Beyond symptom resolution: insurance case manager's perspective on predicting recovery after motor vehicle crash.

PURPOSE: Insurance company case managers can play a critical role in the rehabilitation process of people with musculoskeletal disorders sustained following minor motor vehicle crash injury due to their interaction with multiple stakeholders and their role in approving various services. This study aimed to identify factors that case managers perceive as predictive of recovery in people with musculoskeletal disorders after minor motor vehicle crash injury. MATERIALS AND METHODS: To explore the perspectives of cases managers in Australia and the United States, semi-structured interviews explored factors that case managers thought provided an early indication of likely recovery outcomes in people with musculoskeletal disorders after minor motor vehicle crash injury. A framework analysis was applied and factors were displayed within the ICF-framework. RESULTS: Case managers (n = 40) demonstrated a broad, detailed understanding of biopsychosocial and contextual issues influencing recovery. They emphasized the importance of the injured worker's expressed affect and motivation, style of communication, the role of lawyers, the worker's family and friends, as well as cultural and geographic influences. The overarching themes perceived as having a major influence on recovery outcomes were general health, pain processing and response, work situation, and compensation entitlement. CONCLUSIONS: Case managers' broad and detailed perceptions about recovery may provide additional, valuable perspectives for professionals involved in the rehabilitation process of people with musculoskeletal disorders after minor motor vehicle crash injury. Further research needs to be conducted to explore the effects of case manager involvement in the process of recovery.Implications for rehabilitationInsurance Case Managers identified multiple factors including affect and motivation, style of communication, the role of lawyers, family and friends, cultural and geographic variation provide opportunities for more effective treatment of people with musculoskeletal disorders related to minor motor vehicle collisions. These managers' perceptions about recovery may be informative to and provide opportunities for health professionals involved in the rehabilitation of people with musculoskeletal disorders related to minor motor vehicle collisions.While the Insurance Case Managers involved in this research did not use formalized assessment techniques, tools and assessment protocols could be developed jointly between for the needs of Insurance Case Managers and other stakeholders to tackle recovery of people with musculoskeletal disorders related to minor motor vehicle collision.

The Relationship Between Work-Disability Duration and Claimant's Expected Time to Return to Work as Recorded by Workers' Compensation Claims Managers.

Purpose This research sought to determine whether there is a relationship between claimants' expected time to return to work (RTW) as recorded by claims managers and compensated days of work disability. Methods We utilized workers' compensation data from a large, United States-based insurance company. RTW expectations were collected within 30 days of the claim being reported and these were compared with the termination of total temporary indemnity payments. Bivariate and hierarchical regression analyses were conducted. Results A significant relationship between expected time to RTW and compensated disability duration was observed. The unadjusted correlation between work-disability duration and expected time to RTW was .25 (p < .001). Our multivariate model explained 29.8 % of the variance, with expected time to RTW explaining an additional 9.5 % of the variance in work-disability duration beyond what was explained by the covariates. Conclusion The current study's findings support the hypothesis that claimant RTW estimates as recorded by claims managers are significantly related to compensated-disability duration, and the relationship is maintained after controlling for variance that can be explained by other variables available within workers' compensation databases.

Work-Related Factors Considered by Sickness-Absent Employees When Estimating Timeframes for Returning to Work.

INTRODUCTION: Work-related factors have been found to be influential in shaping a number of return-to-work outcomes including return-to-work expectations. Based on the idea that work-related factors have the potential for modification through workplace-based initiatives, this study involved a detailed examination of work-related factors referenced by workers as being taken into consideration when estimating timeframes for returning to work. METHODS: Focus groups were conducted with 30 employees, currently off work (≤ 3 months) due to a musculoskeletal condition. During the focus groups, participants wrote and spoke about the factors that they considered when forming their expectations for returning to work. Data were subjected to thematic content analysis. RESULTS: Discussions revealed that participants' considerations tended to differ depending on whether or not they had a job to return to. Those with jobs (n = 23) referenced specific influences such as working relationships, accommodations, physical and practical limitations, as well as concerns about their ability to do their job. Those without a job to return to (n = 7) talked about the ways they would go about finding work, and how long they thought this would take. Both groups mentioned the influence of wanting to find the "right" job, retraining and being limited due to the need for income. CONCLUSION: Findings indicate that employees reference numerous work-related factors when estimating their timeframes for returning to work, and that many of these have been previously identified as relating to other return-to-work outcomes. Findings suggest the potential to improve return-to-work expectation through addressing work-related influences, and helping people work through the tasks they need to complete in order to move forward in the return-to-work process.

Workplace Outcomes in Work-Disability Prevention Research: A Review with Recommendations for Future Research.

Introduction Outcome assessment is a central issue in work disability prevention research. The goal of this paper was to (1) ascertain the most salient workplace outcomes; (2) evaluate the congruence between business and science perspectives; (3) illustrate new perspectives on assessing longitudinal outcomes; and (4) provide recommendations for advancing outcome evaluation in this area of research. Methods The authors participated in a year-long collaboration that culminated in a sponsored 3-day conference, "Improving Research of Employer Practices to Prevent Disability", held October 14-16, 2015, in Hopkinton, MA, USA. The collaboration included a topical review of the literature, group conference calls to identify key areas and challenges, drafting of initial documents, review of industry publications, and a conference presentation that included feedback from peer researchers and a question/answer session with a special panel of knowledge experts with direct employer experience. Results Numerous workplace work-disability prevention outcome measures were identified. Analysis indicated that their applicability varied depending on the type of work disability the worker was experiencing. For those who were working, but with health-related work limitations (Type 1), predominant outcomes were measures of productivity, presenteeism, and work-related limitations. For those who were off work due to a health condition (Type 2), predominant outcomes were measures of time off work, supervisor/employee interactions, and return-to-work (RTW) preparation. For those who had returned to work (Type 3), predominant outcomes were measures of presenteeism, time until RTW, percentage of work resumption, employment characteristics, stigma, work engagement, co-worker interactions, and sustained or durable RTW. For those who had withdrawn from the labor force (Type 4), predominant outcomes were cost and vocational status. Discussion Currently available measures provide a good basis to use more consistent outcomes in disability prevention in the future. The research area would also benefit from more involvement of employers as stakeholders, and multilevel conceptualizations of disability outcomes.

Relationship Between Age, Tenure, and Disability Duration in Persons With Compensated Work-Related Conditions.

OBJECTIVE: The aim of the study was to examine the relationships among age, tenure, and the length of disability following a work-related injury/illness. METHODS: This study utilized 361,754 administrative workers' compensation claims. The relationships between age, tenure, and disability duration was estimated with random-effects models. RESULTS: The age-disability duration relationship was stronger than the tenure-disability duration relationship. An interaction was observed between age and tenure. At younger ages, disability duration varied little based on tenure. In midlife, disability duration was greater for workers with lower tenure than for workers with higher tenure. At the oldest ages, disability duration increased as tenure increased. CONCLUSIONS: Findings indicate that age is a more important factor in disability duration than tenure; however, the relationship between age and disability duration varies based on tenure, suggesting that both age and tenure are important influences in the work-disability process.

An Exploration of the Factors Considered When Forming Expectations for Returning to Work following Sickness Absence Due to a Musculoskeletal Condition.

INTRODUCTION: Workers' own expectations for returning to work following a period of sickness absence have been found to be one of the best predictors of future work status; however, there is a limited understanding of why people expect what they do. The current study was undertaken with the aim of determining what people take into consideration when forming their expectations for returning to work. METHODS: Thirty-four people (8 women, 26 men), who were off work due to a musculoskeletal condition, participated in one of 14 focus groups. Participants were aged 25 to 65 (M = 45, SD = 12.6), and all had been out of work for 3 months or less. RESULTS: All participants reported expecting to return to work, with the most common timeframe being approximately 30 days (Range = 1 day-12 months). When explaining what they thought about when forming their expectations, participants referenced numerous considerations. Much of what was spoken about could be compartmentalized to reflect features of themselves, their condition, or their broader environmental contexts. Participant's subjective experience of these features influenced his or her expectations. Prominent themes included concerns about employability, a desire to get back to normal, no job to go back to, mixed emotions, re-injury concerns, the judgments of workplace stakeholders, being needed by their employer, waiting for input, until the money runs out, and working out what was in their best interest. CONCLUSIONS: Indications are that many of the reported considerations are amenable to intervention, suggesting opportunities to assist workers in the process of returning to work.

Single impacts of keV fullerene ions on free standing graphene: Emission of ions and electrons from confined volume.

We present the first data from individual C60 impacting one to four layer graphene at 25 and 50 keV. Negative secondary ions and electrons emitted in transmission were recorded separately from each impact. The yields for C(n)(-) clusters are above 10% for n ≤ 4, they oscillate with electron affinities and decrease exponentially with n. The result can be explained with the aid of MD simulation as a post-collision process where sufficient vibrational energy is accumulated around the rim of the impact hole for sputtering of carbon clusters. The ionization probability can be estimated by comparing experimental yields of C(n)(-) with those of C(n)(0) from MD simulation, where it increases exponentially with n. The ionization probability can be approximated with ejecta from a thermally excited (3700 K) rim damped by cluster fragmentation and electron detachment. The experimental electron probability distributions are Poisson-like. On average, three electrons of thermal energies are emitted per impact. The thermal excitation model invoked for C(n)(-) emission can also explain the emission of electrons. The interaction of C60 with graphene is fundamentally different from impacts on 3D targets. A key characteristic is the high degree of ionization of the ejecta.

Exploring the relationship between age and tenure with length of disability.

BACKGROUND: The aging of the workforce, coupled with the changing nature of career tenure has raised questions about the impact of these trends on work disability. This study aimed to determine if age and tenure interact in relating to work disability duration. METHODS: Relationships were investigated using random effects models with 239,359 work disability claims occurring between 2008 and 2012. RESULTS: A 17-day difference in the predicted length of disability was observed from ages 25 to 65. Tenure moderated the relationship between age and length of disability. At younger ages, the length of disability decreased as tenure increased, but at older age, the length of disability increased as tenure increased. DISCUSSION: Results indicate that although there is a relationship between length of disability and tenure, age makes a greater unique contribution to explaining variance in length of disability. Future research is needed to better understand why specifically age shows a strong relationship with length of disability and why that relationship varies with age.

Hypervelocity nanoparticle impacts on free-standing graphene: a sui generis mode of sputtering.

The study of the interaction of hypervelocity nano-particles with a 2D material and ultra-thin targets (single layer graphene, multi-layer graphene, and amorphous carbon foils) has been performed using mass selected gold nano-particles produced from a liquid metal ion source. During these impacts, a large number of atoms are ejected from the graphene, corresponding to a hole of ∼60 nm(2). Additionally, for the first time, secondary ions have been observed simultaneously in both the transmission and reflection direction (with respect to the path of the projectile) from a 2D target. The ejected area is much larger than that predicted by molecular dynamic simulations and a large ionization rate is observed. The mass distribution and characteristics of the emitted secondary ions are presented and offer an insight into the process to produce the large hole observed in the graphene.

The importance, measurement and practical implications of worker's expectations for return to work.

PURPOSE: Workers' own expectations for return to work consistently predict work status. To advance the understanding of the relationship between RTW expectations and outcomes, we reviewed existing measures to determine those which we felt were the most likely to capture the construct. METHOD: A comprehensive search of the work-disability rehabilitation literature was undertaken. The review of the measures was conducted in three steps: first, a review of terminology; second, an examination of whether a time reference was included; third, an evaluation of ease of comprehension, and applicability across contexts. RESULTS: A total of 42 different measures were identified. One of the most striking findings was the inconsistency in terminology. Measures were also limited by not including a time reference. Problems were also identified with regards to ease of understanding, utility of response options, and applicability in a wide variety of research and applied settings. CONCLUSIONS: Most previously used measures contain elements that potentially limit utility. However, it would seem that further development can overcome these, resulting in a tool that provides risk prediction information, and an opportunity to start a conversation to help identify problems that might negatively impact a worker's movement through the RTW process and the outcomes achieved. Implications for Rehabilitation Return to work is an integral part of workplace injury management. The capture of RTW expectations affords a way to identify the potential for less than optimal RTW processes and outcomes. A mismatch between an injured worker's expectations and what other stakeholders might expect suggests that efforts could be made to determine what is causing the injured worker's concerns. Once underling issues are identified, work can be put into resolving these so that the worker's return to the workplace is not impeded.

Returning to work following low back pain: towards a model of individual psychosocial factors.

PURPOSE: The aim of this paper is to develop and test a model of direct and indirect relationships among individual psychosocial predictors of return-to-work (RTW) outcomes following the onset of low back pain (LBP). METHODS: We utilize secondary analysis of a larger study of adults seeking treatment for work-related LBP with recent onset. In total, 241 participants who completed a baseline survey, a short follow-up survey, and a longer follow-up survey after 3 months were included in our analyses. The participants were required to have LBP with onset of less than 14 days, be 18 years or older, and be fluent in English or Spanish. The analyses utilized structural equation models to test the direct and indirect relationships among the variables and RTW outcomes at 3 months. RESULTS: Our results indicated a good fit for our model (χ2 = 69.59, df = 45, p < .05; RMSEA = .05; CFI = .95; WRMR = .61). Pain, catastrophizing, fear-avoidance beliefs, organizational support, and RTW confidence were all found to have indirect relationships with the outcomes. RTW confidence and RTW expectations were found to have direct relationships with the outcomes. CONCLUSIONS: The process of returning to work after an episode of LBP is a complex process involving many interrelated factors. Understanding the relationships among critical individual factors in the RTW process may be important for the treatment and rehabilitation of those with LBP. Results suggest that if injured workers are struggling with fear avoidance, pain catastrophizing and confidence issues, they might benefit from the application of cognitive behavioral therapy techniques.

An exploration of alternative methods for assessing return-to-work success following occupational injury.

PURPOSE: To explore alternative methods for assessing return-to-work success. METHOD: This exploratory study employed a prospective design. Participants (N = 150) were all vocational rehabilitation recipients who sustained a work-related injury that resulted in them being off work for at least 6 months, and were unable to return to their pre-injury position. At baseline (B), all were reported to have found post-injury employment. Qualitative features of the participants' post-injury employment were assessed at the time of initial interview (T1), which was conducted a mean of approximately one year following the participants' scheduled workplace re-entry (mean 344 days). Participants' T1 employment characteristics were then compared to their outcomes at the time of follow-up (T2), which was approximately 3 months later (mean 85 days). RESULTS: Findings indicate that 25% of participants were not in their baseline jobs at the time of last contact; some were in different jobs, however others were not working. At T1 many of those working reported experiencing difficulties. Comparisons revealed significant relationships between problem indicators at T1 and employment outcomes at T2, with significant problem indicators including worries that symptoms might interfere with their ability to continue in the job, difficulties with the job's physical demands and a strong desire to leave their current job. When problem indicators were used in combination, stronger relationships were observed and self-assessed performance contributed to the effect. CONCLUSIONS: Results add support to the contention that rather than a single event, RTW is an evolving, complex and sometimes nonlinear process. This should be kept in mind when assessing the success of an injured worker's RTW.

Recurrence of work-related low back pain and disability: association between self-report and workers' compensation data.

STUDY DESIGN: Retrospective cohort. OBJECTIVE: To explore the ability to capture low back pain (LBP) recurrence using wage-replacement (WR) data. SUMMARY OF BACKGROUND DATA: LBP can be a recurrent, fluctuating, and disabling condition. Because of its largely nonspecific and subjective nature, the condition poses challenges for research and clinical management, as speaking directly with the affected individuals is not always practical. Little information is available on how indicators of LBP recurrence that can be extracted from administrative databases relate to patients' self-report. METHODS: Participants with a compensated claim for work-related LBP (N = 90) were interviewed regarding their LBP-related experiences after their initial return to work. Interview data were compared with WR data, which was provided by the participants' workers' compensation provider. RESULTS: Concordance was observed between WR-based indicators and self-reports of additional time off due to LBP. The best performing WR-based indicator reflected a payment history that began with more than 7 consecutive days of initial WR payments, followed by a gap in WR payments of more than 7 consecutive days, followed by another WR payment period of more than 7 consecutive days (sensitivity = 55%, specificity = 73%, overall accuracy = 69%). Although concordance was observed between the 2 measures of additional time off, the best performing WR indicator was not related to participants' other self-reports of post-return-to-work LBP recurrence which included LBP being significantly worse usual; LBP experiences; seeking health care for LBP; and the experience of difficulties related to the back condition. CONCLUSION: Results indicate that compensation data can be used to capture what a claimant would self-report as additional time off after their initial return to work due to their LBP condition. However, the use of self-report recurrence indicators is recommended if there is a desire to capture a fuller extent of workers' ongoing pain and/or disability experiences. LEVEL OF EVIDENCE: N/A.

What is return to work? An investigation into the quantification of return to work.

PURPOSE: To describe and demonstrate issues with return to work (RTW) outcome metrics in common use among clinical researchers and injury compensation organisations. We also aim to describe a framework on which to capture relevant RTW information including current employment status and data on participation and maintenance. METHODS: Structured telephone interviews discussing participant health and vocational status were conducted following compensable transport-related injury. Participants who were working at the time of injury and took time off work because of their injuries (N = 414) were asked questions relating to their work participation and maintenance, including length of continuous employment, hours worked and duties performed before and after injury. A series of RTW metrics was developed and applied to survey data. Rates of RTW according to each metric were calculated. RESULTS: Eighty-four per cent of participants had achieved some employment since their injury, and 74% were working at the time of the survey. In contrast, only 58% of participants were working the same hours as prior to their injury and had been doing so for at least 3 months. These data show that different impressions of rehabilitative success can be obtained depending on the criterion used to define RTW suggesting that reliance on a single RTW index (e.g. 'are you currently working?') will not represent important characteristics of employment. CONCLUSION: A multi-layered approach to measuring RTW that includes data on reasons for not working, length of continuous employment, hours and duties performed after injury provides greater insight into the vocational status of injured individuals compared to single metrics or outcomes that fail to capture key detail on motives and participation. This information can assist clinicians to more accurately monitor the progress of rehabilitation following injury and compensation schemes to more effectively monitor their performance.

Are we making progress?: the tenth international forum for primary care research on low back pain.

STUDY DESIGN: Synthesis and analysis of presentation and discussion highlights, with a focus on emerging trends and promising new directions in primary care research on low back pain (LBP). OBJECTIVE: To present a summary of findings, themes, and insights from the Tenth International Forum on Primary Care Research on Low Back Pain, a meeting of researchers designed to share the latest concepts, methods, and results of research on LBP diagnosis, treatment, and disability prevention. SUMMARY OF BACKGROUND DATA: Earlier Forum meetings have developed several common themes and general conclusions. These are contrasted with the presentations and discussions at the 10th International Forum. RESULTS: Major themes included concerns about the epidemic of chronic, disabling LBP, associated treatments, iatrogenesis, and the "LBP medical industrial complex"; the variability and complexity of outcomes and how their importance differed across patients in defining recovery and recurrence; the power of nonspecific effects, expectations, and therapeutic alliance; and the challenges of identifying important therapeutic subgroups. New research addressed early risk factor screening and linked intervention, nonmedical approaches to reframe the LBP problem and avoid unnecessary care, cognitive and behavioral aspects of LBP, and ways to train clinicians to implement these innovations. More appropriate use of longitudinal designs and a greater focus on implementation research was called for. CONCLUSION: Although the field of primary care LBP research often seems to progress slowly, the Forum highlighted several important, promising developments that could substantially improve LBP research and primary care practice.

Workers' perspectives on low back pain recurrence: "it comes and goes and comes and goes, but it's always there".

Although various measures of low back pain (LBP) recurrence have been proposed, none have been tested to determine if they are consistent with what those with LBP perceive a "recurrence" to be. To further the understanding of LBP recurrence and how to measure it, we examined how individuals with a history of LBP describe their back pain experiences. A qualitative approach was chosen and six mixed-gender focus groups were conducted. Discussions were facilitated by two researchers and structured around predetermined questions. All four authors were involved in the data analysis and thematic congruence was achieved through an iterative process of coding and discussion. Participants included 31 individuals (14 female, 17 male), with ages ranging from early 20s to mid 70s. When asked about LBP recurrence, participants had difficulty understanding the concept. There was a sense that, although the pain may disappear, the condition was always there. Three states were defined: "normal," "flared-up," and "attack." "Normal" could include experiencing pain, but generally represented a tolerable state. "Flared-up" was associated with increased pain, the use of strategies to overcome difficulties, and modified participation. "Attack" state was described as severely disabled: "I just have to lay there." Participants described their experiences in a way that is consistent with the idea that LBP is a fluctuating and disabling health condition. Results cast doubt on the validity of currently available measures of LBP recurrence. Focusing on recurrence of pain without consideration of broader contextual factors will result in an incomplete understanding of the meaning of the pain experience.

Return to work following disabling occupational injury--facilitators of employment continuation.

OBJECTIVE: Return to work following occupational injury is an important rehabilitation milestone; however, it does not mark the end of the return-to-work process. Following a return to the workplace, workers can experience difficulties that compromise their rehabilitation gains. Although there has been investigation of factors related to a return to the workplace, little attention has been paid to understanding what facilitates continued return-to-work success as this paper aims to do. METHODS: This study used data gathered during one-on-one telephone interviews with 146 people who experienced a work-related injury that resulted in their being unable to return to their pre-injury job, but who returned to work following an extended period of absence and the receipt of vocational services. RESULTS: Numerous return-to-work facilitators were reported, including features of the workers' environmental and personal contexts, as well as body function, activities, and participation. Influences that stood out included a perception that the work was appropriate, supportive workplace relationships, and a sense of satisfaction/achievement associated with being at work. CONCLUSIONS: The findings support the contention that initiatives aimed at improving return-to-work outcomes can go beyond the removal of barriers to include interventions to circumvent difficulties before they are encountered. Together with providing ideas for interventions, the study's findings offer an insight into research and theoretical development that might be undertaken to further the understanding of the return-to-work process and the factors that impact upon it.

Employment maintenance and the factors that impact it after vocational rehabilitation and return to work.

PURPOSE: To determine post-return-to-work disability and functioning amongst occupationally injured workers and to test the extent to which demographic and other variables relate to employment maintenance. In addition, the project sought to document what workers believe determined their work continuation. METHOD: Semi-structured in-depth interviews were conducted to inquire about participant's (N = 150) post-vocational rehabilitation return-to-work experiences. Results were interpreted using the health and health-related domains from the International Classification of Functioning, Disability and Health. RESULTS: Although most participants were working at the time of interview, almost all were experiencing functional- or activity-based restrictions. Factors differentiating those employed from those not, were largely contextual and included relationships with supervisors, economic climate, and working conditions. CONCLUSIONS: The findings stress the importance of considering environmental strains when planning return to work and indicate ways to assist workers to achieve return-to-work success.

Return-to-work experiences: prior to receiving vocational services.

PURPOSE: Injured workers can experience a myriad of difficulties while attempting workplace reintegration and, in some cases, problems encountered result in workers being unable to take up employment opportunities and/or maintain employment gains. This project aimed to discover what injured workers report as being the reason for their not pursuing and/or leaving post-injury work opportunities. METHODS: Semi-structured interviews inquiring about participant's (N = 150) return-to-work experiences following an occupational injury resulting in an impairment that limited their ability to perform their past work. RESULTS: Findings indicate that although reasons cited for the loss of employment gains included physiological body function, the ability to perform work-related tasks and actions and personal factors, the most commonly referenced barriers by far were environmental in nature. Depending on where the worker was within the return-to-work process, the regularity with which each of the types of environmental factors was mentioned varied considerably. CONCLUSIONS: The finding that environmental factors are considered the most common stumbling blocks is positive in that these are arguably some of the most amenable to intervention.