Return to work after injury: a review of evidence regarding expectations and injury perceptions, and their influence on outcome

The role of pain expectancy and its confidence in placebo hypoalgesia and nocebo hyperalgesia

ABSTRACT

Placebo hypoalgesia and nocebo hyperalgesia, which exemplify the impact of expectations on pain, have recently been conceptualised as Bayesian inferential processes, yet empirical evidence remains limited. Here, we explore whether these phenomena can be unified within the same Bayesian framework by testing the predictive role of expectations and their level of precision (ie, expectation confidence) on pain, with both predictors measured at the metacognitive level. Sixty healthy volunteers underwent a pain test (ie, 8 noxious electrical stimuli) before (Baseline) and after (T0, T1, T2) receiving a sham treatment associated with hypoalgesic (placebo), hyperalgesic (nocebo), or neutral (control) verbal suggestions, depending on group allocation. Trial-by-trial expectations, their precision, and perceived pain were measured. Skin conductance response (SCR) was also recorded as an autonomic response marker. Bayesian linear mixed models analyses revealed that, for both placebo and nocebo, pain was predicted by expectations alone and by their interaction with expectations precision. In addition, the discrepancy between expected and perceived pain was predicted by expectation precision, with greater alignment between expected and perceived pain when precision was higher. This suggests that both placebo and nocebo responses are well described from a Bayesian perspective. A main effect of time for SCR was observed, suggesting habituation to painful stimuli. Our data provide evidence indicating that both placebo hypoalgesia and nocebo hyperalgesia can be unified within the same Bayesian framework in which not only expectations but also their level of precision, both measured at the metacognitive level, are key determinants of the pain inferential process.

Operative Versus Nonoperative Management of High-Grade Acromioclavicular Injuries: A Systematic Review and Meta-Analysis

This meta-analysis investigated differences between operative and nonoperative management for functional, as well as radiological, outcomes in Rockwood III-V acromioclavicular (AC) injuries. A literature search of several databases was conducted including Elsevier, Cumulative Index of Nursing and Allied Health Literature (CINAHL), PubMed, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, Scopus, and Web of Science from inception to May 28, 2024. Included studies reported patients older than 16 years with a diagnosis of AC joint (ACJ) injury of Rockwood grade III or higher. This review was registered in PROSPERO (ID: CRD42023431602). Thirteen studies met the eligibility criteria (n = 729) of patients receiving either operative or nonoperative treatment for acute AC injuries. At 24-48 months follow-up, constant score outcomes favored the operative group compared to the nonoperative group (MD = 2.38, 95% CI: 0.14, 4.62; I2 = 66%). Radiological outcomes were in favor of the operative group such that the ACJ width was narrower (MD = -5.60, 95% CI: -6.67, -4.54; I2 = 11%), and the incidence of ACJ dislocations/subluxation was less compared to the nonoperative group (OR = 0.01, 95% CI: 0.00, 0.07; I2 = 0%). More patients in the nonoperative group had "good" subjective evaluation of results compared to the operative group (OR = 0.55, 95% CI: 0.33, 0.90; I2 = 80%). There were 54 (18.3%) complications in the operative group. On the other hand, there were 39 (15.9%) adverse events in the nonoperative group. Operative management of Rockwood III-V AC injuries appears to confer greater functional and radiological patient outcomes. Further long-term research is required to elucidate whether this remains longitudinally, with specific investigation for individual Rockwood grading.

Preoperative and Postoperative Kinesiophobia Influences Postoperative Outcome Measures Following Anterior Cruciate Ligament Reconstruction: A Prospective Study

The anterior cruciate ligament (ACL) is the most injured ligament of the knee, and the treatment of choice is usually ACL reconstruction. Kinesiophobia refers to an irrational and paralyzing fear of movement caused by the feeling of being prone to injury or reinjury. The aim of the present study is to evaluate the relationship between preoperative and postoperative kinesiophobia with postoperative outcomes of ACL-R evaluated through SF-36, ACL-RSI, KOOS, and OKS scores. Included patients all underwent ACL reconstruction. The preoperative TSK-13 questionnaire and six-month postoperative TSK-13, ACL-RSI, SF-36, KOOS, and OKS questionnaires were assessed in included patients. Normal distribution was assessed using the Shapiro-Wilk test. The study included 50 patients who filled out the questionnaires at the 6-month postoperative follow-up. Correlations between preoperative TSK-13 and postoperative outcome measures revealed a low-moderate negative correlation between preoperative TSK-13 and SF-36 PCS at 6-month follow-up. Correlations between postoperative TSK-13 and postoperative outcome measures revealed a high negative correlation between preoperative TSK-13 and ACL-RSI, KOOS Symptoms, KOOS Pain, KOOS ADL, and OKS at 6-month follow-up. Preoperative and postoperative kinesiophobia were found to influence postoperative ACL-R outcomes negatively, more specifically an increase in kinesiophobia showed a statistically significant correlation with worse postoperative SF-36 PCS scores in patients.

Recovery expectations can be assessed with single-item measures: findings of a systematic review and meta-analysis on the role of recovery expectations on return-to-work outcomes after musculoskeletal pain conditions

ABSTRACT

The objective of this systematic review is to quantify the association between recovery expectations and return-to-work outcomes in adults with musculoskeletal pain conditions. In addition, this review has the second objective to compare the predictive utility of single-item and multi-item recovery expectation scales on return-to-work outcomes. Relevant articles were selected from Embase, PsycINFO, PubMed, Cochrane, and manual searches. Studies that assessed recovery expectations as predictors of return-to-work outcomes in adults with musculoskeletal pain conditions were eligible. Data were extracted on study characteristics, recovery expectations, return-to-work outcomes, and the quantitative association between recovery expectations and return-to-work outcomes. Risk of bias was assessed using the Effective Public Health Practice Project. Odds ratios were pooled to examine the effects of recovery expectations on return-to-work outcomes. Chi-square analyses compared the predictive utility of single-item and multi-item recovery expectation scales on return-to-work outcomes. Thirty studies on a total of 28,741 individuals with musculoskeletal pain conditions were included in this review. The odds of being work disabled at follow-up were twice as high in individuals with low recovery expectations (OR = 2.06 [95% CI 1.20-2.92] P < 0.001). Analyses also revealed no significant differences in the predictive value of validated and nonvalidated single-item measures of recovery expectations on work disability (χ 2 = 1.68, P = 0.19). There is strong evidence that recovery expectations are associated with return-to-work outcomes. The results suggest that single-item measures of recovery expectations can validly be used to predict return-to-work outcomes in individuals with musculoskeletal pain conditions.

Tutorial: The Speech-Language Pathologist's Role in Return to Work for Adults With Traumatic Brain Injury

PURPOSE

Return to work (RTW) is a major life participation metric used for persons with a traumatic brain injury (TBI). Speech-language pathologists (SLPs) have clinical expertise in the cognitive-communication aspects of TBI. This clinical focus article aims to support the clinical practice of SLPs by summarizing key interprofessional vocational rehabilitation (VR) models and illustrating the role of the SLP throughout the RTW process with a case study.

METHOD

This clinical focus article was written by the Academy of Neurologic Communication Disorders and Sciences TBI Research Group along with a VR expert. Authors engaged in deliberative, agenda-based discussions beginning with a literature review based on previous systematic studies. Discussions explored relevant VR and SLP practices.

RESULTS

This clinical focus article presents key VR models in parallel with SLP assessment and treatment to illustrate best practice patterns in an RTW field with a dearth of SLP-specific literature. We summarize general VR approaches and four evidence-supported VR models for adults with TBI. We highlight how a model of interprofessional assessment can assist with planning and communication of important work-related concerns. We illustrate how the chronological model of work return can assist with developing goals and planning treatment.

CONCLUSIONS

SLPs play an important role in identifying, managing, and collaborating with an RTW team following TBI. A working knowledge of VR models can assist with improving the dialogue between SLPs and VR professionals and can inform practice when working with persons with TBI who have work return as a goal.

A patient expectations questionnaire for determining criteria for entrustment decisions

INTRODUCTION

To train health professionals for patient-centered care, patient engagement in medical curriculum development and assessment is widely recommended. But there are few published methods on how to consult with patients effectively, particularly when creating entrustable professional activities (EPAs). In this mixed-method study, we developed a questionnaire for facilitating patient input when developing EPA assessment criteria.

METHODS

We developed a questionnaire for documenting patient expectations of their doctors which included: patient interviews to identify questionnaire items, expert validation, cognitive interviews with respondents, and finally, pilot testing. For the pilot testing, 87 participants with a variety of health problems from medical/surgical wards and outpatient clinics at a tertiary hospital were recruited. The final questionnaire included open-ended and ranking-style questions.

RESULTS

Using the questionnaire, patients could identify their key expectations of their doctors when managing their current medical problem. Most patients wrote clear, brief free-text responses directly applicable to EPA descriptors that were time-efficient to analyze.

CONCLUSIONS

The questionnaire is a feasible method of recording patient expectations, enabling educators to consult with and include patient perspectives when developing criteria for entrustment decisions in a diverse range of clinical contexts.

Search methods for prognostic factor systematic reviews: a methodologic investigation

Objective

This study retroactively investigated the search used in a 2019 review by Hayden et al., one of the first systematic reviews of prognostic factors that was published in the Cochrane Library. The review was designed to address recognized weaknesses in reviews of prognosis by using multiple supplementary search methods in addition to traditional electronic database searching.

Methods

The authors used four approaches to comprehensively assess aspects of systematic review literature searching for prognostic factor studies: (1) comparison of search recall of broad versus focused electronic search strategies, (2) linking of search methods of origin for eligible studies, (3) analysis of impact of supplementary search methods on meta-analysis conclusions, and (4) analysis of prognosis filter performance.

Results

The review's focused electronic search strategy resulted in a 91% reduction in recall, compared to a broader version. Had the team relied on the focused search strategy without using supplementary search methods, they would have missed 23 of 58 eligible studies that were indexed in MEDLINE; additionally, the number of included studies in 2 of the review's primary outcome meta-analyses would have changed. Using a broader strategy without supplementary searches would still have missed 5 studies. The prognosis filter used in the review demonstrated the highest sensitivity of any of the filters tested.

Conclusions

Our study results support recommendations for supplementary search methods made by prominent systematic review methodologists. Leaving out any supplemental search methods would have resulted in missed studies, and these omissions would not have been prevented by using a broader search strategy or any of the other prognosis filters tested.

Medically graded reduced capacity to work (RCW) following significant injury as explained by patient related outcome measures (PROMs) - A prospective trauma center evaluation

BACKGROUND

Data is limited how well patient-reported longer-term outcome measures (PROMs) explain medically graded reduced capacity for work (RCW).

OBJECTIVE

This prospective study investigates the association of RCW with several PROMs in addition to demographic and injury-related variables in significantly injured of working age.

METHODS

Patients (New Injury Severity Score, NISS ≥ 8) were recruited consecutively. RCW, as registered by the largest Swiss accident insurer, was tested against demographic, trauma and treatment characteristics, and patients' contemporaneous two year rating of functional outcome and quality of life following trauma with measures such as the Short-Form (SF)-36 or Trauma Outcome Profile (TOP), using uni- and multivariable analysis.

RESULTS

140 patients (mean 42 years, 2-year RCW rate 21%) participated in the longer-term follow-up of self-rated outcome. In multivariable analysis, all investigated baseline factors together accounted for 48% of the variance explaining 2-year postinjury RCW with 31% contributed by demographic, injury or treatment related variables, and 17% by patients' condition at hospital discharge. Patients' self-rated longer-term outcome provided 61% of the information on concurrent RCW, whereby 53% identified worsening of physical function (SF-36) and additional 8% constraints in daily activities (TOP). Four variables (Glasgow Outcome Scale at the time of hospital discharge and SF-36 physical functioning, TOP daily activities, SF-36 role physical at two years) explained 71% of RCW, corresponding to an area under the curve (AUC) of 0.95.

CONCLUSIONS

Objectively graded RCW 2 years after injury was found to be well explained by the combined information of patients' subjective longer-term outcome together with basic patient, trauma and treatment characteristics.

Returning to work or working on one's rehabilitation: Social identities invoked by impaired workers and professionals in health care and employment services

For persons with a long-term illness or impairment, return-to-work decisions involve considerations about work capacity, opportunities in the labour market, the impact of injuries, further treatment requirements, physical and cognitive rehabilitation, and mental health recovery. These considerations are undertaken by the affected individuals as well as by professionals in health care and employment services. Drawing upon institutional theories of organisations, especially the understanding that institutional logics provide different social identities to injured individuals, we study rehabilitation processes following multi-trauma or traumatic brain injury (TBI) within the Scandinavian welfare model. We identify which social identities are activated in professionals' considerations and in the stories of the injured individuals. The aim is to understand how professionals' reasoning about the clients' problems influences return-to-work processes. Our primary finding is that the wageworker identity, invoked by the injured individuals themselves, is subordinated by the professionals to the logic of profession and the associated patient identity. Consequently, not only is impaired people's anti-discrimination right to reasonably adjusted work ignored, ignored is also a possible resource in the rehabilitation process. Additionally, individuals who view themselves as wageworkers tend to be left unserved.

Can Patient Expectations of Returning to Work Documented Before, During, or at the End of Treatment Predict Actual Return to Work Post-treatment? An Evidence-Based Structured Systematic Review

BACKGROUND

There is significant evidence that patient expectations can impact their treatment outcomes. The hypothesis of this systematic review was then the following. There will be significant consistent evidence as specified by the Agency for Health Care Policy and Research (AHCPR) guidelines that chronic pain patient (CPP) expectations for returning to work documented before, during, or at the end of treatment will predict actual return to work post-treatment.

METHODS

Of 316 references, 12 studies fulfilled inclusion criteria. These studies analyzed expectations of returning to work documented before, during, or at the end of treatment and utilized these for predicting return to work post-treatment. Relevant aspects of these studies were abstracted into tabular form for numerical analysis. All studies were rated independently by two reviewers for quality. The percentage of the 12 studies supporting the hypothesis was determined. This was then utilized to determine an AHCPR guideline rating for consistency.

RESULTS

No studies had a rejection quality score. All studies were type 4. The hypothesis was supported by 91.6% of the studies. According to the AHCPR guidelines, this translated into an A rating: consistent findings from multiple type 4 studies.

CONCLUSIONS

CPP expectations of returning to work as documented before, during, or at the end of treatment may predict actual return to work post-treatment.

Development of the generic, multidimensional Treatment Expectation Questionnaire (TEX-Q) through systematic literature review, expert surveys and qualitative interviews

OBJECTIVE

Patients' expectations-as a central mechanism of placebo and nocebo effects-are an important predictor of health outcomes. However, the lack of a way to assess expectations across different settings restricts progress in understanding the role of expectations and to quantify their importance in medical and psychological treatments. The aim of this study was to develop a theory-based, generic, multidimensional measure assessing patient expectations of medical and psychological treatments.

DESIGN

The Treatment Expectation Questionnaire (TEX-Q) was developed based on the integrative model of expectations and a systematic literature review of treatment expectation scales. After creating a comprehensive item pool, the scale was further refined by use of expert ratings and patient interviews.

SETTING

Patients were recruited in primary care at two hospitals in Hamburg, Germany.

PARTICIPANTS

13 scientific experts participated in the expert survey. 11 patients waiting for psychological or surgical treatments participated in the qualitative interviews.

RESULTS

The 2×2×2 multidimensional structure of the TEX-Q assesses two expectation constructs (probabilistic vs value-based) across two outcome domains with two valences (direct benefits and adverse events, broader positive and negative impact), plus process and behavioural control expectations. We examined 583 items from 38 scales identified in the systematic review and developed 78 initial items. Content validity was then rated by experts according to item fit and comprehensibility. The best 53 items were further evaluated for comprehensibility, acceptability, phrasing preference and understanding by interviewing patients prior to treatment using the 'think aloud' technique. This resulted in a first 35-item version of the TEX-Q.

CONCLUSIONS

The TEX-Q is a generic, multidimensional measure to assess patient expectations of medical and psychological treatments and allows comparison of the impact of multidimensional expectations across different conditions. The final TEX-Q will be available after psychometric validation.

Understanding Patient Expectations of Health Care: A Qualitative Study

Understanding and measuring patient expectations of health care is central to improving patient satisfaction and delivering patient-centered care. However, most empiric research in this field has focused on measuring patient expectations for specific diseases only. Patient expectations common to a variety of settings and clinical contexts need to be better understood to design measures with wider utility. We aimed to understand how patients express and conceptualize their expectations of health care across a range of clinical contexts and conditions. Semi-structured interviews were conducted with patients presenting to a major metropolitan hospital, informed by interpretive phenomenological analysis. Sampling continued until thematic saturation. Interview topics explored the illness experience, interactions with clinicians, how patients communicated and conceptualized their expectations of health care, and the nature of these expectations. The 26 participants conceptualized and described their expectations in 3 distinct domains: (1) health outcomes, (2) individual clinicians, and (3) the health-care system. Importantly, these domains were consistent across a variety of clinical contexts, participant demographics, and medical conditions. Despite variation in expectations due to individual patient circumstances, we identified 3 conceptual domains within which expectations consistently lie. When designing measurement tools for patient expectations, we suggest incorporating questions specifically addressing the 3 domains we have identified. With such measures, clinicians and health-care providers can be empowered to provide and monitor patient-centered care with outcomes tailored to what patients desire.

Let's talk about pain catastrophizing measures: an item content analysis

BACKGROUND

Concerns have been raised about whether self-report measures of pain catastrophizing reflect the construct as defined in the cognitive-behavioral literature. We investigated the content of these self-report measures; that is, whether items assess the construct 'pain catastrophizing' and not other theoretical constructs (i.e., related constructs or pain outcomes) using the discriminant content validity method.

METHOD

Items (n = 58) of six pain catastrophizing measures were complemented with items (n = 34) from questionnaires measuring pain-related worrying, vigilance, pain severity, distress, and disability. Via an online survey, 94 participants rated to what extent each item was relevant for assessing pain catastrophizing, defined as "to view or present pain or pain-related problems as considerably worse than they actually are" and other relevant constructs (pain-related worrying, vigilance, pain severity, distress, and disability).

RESULTS

Data were analyzed using Bayesian hierarchical models. The results revealed that the items from pain-related worrying, vigilance, pain severity, distress, and disability questionnaires were distinctively related to their respective constructs. This was not observed for the items from the pain catastrophizing questionnaires. The content of the pain catastrophizing measures was equally well, or even better, captured by pain-related worrying or pain-related distress.

CONCLUSION

Based upon current findings, a recommendation may be to develop a novel pain catastrophizing questionnaire. However, we argue that pain catastrophizing cannot be assessed by self-report questionnaires. Pain catastrophizing requires contextual information, and expert judgment, which cannot be provided by self-report questionnaires. We argue for a person-centered approach, and propose to rename 'pain catastrophizing' measures in line with what is better measured: 'pain-related worrying'.

Individual recovery expectations and prognosis of outcomes in non-specific low back pain: prognostic factor review

BACKGROUND

Low back pain is costly and disabling. Prognostic factor evidence can help healthcare providers and patients understand likely prognosis, inform the development of prediction models to identify subgroups, and may inform new treatment strategies. Recent studies have suggested that people who have poor expectations for recovery experience more back pain disability, but study results have differed.

OBJECTIVES

To synthesise evidence on the association between recovery expectations and disability outcomes in adults with low back pain, and explore sources of heterogeneity.

SEARCH METHODS

The search strategy included broad and focused electronic searches of MEDLINE, Embase, CINAHL, and PsycINFO to 12 March 2019, reference list searches of relevant reviews and included studies, and citation searches of relevant expectation measurement tools.

SELECTION CRITERIA

We included low back pain prognosis studies from any setting assessing general, self-efficacy, and treatment expectations (measured dichotomously and continuously on a 0 - 10 scale), and their association with work participation, clinically important recovery, functional limitations, or pain intensity outcomes at short (3 months), medium (6 months), long (12 months), and very long (> 16 months) follow-up.

DATA COLLECTION AND ANALYSIS

We extracted study characteristics and all reported estimates of unadjusted and adjusted associations between expectations and related outcomes. Two review authors independently assessed risks of bias using the Quality in Prognosis Studies (QUIPS) tool. We conducted narrative syntheses and meta-analyses when appropriate unadjusted or adjusted estimates were available. Two review authors independently graded and reported the overall quality of evidence.

MAIN RESULTS

We screened 4635 unique citations to include 60 studies (30,530 participants). Thirty-five studies were conducted in Europe, 21 in North America, and four in Australia. Study populations were mostly chronic (37%), from healthcare (62%) or occupational settings (26%). General expectation was the most common type of recovery expectation measured (70%); 16 studies measured more than one type of expectation. Usable data for syntheses were available for 52 studies (87% of studies; 28,885 participants). We found moderate-quality evidence that positive recovery expectations are strongly associated with better work participation (narrative synthesis: 21 studies; meta-analysis: 12 studies, 4777 participants: odds ratio (OR) 2.43, 95% confidence interval (CI) 1.64 to 3.62), and low-quality evidence for clinically important recovery outcomes (narrative synthesis: 12 studies; meta-analysis: 5 studies, 1820 participants: OR 1.89, 95% CI 1.49 to 2.41), both at follow-up times closest to 12 months, using adjusted data. The association of recovery expectations with other outcomes of interest, including functional limitations (narrative synthesis: 10 studies; meta-analysis: 3 studies, 1435 participants: OR 1.40, 95% CI 0.85 to 2.31) and pain intensity (narrative synthesis: 9 studies; meta-analysis: 3 studies, 1555 participants: OR 1.15, 95% CI 1.08 to 1.23) outcomes at follow-up times closest to 12 months using adjusted data, is less certain, achieving very low- and low-quality evidence, respectively. No studies reported statistically significant or clinically important negative associations between recovery expectations and any low back pain outcome.

AUTHORS' CONCLUSIONS

We found that individual recovery expectations are probably strongly associated with future work participation (moderate-quality evidence) and may be associated with clinically important recovery outcomes (low-quality evidence). The association of recovery expectations with other outcomes of interest is less certain. Our findings suggest that recovery expectations should be considered in future studies, to improve prognosis and management of low back pain.

Differences Over Time in the Prognostic Effect of Return to Work Self-Efficacy on a Sustained Return to Work

Purpose This study investigated the association between return to work self-efficacy (RTW-SE) and sustained return to work (RTW) at two different time points, over a 12-month period. The primary objective of the study was to examine if the relationship between RTW-SE and a sustained RTW changed over the RTW timeline. Methods This study used survey responses from a longitudinal cohort of n = 410 workers' compensation claimants with either an upper-body musculoskeletal injury or a psychological injury. A path analysis tested the associations between RTW-SE and a sustained RTW at two time-points. A Wald χ² test compared nested models to determine if the association changed over time. Results RTW-SE measured at time- point 1 (T1) was associated with a sustained RTW at time-point two (T2) (β = 0.24, P < 0.05) but no association was found between RTW-SE at T2 and a sustained RTW at time-point three (T3) (β = 0.017, n.s.). Model comparisons revealed significant differences in the associations between RTW-SE and a sustained RTW, with the relationship being stronger in the early phase of RTW compared to the latter phase (χ² = 5.002, p = 0.03). Conclusions The results indicate that RTW-SE at 4-6 months post-injury is important for a sustained RTW 6-months later although RTW-SE at 10-12 months post-injury had a negligible association over the same duration. Further research should investigate whether these findings generalize to other populations and what factors other than RTW-SE are associated with RTW in the later stages of the RTW process.

Predicting Return to Work in a Heterogeneous Sample of Recently Injured Workers Using the Brief ÖMPSQ-SF

Purpose (1) to examine the ability of the Örebro Musculoskeletal Pain Screening Questionnaire-short version (ÖMPSQ-SF) to predict time to return to pre-injury work duties (PID) following a work-related soft tissue injury (regardless of body location); and (2) to examine the appropriateness of 50/100 as a suitable cut-off score for case identification. Methods Injured workers (IW) from six public hospitals in Sydney, Australia, who had taken medically-sanctioned time off work due to their injury, were recruited by insurance case managers within 5-15 days of their injury. Eligible participants (N = 213 in total) were administered the ÖMPSQ-SF over the telephone by the case manager. For objective (1) Cox proportional hazards regression analysis was used to predict days to return to PID using the ÖMPSQ-SF. For objective (2) receiver operator characteristic (ROC) analysis was used to determine the ÖMPSQ-SF total score that optimises sensitivity and specificity in detecting whether or not participants had returned to PID within 2-7 weeks. Results The total ÖMPSQ-SF score significantly predicted number of days to return to PID, such that for every 1-point increase in the total ÖMPSQ-SF score the predicted chance of returning to work reduced by 4% (i.e., hazard ratio = 0.96), p < 0.001. Sensitivity and specificity for the ROC analysis comparing ÖMPSQ-SF total score to return to PID within 2-7 weeks suggested 48 as the optimal cut off (sensitivity = 0.65, specificity = 0.79). Conclusion The results provide strong support for the use of the ÖMPSQ-SF in an applied setting for identifying those IW likely to have delayed RTW when administered within 15 days of the injury. While a score of 48/100 was the optimal cut point for sensitivity and specificity, pragmatically, 50/100 should be acceptable as a cut-off in future studies of this type.

Secular trends in work disability and its relationship to musculoskeletal pain and mental health: a time-trend analysis using five cross-sectional surveys (2002-2010) in the general population

OBJECTIVES

International evidence suggests that rates of inability to work because of illness can change over time. We hypothesised that one reason for this is that the link between inability to work and common illnesses, such as musculoskeletal pain and mental illness, may also change over time. We have investigated this in a study based in one UK district.

METHODS

Five population surveys (spanning 2002-2010) of working-age people aged >50 years and ≤65 years were used. Work disability was defined as a single self-reported item 'not working due to ill-health'. Presence of moderate-severe depressive symptoms was identified from the Mental Component Score of the Short Form-12, and pain from a full-body manikin. Data were analysed with multivariable logistic regression.

RESULTS

The proportion of people reporting work disability across the surveys declined, from 17.0% in 2002 to 12.1% in 2010. Those reporting work disability, one-third reported regional pain, one-half widespread pain (53%) and two-thirds moderate-severe depressive symptoms (68%). Both factors were independently associated with work disability; their co-occurrence was associated with an almost 20-fold increase in the odds of reporting work disability compared with those with neither condition.

CONCLUSIONS

The association of work disability with musculoskeletal pain was stable over time; depressive symptoms became more prominent in persons reporting work disability, but overall prevalence of work disability declined. The frequency and impact of both musculoskeletal pain and depression highlight the need to move beyond symptom-directed approaches towards a more comprehensive model of health and vocational advice for people unable to work because of illness.

Cancer and heart attack survivors' expectations of employment status: results from the English Longitudinal Study of Ageing

Background

Sociodemographic, health- and work-related factors have been found to influence return to work in cancer survivors. It is feasible though that behavioural factors, such as expectation of being at work, could also affect work-related outcomes. Therefore, the effect of earlier identified factors and expectation of being at work on future employment status in cancer survivors was explored. To assess the degree to which these factors specifically concern cancer survivors, a comparison with heart attack survivors was made.

Methods

Data from the English Longitudinal Study of Ageing were used. Cancer and heart attack survivors of working age in the UK were included and followed up for 2 years. Baseline characteristics of both cancer and heart attack survivors were compared regarding employment status. Univariate and multivariate regression analyses were performed in survivors at work, and the interaction between independent variables and diagnose group was assessed.

Results

In cancer survivors at work (N = 159), alcohol consumption, participating in moderate or vigorous sport activities, general health and participation were univariate associated with employment status at two-year follow-up. Only fair general health (compared to very good general health) remained statistically significant in the multivariate model (OR 0.31; 95% CI 0.13–0.76; p = 0.010). In heart attack survivors at work (N = 78), gender, general health and expectation of being at work were univariate associated with employment status at follow-up. Female gender (OR 0.03; 95% CI 0.00–0.57; p = 0.018) and high expectation of being at work (OR 10.68; 95% CI 1.23–93.92; p = 0.033) remained significant in the multivariate model. The influence of gender (p = 0.066) and general health (p = 0.020) regarding employment status was found to differ significantly between cancer and heart attack survivors.

Conclusions

When predicting future employment status in cancer survivors in the UK, general health is the most relevant factor to consider. While expectation of being at work did not show any significant influence in cancer survivors, in heart attack survivors, it should not be disregarded though, when developing interventions to affect their employment status. Future research should focus on more specific measures for expectation, and additional behavioural factors, such as self-efficacy, and their effect on employment status.

Predictors of non-return to work 2 years post-injury in road traffic crash survivors: Results from the UQ SuPPORT study

PURPOSE

Individuals who have sustained an injury from a road traffic crash (RTC) are at increased risk for long lasting health problems and non-return to work (NRTW). Determining the predictors of NRTW is necessary to develop screening tools to identify at-risk individuals and to provide early targeted intervention for successful return to work (RTW). The aim of this study was to identify factors that can predict which individuals will not RTW following minor or moderate injuries sustained from a RTC.

METHOD

Participants were 194 claimants (63.4% female) within a common-law "fault-based" system from the UQ SuPPORT cohort who were working prior to their RTC. Participants were assessed at 6 months on a variety of physical and mental health measures and RTW status was determined at 2 years post-RTC. RTW rate was 78.4%.

RESULTS

Univariate predictors of NRTW included being the driver or passenger, having a prior psychiatric diagnosis, high disability level, low mental or physical quality of life, predicted non-recovery, high pain, low function, high expectations of pain persistency, low expectations about RTW, having a psychiatric diagnosis, elevated depression or anxiety. The final multivariable logistic regression model included only two variables: disability level and expectations about RTW. Seventy-five percent of individuals who will not RTW by 2 years can be identified accurately at an early stage, using only these two predictors.

CONCLUSION

The results are promising, because they suggest that having information about two factors, which are easily obtainable, can predict with accuracy those who will require additional support to facilitate RTW.

Work and Health Questionnaire (WHQ): A Screening Tool for Identifying Injured Workers at Risk for a Complicated Rehabilitation

Purpose Unintentional injuries occur frequently and many of the accident survivors suffer from temporary or permanent disabilities. Although most accident victims recover quickly, a significant fraction of them shows a complicated recovery process and accounts for the majority of disability costs. Thus, early identification of vulnerable persons may be beneficial for compensation schemes, government bodies, as well as for the worker themselves. Here we present the Work and Health Questionnaire (WHQ), a screening tool that is already implemented in the case management process of the Swiss Accident Insurance Fund (Suva). Moreover, we demonstrate its prognostic value for identifying workers at risk of a complicated recovery process. Methods A total of 1963 injured workers answered the WHQ within the first 3 months after their accident. All of them had minor to moderate accidental injuries; severely injured workers were excluded from the analyses. The anonymized individual-level data were extracted from insurance databases. We examined construct validity by factorial analyses, and prognostic validity by hierarchical multiple regression analyses on days of work disability. Further, we evaluated well-being and job satisfaction 18 months post-injury in a subsample of 192 injured workers (9.8 %) Results Factor analyses supported five underlying factors (Job Design, Work Support, Job Strain, Somatic Condition/Pain, and Anxiety/Worries). These subscales were moderately correlated, thus indicating that different subscales measured different aspects of work and health-related risk factors of injured workers. Item analysis and reliability analysis showed accurate psychometric properties. Each subscale was predictive at least for one of the evaluated outcomes 18 months post-injury. Conclusion The WHQ shows good psychometric qualities with high clinical utility to identify injured persons with multiple psychosocial risk factors. Thus, the questionnaire appears to be suitable for exploring different rehabilitation needs among minor to moderate injured workers.

Conceptualizing the driving forces for successful rehabilitation back to work

BACKGROUND

An earlier study states that the terms of desire, longing, and vanity carry with them ideas, emotions, and values that influence how individuals perceive themselves and their rehabilitation process. Our aim was (1) to use concept analysis to explore the meaning of the terms desire, longing, and vanity and (2) to investigate the potential role of these concepts in successful rehabilitation back to work.

METHODS

To achieve these two objectives, we used a model of concept analysis. The final step in the model is to define empirical references, for example, articles within the scientific literature, to determine the existence of a concept in a given situation.

RESULTS

The concept analysis resulted in 15 new searchable terms. All of these were accepted in the thesaurus system for the databases we used. We identified 59 scientific articles that were deemed relevant to the purposes of the study. Of these, only 20 was about emotions as driving forces in a rehabilitation process back to work.

CONCLUSION

The conclusion of the study is that the concepts of desire, longing, and vanity encompassed ideas, emotions, and values that influence how individuals perceived themselves and their situations. How individuals talk about and understand rehabilitation will undoubtedly play a role in how they respond to interventions, and thus, the success of the rehabilitation process back to work. Implications for rehabilitation Emotional energy often drives behavior and can provide significant motivation that potentially can mobilize vocational rehabilitation. The concepts of desire, longing and vanity encompass ideas, emotions, and values that influence individuals' self-perception and their view of their situation. To engage people in discussions on what they long for and desire could be a new way to connect with a person in a rehabilitation situation. It can be less provoking to talk about what a person desires or longs for than to ask them what they want or are motivated for. Feelings of meaningfulness are a basic driving force and a contributing factor in how health is experienced. By affirming the desire to do activities that are liked, this in turn generates motivation to be engaged in other activities. Individual confidence is generated through the experience of mastering a skill and this in turn can underpin a desire to return to work after long-term sick leave. Earlier experience of success can be an inspiration and create expectations for a forthcoming working-role. Emotions relating to work such as pride can generate motivation in a rehabilitation process. Vanity and the possibility of being "ashamed" in a certain situation can be an emotional driving force to re-establish one's self.

Patients' Expectations Regarding Medical Treatment: A Critical Review of Concepts and Their Assessment

Patients’ expectations in the context of medical treatment represent a growing area of research, with accumulating evidence suggesting their influence on health outcomes across a variety of medical conditions. However, the aggregation of evidence is complicated due to an inconsistent and disintegrated application of expectation constructs and the heterogeneity of assessment strategies. Therefore, based on current expectation concepts, this critical review provides an integrated model of patients’ expectations in medical treatment. Moreover, we review existing assessment tools in the context of the integrative model of expectations and provide recommendations for improving future assessment. The integrative model includes expectations regarding treatment and patients’ treatment-related behavior. Treatment and behavior outcome expectations can relate to aspects regarding benefits and side effects and can refer to internal (e.g., symptoms) and external outcomes (e.g., reactions of others). Furthermore, timeline, structural and process expectations are important aspects with respect to medical treatment. Additionally, generalized expectations such as generalized self-efficacy or optimism have to be considered. Several instruments assessing different aspects of expectations in medical treatment can be found in the literature. However, many were developed without conceptual standardization and psychometric evaluation. Moreover, they merely assess single aspects of expectations, thus impeding the integration of evidence regarding the differential aspects of expectations. As many instruments assess treatment-specific expectations, they are not comparable between different conditions. To generate a more comprehensive understanding of expectation effects in medical treatments, we recommend that future research should apply standardized, psychometrically evaluated measures, assessing multidimensional aspects of patients’ expectations that are applicable across various medical treatments. In the future, more research is needed on the interrelation of different expectation concepts as well as on factors influencing patients’ expectations of illness and treatment. Considering the importance of patients’ expectations for health outcomes across many medical conditions, an integrated understanding and assessment of such expectations might facilitate interventions aiming to optimize patients’ expectations in order to improve health outcomes.

Do expectancies of return to work and Job satisfaction predict actual return to work in workers with long lasting LBP?

Background

Musculoskeletal disorders including low back pain have major individual and socioeconomic consequences as it often leads to disability and long-term sick leave and exclusion from working life. Predictors of disability and return to work often differ, and the dominant knowledge is on predictors for prolonged sick leave and disability. Therefore it is also important to identify key predictors for return to work. The aim of the study was to assess if overall job satisfaction and expectancies of return to work predicts actual return to work after 12 months, among employees with long lasting low back pain, and to assess if there were gender differences in the predictors.

Methods

Data from the Cognitive interventions and nutritional supplements trial (CINS Trial) was used. Predictors for return to work were examined in 574 employees that had been on sick leave 2–10 months for low back pain, before entering the trial. Data were analysed with multiple logistic regression models stratified by gender, and adjusted for potential confounders.

Results

Regardless of gender high expectancies were a strong and significant predictor of return to work at 12 months, while high levels of job satisfaction were not a significant predictor. There were no differences in the levels of expectancies or overall job satisfaction between men and women. However, men had in general higher odds of returning to work compared with women.

Conclusions

Among individuals with long lasting low back pain high expectancies of returning to work were strongly associated with successful return to work. We do not know what factors influence individual expectancies of return to work. Screening expectancies and giving individuals with low expectancies interventions with a goal to change expectancies of return to work, such as CBT or self-management interventions, may contribute to increase actual return to work.

Trial registration

http://www.clinicaltrials.gov/, with registration number NCT00463970. The trial was registered at the 18th of April 2007.

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.

Welche Erwartungen sagen postoperative Depressivität und Ängstlichkeit bei herzchirurgischen Patienten am stärksten vorher?

Zusammenfassung. Theoretischer Hintergrund: Depressivität und Ängstlichkeit beeinträchtigen den Behandlungserfolg von herzchirurgischen Patienten. Fragestellung: Untersucht wurde, ob und wie präoperative Patientenerwartungen mit postoperativer Depressivität und Ängstlichkeit zusammenhängen und welche präoperativen Erwartungen hierbei den höchsten prädiktiven Wert haben. Methoden: 124 aortocoronare Bypass-Patienten bearbeiteten eine Woche vor der Operation einen Fragebogen, der verschiedene Aspekte von Erwartungen mischt (Positive Health Expectation Questionnaire; PHES) und einen Fragebogen, der einzelne Erwartungsaspekte getrennt erfasst (Expected Illness Perception Questionnaire, IPQ-E) und eine Woche vor sowie eine Woche nach der Operation Fragen zu ihrer Depressivität und Ängstlichkeit (Hospital Anxiety and Depression Scale (HADS)). Ergebnisse: Postoperative Depressivität wird durch präoperative Erwartungen vorhergesagt (R2 = 0.32, F = 3.13, p = .02). Der einzig signifikante Prädiktor hierbei sind positive Gesundheitserwartungen gemessen mit dem PHES. Auch postoperative Ängstlichkeit wird durch präoperative Erwartungen vorhergesagt (R2 = 0.27, F = 2.55, p < .05). Bei der Vorhersage postoperativer Ängstlichkeit haben erwartete Konsequenzen gemessen mit dem IPQ-E den stärksten prädiktiven Wert. Schlussfolgerungen: Die Studie belegt die Relevanz von präoperativen Erwartungen bei herzchirurgischen Patienten. Interventionen, die auf die Verringerung von Depressivität herzchirurgischer Patienten abzielen, sollten den Fokus auf verschiedene Aspekte von Erwartungen legen. Bei der Verringerung postoperativer Ängstlichkeit könnten hingegen einzeln erfasste Erwartungsaspekte von Bedeutung sein.

Personality Traits, Psychological Health, and the Workers' Compensation System

This study explored the influence of personality traits on injured workers' interaction with workers' compensation systems. Data were collected from 89 participant claimants (males, 41; females 48, mean age = 45 years,SD= 10.67 years) at various levels of involvement with the workers' compensation system: previous claimants (n= 39), current claimants (n= 28), and nonclaimant workers (n= 22). Significant differences in personality traits were found between these groups of compensation claimants. Current compensation claimants displayed greater emotional instability and introversion compared with those less acutely involved in the compensation system. Current claimants also experienced clinically significant levels of symptoms of depression, anxiety, somatic complaints, and reported reduced social functioning, relative to previous and nonclaimants, respectively. Overall, subtle differences were found to exist in personality and psychological health between groups of workers at different levels of involvement with the workers' compensation system.

Factors associated with disability expectations in patients undergoing heart surgery

BACKGROUND

Heart surgery patients' expectations have been shown to be related to surgery outcome, independent of medical status. However, it is unclear which factors determine patients' expectations about disability following heart surgery.

PURPOSE

Investigating the associations of patients' disability expectations with demographic, medical, and psychosocial factors as well as other aspects of patients' expectations might help to tailor psychological interventions more specifically to optimize patient's expectations.

METHODS

Eighty-three patients were invited to a psycho-educational intervention to optimize expectations prior to elective coronary artery bypass graft (CABG). Before the psychological intervention and before surgery, disability expectations, demographical, medical, psychosocial variables as well as patient and treatment related expectations were collected via questionnaires and patients' files. Associations with disability expectations were assessed using hierarchical linear multiple regression analysis.

RESULTS

Patients self-rated disability (β = 0.50; p < 0.001) and beliefs about treatment efficacy (β = -0.42; p < 0.001) was independently associated with disability expectations. Expectations about the efficacy of patients' own health behavior as well as demographical variables, psychological distress, perceived social support, and measures of medical morbidity did not explain any additional variance in patients' disability expectations.

CONCLUSION

CABG patients seem to form their disability expectations upon their perceptions about their current disability and their expectations about the efficacy of treatment. Patients' disability expectations appear to be independent from scientifically established risk factors and other psychosocial patient characteristics in heart surgery. Future research is necessary to further determine what factors psychological interventions should focus on to modify patients' disability expectations.

Measures of patients' expectations about recovery: a systematic review

INTRODUCTION

Patients' expectations regarding their prognosis has been shown to affect recovery. We completed a systematic review to identify measures that assess patients' expectations of recovery.

METHODS

Eligible studies explored the association between patients' expectations of recovery, and return to work or claim resolution. We searched electronic databases (MEDLINE and PSYCInfo) from inception to June 21, 2014, bibliographies of eligible studies, relevant systematic reviews and our personal files. Reviewers determined study eligibility and study quality, and completed data extraction.

RESULTS

Of 14,509 unique citations, 46 studies were eligible with majority of the studies (n = 27; 59 %) rated as low quality, primarily due to substantial missing data and inappropriate adjustment for age, gender and illness severity in their regression models. We identified 5 measures and 41 individual items assessing recovery expectations. Three of seven (43 %) studies using a measure to assess recovery expectations reported psychometric properties, with only one reporting both reliability and construct validity. Only two measures (Expectations of Recovery Scale and the Work-related Recovery Expectations Questionnaire) were externally validated in different populations. Overall, 44 (96 %) studies found that patient recovery expectations was a significant predictor of return to work or sick leave/disability claim resolution.

CONCLUSIONS

Very few studies assessing recovery expectations use a psychometrically valid measure. Current evidence suggests that patients with lower recovery expectations are less likely to resolve their disability claim or return to work versus patients with higher recovery expectations. Further validation of existing measures for assessing patient recovery expectations, or development of a new measure that addresses the limitations of existing ones, is required.

Measuring illness beliefs in patients with lower extremity injuries: reliability and validity of the Dutch version of the Somatic Pre-Occupation and Coping questionnaire (SPOC-NL)

INTRODUCTION

Positive coping strategies, illness perceptions and recovery expectations are associated with better clinical outcomes and earlier return to work after injuries. The Somatic Pre-Occupation and Coping (SPOC) questionnaire captures illness beliefs and coping towards recovery of physical function and return to work after surgical treatment of tibial shaft fractures. The aim of this study was to translate and culturally adapt the SPOC into Dutch (SPOC-NL) and evaluate its reliability and validity in patients with lower extremity injuries.

MATERIALS

The SPOC-NL contains four subscales: Somatic complaints, Coping, Energy, and Optimism. Patients treated for lower extremity injuries (N=106) completed the SPOC-NL, Short Form-36 and Short Musculoskeletal Function Assessment (SMFA-NL) questionnaire, and reported their current work status and self-perceived work ability. To assess test-retest reliability, 56 patients completed the SPOC-NL for a second time two weeks after the first administration of the SPOC-NL. We calculated Cronbach's Alpha, intraclass correlation coefficients (ICCs) and G coefficients to measure internal consistency and overall reliability, and used the Bland and Altman method to assess bias between test and retest SPOC-NL scores. To determine construct validity, we explored 16 a priori hypotheses regarding correlations between SPOC-NL scores and subscale scores and SF-36, SMFA-NL, work status and work ability.

RESULTS

Internal consistency was good to excellent, with Cronbach's Alpha values ranging between 0.79 and 0.94 and G coefficients ranging between 0.77 and 0.95. Test-retest reliability was also good, since high ICCs (0.72-0.91) and G coefficients (0.82-0.94) were found. Construct validity of the SPOC-NL was good, as 75% of the predefined hypotheses were confirmed. Compared to participants who were on sick leave or receiving disability benefits, participants with a paid job had significantly higher scores on the total score and the subscales Somatic complaints and Energy of the SPOC-NL. Participants with high work ability also had significantly higher scores on the total score and all subscales than participants with low work ability.

DISCUSSION AND CONCLUSIONS

The SPOC-NL is a reliable and valid measure for the assessment of illness beliefs and coping towards recovery and it is strongly related to work status and self-perceived ability to work in patients with lower extremity injuries.

Vocational rehabilitation program evaluation: comparison group challenges and the role of unmeasured return-to-work expectations

PURPOSE

Despite the importance and cost of workers' compensation (WC)-based vocational rehabilitation (VR) programs, outcome evaluations are rare, in part due to the scarcity of suitable comparison groups. The aims of this study were to assess (1) the adequacy of a commonly recommended internal comparison group, i.e., workers who were eligible for but did not receive services, and (2) return-to-work (RTW) expectations as a potential source of bias.

METHODS

In this prospective cohort study, we used WC claims data and worker-reported RTW expectations to compare workers who received vocational retraining services to eligible workers who did not receive such services. Workers were surveyed after retraining eligibility determination, prior to the initiation of retraining activities. VR progress and RTW wage outcomes were followed for 3 years. The magnitude of confounding contributed by RTW expectations and other covariates was quantified.

RESULTS

Workers who were somewhat or very certain they would RTW had significantly better outcomes. RTW expectations played a strong confounding role, reducing the retraining plan effect estimate by about 23 %, while education and physical capacity each changed the effect estimate by <5 %.

CONCLUSIONS

RTW expectations predicted long-term RTW outcomes and can play a strong confounding role if unmeasured. We found that the internal comparison group approach, commonly recommended for VR program evaluation, is inappropriate for WC-based VR evaluations. Ultimately, there is no simple solution to the challenge of identifying a comparison group; however, measurement of RTW expectations, an easily-measured multi-dimensional construct, may be a useful addition to the VR evaluation toolbox.

How do workers with common mental disorders experience a multidisciplinary return-to-work intervention? A qualitative study

PURPOSE

Long-term sick leave due to common mental disorders (CMD) is an increasing problem in many countries. Recent reviews indicate that return to work (RTW) interventions have limited effect on reducing sickness absence among this group of sick-listed. The aims of this study were to investigate how sick-listed persons with CMD experienced participating in an RTW intervention and how workability assessments and RTW activities influenced their RTW-process, and to examine the working mechanisms of the intervention. The gained knowledge can help improve future RTW intervention design and implementation.

METHODS

In-depth interviews were conducted with 17 participants on sick leave due to CMD who participated in an RTW intervention. Interviews were conducted at three time points with each participant. Principles of interpretative phenomenological analyses guided the analysis.

RESULTS

The workability assessment consultations and RTW activities such as psychoeducative group sessions and individual sessions with psychologist could result in both motivation and frustration depending on the extent to which the RTW professionals practiced what we have termed an individual approach to the sick-listed person.

CONCLUSIONS

The individual approach seems necessary for the realization of the positive potential in the RTW intervention. However, the fact that RTW professionals are both the facilitators and the controllers of the sick-listed persons' RTW process is an inherent paradox in the intervention, which can impede the necessary establishment of a high-quality relationship between the sick-listed persons and RTW professionals.

Anticipated significant work limitation in primary care consulters with osteoarthritis: a prospective cohort study

OBJECTIVE

To describe the prevalence of expected work limitations (EWL) prior to future retirement age in osteoarthritis consulters, and the associated health, sociodemographic and workplace factors.

DESIGN

Population-based prospective cohort study.

SETTING

General practices in Staffordshire, England.

PARTICIPANTS

297 working adults aged 50-65, who had consulted primary care for osteoarthritis.

OUTCOME

EWL was defined using a single question, "Do you think joint pain will limit your ability to work before you reach 69 years old?"

RESULTS

51 (17.2%) indicated that joint pain would not limit their ability to work until 69, 79 (26.6%) indicated EWL and 167 (56.2%) did not know if joint pain would limit work before 69. In bivariate analysis, physical function (OR 0.93; 95% CI 0.91 to 0.96), depression (4.51; 1.81 to 11.3), cognitive symptom (3.84; 1.81 to 8.18), current smoker (2.75; 1.02 to 7.38), age (0.69; 0.58 to 0.82), physically demanding job (3.18; 1.50 to 6.72), no opportunities to retrain (3.01; 1.29 to 7.05) and work dissatisfaction (3.69; 1.43 to 9.49) were associated with EWL. The final multivariate model included physical function and age.

CONCLUSIONS

Only one in five osteoarthritis consulters expected that joint pain would not limit their work participation before 69 years of age. Given the expectation for people to work until they are older, the results highlight the increasing need for clinicians to include work participation in their consultation and implement strategies to address work loss/limitation. Targeting pain-related functional limitation and effective communication with employers to manage workplace issues could reduce EWL.

Predicting non return to work after orthopaedic trauma: the Wallis Occupational Rehabilitation RisK (WORRK) model

Background

Workers with persistent disabilities after orthopaedic trauma may need occupational rehabilitation. Despite various risk profiles for non-return-to-work (non-RTW), there is no available predictive model. Moreover, injured workers may have various origins (immigrant workers), which may either affect their return to work or their eligibility for research purposes. The aim of this study was to develop and validate a predictive model that estimates the likelihood of non-RTW after occupational rehabilitation using predictors which do not rely on the worker’s background.

Methods

Prospective cohort study (3177 participants, native (51%) and immigrant workers (49%)) with two samples: a) Development sample with patients from 2004 to 2007 with Full and Reduced Models, b) External validation of the Reduced Model with patients from 2008 to March 2010. We collected patients’ data and biopsychosocial complexity with an observer rated interview (INTERMED). Non-RTW was assessed two years after discharge from the rehabilitation. Discrimination was assessed by the area under the receiver operating curve (AUC) and calibration was evaluated with a calibration plot. The model was reduced with random forests.

Results

At 2 years, the non-RTW status was known for 2462 patients (77.5% of the total sample). The prevalence of non-RTW was 50%. The full model (36 items) and the reduced model (19 items) had acceptable discrimination performance (AUC 0.75, 95% CI 0.72 to 0.78 and 0.74, 95% CI 0.71 to 0.76, respectively) and good calibration. For the validation model, the discrimination performance was acceptable (AUC 0.73; 95% CI 0.70 to 0.77) and calibration was also adequate.

Conclusions

Non-RTW may be predicted with a simple model constructed with variables independent of the patient’s education and language fluency. This model is useful for all kinds of trauma in order to adjust for case mix and it is applicable to vulnerable populations like immigrant workers.

Impact of the severity of trauma on early retirement

OBJECTIVE

To assess the association between Injury Severity Score (ISS) and subsequent risk of early retirement.

DESIGN

Observational cohort study with follow-up based on prospectively collected data. Hospital-based data were linked to national register data on pension reception and vital status.

SETTING

Level-one urban trauma centre.

PARTICIPANTS

Patients aged 18-64 years entering the trauma centre in Copenhagen during 1999-2007 who were alive after three days were followed until early retirement, death or emigration.

MAIN OUTCOME MEASURES

Primary outcome was early retirement, defined as receiving disability pension (unintentional) or voluntary early retirement pension (intentional) before the regular age of retirement (65 years). Relative risk of early retirement according to ISS (low, ISS 1-15 vs. high, ISS 16-75) was assessed using Cox proportional hazards regression, adjusted for age and gender.

RESULTS

Of all 6687 patients admitted to the trauma centre, a total of 1722 trauma patients were included and followed for a median of 6.2 years (interquartile range (IQR) 3.7-9.1). Of these, 1305 (75.8%) were males, median age was 35.0 years (IQR 25.4-46.5), and median ISS was 16 (IQR 9-25). Three hundred and twenty-two patients retired during follow-up. Patients with high ISS, compared to patients with low ISS, had an increased risk of early retirement, adjusted hazard ratio 2.60 (95% confidence interval (CI) 2.05-3.30; p<0.001). Relative increase in retirement risk was 1.04 (95% CI 1.03-1.05) per ISS point and 1.03 (95% CI 1.03-1.04) per year older. Gender was not found to be a significant risk factor (p=0.69). Five-year absolute risks of early retirement were 9.9% (95% CI 7.8-12.0%) for the low ISS group and 24.6% (95% CI 21.6-27.5%) for the high ISS group.

CONCLUSIONS

The risk of early retirement is 2.6 times higher in severely injured patients (ISS 16-75) than the risk in low to moderately injured patients (ISS 1-15) and they have a high absolute 5-year risk as well. Early, targeted interventions to assist with return to work might be able to reduce this risk.

The impact of psychological symptoms on return to work in workers after occupational injury

INTRODUCTION

This study aimed to investigate the impact of psychological symptoms on return to work (RTW) in workers after occupational injuries.

METHODS

Our study candidates were injured workers who were hospitalized for 3 days or longer and received hospitalization benefits from the Labor Insurance. A self-reported questionnaire including Brief Symptom Rating Scale (BSRS-50) and RTW was sent to workers at 12 weeks after injury. At 1 year, all participants were contacted again to determine whether or not they had RTW.

RESULTS

A total of 2001 workers completed the questionnaire (response rate 45.5 %) at 12 weeks after injury, among them, 1,149 had returned to work. Among the 852 who were unable to return to work at 12 weeks after injury, 225 reportedly returned to work by 1 year. A proportional hazards regression indicated that after adjusting for all possible risk factors, higher scores in BSRS-50 and BSRS-5 at 12 weeks after injury were significant risk factors for not return to work (NRTW) at 1 year after injury. Other risk factors were gender, education level, length of hospitalization, affected physical appearance, and injury type. Among 10 psycho-physiological symptoms of BSRS-50, a proportional hazards regression indicated that high score in phobic-anxiety scale was a risk factor for NRTW.

CONCLUSIONS

After considering all other factors, psychological symptoms further predicted poorer probability of returning to work after occupational injury, and phobic-anxiety was the most significant symptom predicting poor RTW. Development of preventive measures among injured workers according to the risk factors identified in this study is warranted.

Recovery following injury hinges upon expectation and hope

Recovery following trauma depends on many factors and is not related to only the physical severity of injury. Different people respond differently to the stress of injury and, therefore, recover differently. Support networks are important. Expectation and hope, which can be greatly influenced by responsible health care professionals, can hugely influence recovery.

Workers' compensation status: does it affect orthopaedic surgery outcomes? A meta-analysis

INTRODUCTION

Previous reviews have demonstrated that patient outcomes following orthopaedic surgery are strongly influenced by the presence of Workers' Compensation. However, the variability in the reviews' methodology may have inflated the estimated strength of this association. The main objective of this meta-analysis is to evaluate the influence of Workers' Compensation on the outcomes of orthopaedic surgical procedures.

METHODS

We conducted a systematic search of the literature published in this area from 1992-2012, with no language restrictions. The following databases were used MEDLINE (Ovid), Embase (Ovid), CINAHL, Google Scholar, LILACS and Pubmed. We also hand-searched the reference sections of all selected papers. We included all prospective studies evaluating the effect of compensation status on outcomes in adult patients who had undergone surgery due to orthopaedic conditions or diseases. Outcomes of interest included disease specific, region specific and/or overall quality of life scales/questionnaires and surgeons' personal judgment of the results. We used an assessment tool to appraise the quality of all included studies. We used Review Manager to create forest plots to summarize study data and funnel plots for the assessment of publication bias.

RESULTS

Twenty studies met our eligibility criteria. The overall risk ratio for experiencing an unsatisfactory result after orthopaedic surgery for patients with compensation compared to non-compensated patients is 2.08 (95% CI 1.54-2.82). A similar association was shown for continuous data extracted from the studies using assessment scales or questionnaires (Standard Mean Difference = -0.70 95% CI -0.97- -0.43).

CONCLUSIONS

Among patients who undergo orthopaedic surgical procedures, those receiving Workers' Compensation experience a two-fold greater risk of a negative outcome. Our findings show a considerably lower estimate of risk compared to previous reviews that include retrospective data. Further research is warranted to determine the etiological explanation for the influence of compensation status on patient outcomes. SYSTEMATIC REVIEW REGISTRATION NUMBER: CRD42012002121.

Rural workers' experience of low back pain: exploring why they continue to work

INTRODUCTION

Many New Zealand rural workers have repeated low back pain (LBP) episodes yet continue to work. We wanted to find out why, given that other manual workers with LBP often end up on long term sick leave or permanently disabled.

METHODS

Our primarily qualitative approach used mixed methods to investigate rural workers with non-specific LBP. Participants (n = 33) were surveyed for demographic data, the Brief Illness Perception Questionnaire and the General Self Efficacy Scale followed by one-to-one semi-structured interviews. Analysis ranged from descriptive content to detailed qualitative Interpretative Phenomenological Analysis.

RESULTS

Participants had high self efficacy scores, positive perceptions about LBP but strong beliefs that LBP is lifelong. Four distinct themes emerged. "Thinking with my head before my back" and "Knowing the risks" described participants' innovation regarding job modifications. "Just carry on" and "Love of the land" related to stoical resilience and commitment to something more than employment.

CONCLUSIONS

This rural workforce adopts a 'can do' attitude to work, managing LBP within the context of having job control and flexible work practices.

IMPLICATIONS

Rehabilitation interventions promoting job control and targeting positive attitudes towards getting on with work, whilst accepting LBP as part of everyday life, may have merit for other workers with LBP.