the minimum level of acceptability for sensibility concepts. A short screening tool also was administered, and answers compared to the complete JDAPT. Results Participants were 46 workers and 23 organizational representatives (n = 69). Endorsements highly exceeded the 70% cut-off for understandability, relevance, and length. Congruence between screening questions and the complete JDAPT suggested both workers and organizational representatives overlooked job demands when completing the screener. Participants provided additional examples and three new items to improve comprehensiveness. The JDAPT was rated highly relevant and useful, although not always easy to complete for someone with an episodic condition. Conclusions This study highlights the need for tools that facilitate accommodations for workers with episodic disabilities and provides early evidence for the sensibility of the JDAPT.

Disability and sex/gender intersections in unmet workplace support needs: Findings from a large Canadian survey of workers.

INTRODUCTION: Individual attributes including disability and sex/gender have the potential to intersect and determine the likelihood of unmet workplace support needs. Our study compares unmet workplace support needs between workers with and without a disability, and according to disability type and sex/gender differences. METHODS: Workers with (n = 901) and without (n = 895) a disability were surveyed to examine their need and use of workplace supports including job accommodations, work modifications and health benefits. A multivariable logistic model was conducted to examine the relationship between disability status, disability type and sex/gender and unmet workplace support needs. The model included interaction terms between sex/gender × physical disability, sex/gender × nonphysical disability, and sex/gender × physical and nonphysical disability. RESULTS: Among participants with a disability, 24% had a physical disability, 20% had a nonphysical disability (e.g., cognitive, mental/emotional or sensory disability) and 56% had both physical and nonphysical disability. Over half of the respondents were women (56%). Results from the multivariable model showed that nondisabled women were more likely to report unmet workplace support needs when compared to nondisabled men (odds ratio [OR] = 1.54, 95% confidence interval [CI], 1.13-2.10). Findings also showed an intersection between the number and type of disability and sex/gender; women with both a physical and nonphysical disability had the greatest likelihood of reporting unmet workplace support needs when compared to nondisabled men (OR = 2.73; 95% CI, 1.83-4.08). CONCLUSIONS: Being a woman and having one or more disabilities can determine unmet workplace support needs. Strategies to address workplace support needs should consider the intersection between disability and sex/gender differences.

Fragmentation in the future of work: A horizon scan examining the impact of the changing nature of work on workers experiencing vulnerability.

INTRODUCTION: The future of work is characterized by changes that could disrupt all aspects of the nature and availability of work. Our study aims to understand how the future of work could result in conditions, which contribute to vulnerability for different groups of workers. METHODS: A horizon scan was conducted to systematically identify and synthesize diverse sources of evidence, including academic and gray literature and resources shared over social media. Evidence was synthesized, and trend categories were developed through iterative discussions among the research team. RESULTS: Nine trend categories were uncovered, which included the digital transformation of the economy, artificial intelligence (AI)/machine learning-enhanced automation, AI-enabled human resource management systems, skill requirements for the future of work; globalization 4.0, climate change and the green economy, Gen Zs and the work environment; populism and the future of work, and external shocks to accelerate the changing nature of work. The scan highlighted that some groups of workers may be more likely to experience conditions that contribute to vulnerability, including greater exposure to job displacement or wage depression. The future of work could also create opportunities for labor market engagement. CONCLUSION: The future of work represents an emerging public health concern. Exclusion from the future of work has the potential to widen existing social and health inequities. Thus, tailored supports that are resilient to changes in the nature and availability of work are required for workers facing vulnerability.

Does it matter what your reasons are when deciding to disclose (or not disclose) a disability at work? The association of workers' approach and avoidance goals with perceived positive and negative workplace outcomes.

Deciding whether to disclose a disability to others at work is complex. Many chronic mental and physical health conditions are associated with episodic disability and include times of relative wellness punctuated by intermittent periods of activity limitations. This research draws on the disclosure processes model to examine approach and avoidance disclosure and non-disclosure goals and their association with perceived positive and negative workplace outcomes. Participants were 896 employed individuals (57.7% women) living with a chronic physical or mental health/cognitive condition. They were recruited from an existing national panel and completed an online, cross-sectional survey. Participants were asked about disclosure decisions, reasons for disclosure/non-disclosure, demographic, work context and perceived positive and negative disclosure decision outcomes (e.g., support, stress, lost opportunities). About half the sample (51.2%) had disclosed a disability to their supervisor. Decisions included both approach and avoidance goals. Approach goals (e.g., desire support, want to build trust, maintain the status quo at work) were significantly associated with perceived positive work outcomes regardless of whether a participant disclosed or did not disclose a disability at work, while avoidance goals (e.g., concerns about losing one's job, feeling forced to disclose because others notice a problem) were associated with perceived negative work outcomes. The findings highlight benefits and challenges that workers perceive arise when they choose to disclose or not disclose personal health information. By better understanding disclosure decisions, we can inform organizational health privacy and support gaps to help sustain the employment of people living with disabilities.

Getting the Message Right: Evidence-Based Insights to Improve Organizational Return-to-Work Communication Practices.

Purpose There is an absence of evidence-based guidance to support workplace stakeholders in the effective delivery of return-to-work (RTW) messages. Our study examines the specific RTW communication practices and their impact on the management of work disability. Methods Within two large and complex healthcare organizations, semi-structured interviews were conducted with workplace stakeholders (e.g., supervisors, union representatives, disability management professionals and workers' compensation representatives) and workers who had previously experienced sickness absence related to an occupational injury or illness. For workplace stakeholders interview questions asked about their roles and responsibilities in the RTW process, and specific communication strategies and messages that were used at different phases of the RTW process. For worker participants, interview questions explored RTW experiences and the impact of communication on work re-integration. An interpretative descriptive approach was used to inductively examine themes from interviews to create ways of understanding phenomena that yielded applied findings. Results Forty participants were interviewed including workplace stakeholders and workers. Participants frequently described effective RTW communication as messages that were delivered by a workplace stakeholder that included the content required by an injured worker to navigate the organizational disability management process and utilized specific strategies to address the perceived attitudes and perceptions held by an injured worker regarding work re-integration. Workplace stakeholders described five specific communication strategies including relaying messages of support, optimizing the timing of communication, careful word choice, framing messages, and tailoring communication to the injured worker.  Conclusion RTW communication is an active process that requires a strategic approach. Effective communication practices represent an important strategy for workplace stakeholders to address the barriers held by injured workers and foster early and sustained RTW.

Disclosure, Privacy and Workplace Accommodation of Episodic Disabilities: Organizational Perspectives on Disability Communication-Support Processes to Sustain Employment.

Purpose Employers increasingly are asked to accommodate workers living with physical and mental health conditions that cause episodic disability, where periods of wellness are punctuated by intermittent and often unpredictable activity limitations (e.g., depression, anxiety, arthritis, colitis). Episodic disabilities may be challenging for workplaces which must comply with legislation protecting the privacy of health information while believing they would benefit from personal health details to meet a worker's accommodation needs. This research aimed to understand organizational perspectives on disability communication-support processes. Methods Twenty-seven participants from diverse employment sectors and who had responsibilities for supporting workers living with episodic disabilities (e.g., supervisors, disability managers, union representatives, occupational health representatives, labour lawyers) were interviewed. Five participants also had lived experience of a physical or mental health episodic disability. Participants were recruited through organizational associations, community networks and advertising. Semi-structured interviews and qualitative content analysis framed data collection and analyses, and mapped communication-support processes. Results Seven themes underpinned communication-support process: (1) similarities and differences among physical and mental health episodic disabilities; (2) cultures of workplace support, including contrasting medical and biopsychosocial perspectives; (3) misgivings about others and their role in communication-support processes; (4) that subjective perceptions matter; (5) the inherent complexity of the response process; (6) challenges arising when a worker denies a disability; and (7) casting disability as a performance problem. Conclusions This study identifies a conceptual framework and areas where workplace disability support processes could be enhanced to improve inclusion and the sustainability of employment among workers living with episodic disabilities.

The working disadvantaged: the role of age, job tenure and disability in precarious work.

BACKGROUND: Precarious work is an increasingly common characteristic of industrialized labor markets that can widen health inequities, especially among disadvantaged workforce segments. Study objectives are to compare precarious employment in workers with and without disabilities, and to examine the modifying effect of disability in the relationships between age, job tenure and precarious work. METHODS: Employed Canadians with (n = 901) and without disabilities (n = 901) were surveyed on exposure to precarious working conditions. Information on age and job tenure were collected from respondents along with sociodemographic, health and work context details. Multivariable logistic models examined the association between disability and precarious work. Also, multigroup probit models examined precarious work for young (18-35 yrs), middle-aged (36-50 yrs) and older adults (> 50 yrs) and job tenure and was stratified by participants with and without disabilities. RESULTS: Almost equal proportions of young, middle-aged and older participants were recruited. Mean job tenure of participants was 9.5 years (SD = 9.0). Close to one-third of participants reported working precariously. At the multivariable level, a disability was not associated with working precariously. However, multigroup modelling indicated that disability was a significant effect-modifier. Older adults with a disability had a 1.88 times greater odds of reporting precarious work when compared to young adults (OR = 1.88, 95%CI 1.19, 2.98). When reporting a disability, longer job tenure was related to a 0.95 times lower odds of precarious work (OR = 0.95 95%CI 0.93, 0.98). The relationship between age and job tenure was not significant for those not reporting a disability. DISCUSSION: Precarious work has the potential to affect workers with and without disabilities. For those with a disability, being an older adult and/or a new worker can contribute to a greater likelihood of being employed precariously. Policies and programs can be recommended to address precarious working conditions and related health inequities for people with disabilities based on life and career phase.

Work-focused interventions that promote the labour market transition of young adults with chronic disabling health conditions: a systematic review.

OBJECTIVE: Young adulthood is an important transitional life phase where careers are established. Young adults with chronic disabling health conditions are underrepresented in the labour market. Our study aims to examine the effectiveness of work-focused interventions that support the labour market transition of young adults with chronic disabling health conditions; and to examine whether the effectiveness of work-focused interventions differ across work transition phase (eg, preparation, entry and sustaining work, employment advancement) and disability type. METHODS: A systematic review of articles published between January 1990 and July 2018 was conducted. Medline, EMBASE and PsycInfo were searched, and titles/abstracts and full texts of articles were reviewed for eligibility. Relevant articles were appraised for methodological quality. A best evidence synthesis was applied to medium-quality/high-quality studies to develop recommendations. RESULTS: 5816 articles were identified; 10 articles were relevant and of moderate-high methodological quality. Six intervention categories were identified which focused on young adults with mental health or intellectual/learning disabilities (n=3) and addressed employment preparation (n=10) and/or work entry (n=9). No interventions addressed at-work issues or career advancement. Strong evidence existed for tailored supported employment (SE) interventions having a positive impact on preparation and entry into competitive employment. Also, moderate evidence existed for the positive impact of SE on preparation and entry into competitive employment for young adults with mental health conditions. CONCLUSIONS: Tailored SE is recommended to foster preparation and entry into the labour market. Evidence-based interventions are needed to facilitate sustained work and career advancement of young adults living with different disabling health conditions.

Supporting the Transition into Employment: A Study of Canadian Young Adults Living with Disabilities.

Objective To examine the job accommodation and benefit needs of young adults with disabilities as they transition into employment, and their perceived barriers to meeting support needs. Methods An online survey was conducted of 155 Canadian young adults with disabilities (mean age = 25.8 years). Respondents were either employed or seeking employment, and were asked about their need for health benefits, and soft (e.g., flexible scheduling) and hard accommodations (e.g., ergonomic interventions), and perceived accommodation barriers. Disability characteristics (e.g., disability type), demographic details and work context information were collected. Multivariable logistic analyses were conducted to examine the factors associated with a greater need for health benefits and hard and soft accommodations. Result Participants reported having a physical (79%), psychological (79%) or cognitive/learning disability (77%); 68% had > 1 disability. Over half (55%) were employed. Health benefits and soft accommodations were most needed by participants. Also, an average of six perceived accommodation barriers were indicated; difficulty with disability disclosure was most frequently reported. More perceived accommodation barriers were associated with a greater need for health benefits (OR 1.17, 95% CI 1.04-1.31) and soft accommodations (OR 1.13, 95% CI 1.01-1.27). A psychological disability was a associated with a greater need for health benefits (OR 2.91, 95% CI 1.09-7.43) and soft accommodations (OR 3.83, 95% CI 1.41-10.42). Discussion Employers can support the employment of young adults with disabilities through provision of extended health benefits and soft accommodations. Addressing accommodation barriers could minimize unmet workplace need, and improve employment outcomes for young adults with disabilities as they begin their career and across the life course.

Work Disability Management Communication Bottlenecks Within Large and Complex Public Service Organizations: A Sociotechnical Systems Study.

Purpose Within large and complex organizations work disability (WD) communication bottlenecks emerge and contribute to avoidable disability days. Our study utilized soft systems methods to better understand communication problems in WD management. Methods Semi-structured interviews were conducted with disability case managers (n = 10), frontline supervisors (n = 15) and human resource/labor relations specialists (n = 5) within three public service organizations. Interview questions asked about organizational WD system structure and communication practices. Thematic analysis was conducted to examine system structure and emergent communication bottlenecks. Results WD communication took place across a number of internal and external stakeholders. Communication bottlenecks tended to concentrate within WD case manager and frontline supervisor activities. Inconsistent communication across organizations, challenges interacting with external stakeholders, mental health disability information exchange, lack of WD communication experience and previous worker performance represented communication bottlenecks that contributed to avoidable disability days. Conclusions To strengthen communication practices, systems-focused responses towards organizational WD management are required.

Workplace Social System and Sustained Return-to-Work: A Study of Supervisor and Co-worker Supportiveness and Injury Reaction.

Objective To examine the impact of the social workplace system on sustained return-to-work (SRTW). Methods A random sample of workers' compensation claimants was recruited to complete a survey following claim acceptance (baseline), and 6 months later (time 2). SRTW, at baseline and time 2, was classified as those reporting being back at work for >28 days. Co-worker and supervisor support were assessed using five and seven items, respectively, and total scores were produced. A list of potential supervisory and co-worker reactions were presented to participants who were asked whether the reaction applied to them; response were coded as positive or non-positive. Demographic and injury characteristics, and work context factors were collected. Baseline and at time 2 multivariable models were conducted to examine the impact of supervisory and coworker support and injury reaction on SRTW. Results 551 (baseline) and 403 (time 2) participants from the overall cohort met study eligibility criteria. At baseline, 59% of all participants indicated SRTW; 70% reported SRTW at time 2. Participants reported moderate support from their supervisor (mean = 8.5 ± 3.9; median = 8.2; range = 5-15) and co-workers (mean = 10.2 ± 4.5; median = 10.3; range = 5-25). Over half reported a positive supervisor (59%) or co-worker injury reaction (71%). Multivariable models found that a positive supervisor injury reaction was significantly associated with SRTW at baseline (OR 2.3; 95% CI 1.4-3.9) and time 2 (OR 1.6; 95% CI 1.1-2.3). Conclusions Promoting supervisor positivity towards an injured worker is an important organizational work disability management strategy.

Longitudinal examination of temporality in the association between chronic disease diagnosis and changes in work status and hours worked.

OBJECTIVES: To examine the longitudinal relationship between incidence of diagnosed chronic disease and work status and hours worked. METHODS: A dynamic cohort approach was taken to construct our study sample using the Canadian National Population Health Survey. Participant inclusion criteria included being employed and without a chronic health condition in the survey cycle prior to diagnosis, and participation in consecutive surveys following diagnosis. Each respondent was matched with up to 5 respondents without a diagnosed health condition. The direct and indirect associations between chronic disease and work status and hours worked following diagnosis were examined using probit and linear regression path models. Separate models were developed for arthritis, back problems, diabetes, hypertension and heart disease. RESULTS: We identified 799 observations with a diagnosis of arthritis, 858 with back pain, 178 with diabetes, 569 with hypertension and 163 with heart disease, which met our selection criteria. An examination of total effects at time 1 and time 2 showed that, excluding hypertension, chronic disease diagnosis was related to work loss. The time 2 effect of chronic disease diagnosis on work loss was mediated through time 1 work status. With the exception of heart disease, an incident case of chronic disease was not related to changes in work hours among observations with continuous work participation. CONCLUSIONS: Chronic disease can result in work loss following diagnosis. Research is required to understand how modifying occupational conditions may benefit employment immediately after diagnosis.

Conceptualizing the dynamics of workplace stress: a systems-based study of nursing aides.

BACKGROUND: Workplace stress is a complex phenomenon that may often be dynamic and evolving over time. Traditional linear modeling does not allow representation of recursive feedback loops among the implicated factors. The objective of this study was to develop a multidimensional system dynamics model (SDM) of workplace stress among nursing aides and conduct simulations to illustrate how changes in psychosocial perceptions and workplace factors might influence workplace stress over time. METHODS: Eight key informants with prior experience in a large study of US nursing home workers participated in model building. Participants brainstormed the range of components related to workplace stress. Components were grouped together based on common themes and translated into feedback loops. The SDM was parameterized through key informant insight on the shape and magnitude of the relationship between model components. Model construction was also supported utilizing survey data collected as part of the larger study. All data was entered into the software program, Vensim. Simulations were conducted to examine how adaptations to model components would influence workplace stress. RESULTS: The SDM included perceptions of organizational conditions (e.g., job demands and job control), workplace social support (i.e., managerial and coworker social support), workplace safety, and demands outside of work (i.e. work-family conflict). Each component was part of a reinforcing feedback loop. Simulations exhibited that scenarios with increasing job control and decreasing job demands led to a decline in workplace stress. Within the context of the system, the effects of workplace social support, workplace safety, and work-family conflict were relatively minor. CONCLUSION: SDM methodology offers a unique perspective for researchers and practitioners to view workplace stress as a dynamic process. The portrayal of multiple recursive feedback loops can guide the development of policies and programs within complex organizational contexts with attention both to interactions among causes and avoidance of adverse unintended consequences. While additional research is needed to further test the modeling approach, findings might underscore the need to direct workplace interventions towards changing organizational conditions for nursing aides.

Return-to-Work Within a Complex and Dynamic Organizational Work Disability System.

Background Return-to-work (RTW) within a complex organizational system can be associated with suboptimal outcomes. Purpose To apply a sociotechnical systems perspective to investigate complexity in RTW; to utilize system dynamics modeling (SDM) to examine how feedback relationships between individual, psychosocial, and organizational factors make up the work disability system and influence RTW. Methods SDMs were developed within two companies. Thirty stakeholders including senior managers, and frontline supervisors and workers participated in model building sessions. Participants were asked questions that elicited information about the structure of the work disability system and were translated into feedback loops. To parameterize the model, participants were asked to estimate the shape and magnitude of the relationship between key model components. Data from published literature were also accessed to supplement participant estimates. Data were entered into a model created in the software program Vensim. Simulations were conducted to examine how financial incentives and light duty work disability-related policies, utilized by the participating companies, influenced RTW likelihood and preparedness. Results The SDMs were multidimensional, including individual attitudinal characteristics, health factors, and organizational components. Among the causal pathways uncovered, psychosocial components including workplace social support, supervisor and co-worker pressure, and supervisor-frontline worker communication impacted RTW likelihood and preparedness. Interestingly, SDM simulations showed that work disability-related policies in both companies resulted in a diminishing or opposing impact on RTW preparedness and likelihood. Conclusion SDM provides a novel systems view of RTW. Policy and psychosocial component relationships within the system have important implications for RTW, and may contribute to unanticipated outcomes.