One-year Predictors of Presenteeism in Workers with Rheumatoid Arthritis: Disease-related Factors and Characteristics of General Health and Work

Development of a Multimodal, Physiotherapist-Led, Vocational Intervention for People with Inflammatory Arthritis and Reduced Work Ability: A Mixed-Methods Design Study

PURPOSE

Work ability of people with rheumatoid arthritis (RA) and axial spondyloarthritis (axSpA) is reduced, but underexamined as a clinical treatment target. The evidence on vocational interventions indicates that delivery by a single healthcare professional (HCP) may be beneficial. Physiotherapist (PT)-led interventions have potential because PTs are most commonly consulted by RA/axSpA patients in the Netherlands. The aim was to develop a PT-led, vocational intervention for people with RA/axSpA and reduced work ability.

METHODS

Mixed-methods design based on the Medical Research Council (MRC) framework for developing and evaluating complex interventions, combining a rapid literature review and six group meetings with: patient representatives (n = 6 and 10), PTs (n = 12), (occupational) HCPs (n = 9), researchers (n = 6) and a feasibility test in patients (n = 4) and PTs (n = 4).

RESULTS

An intervention was developed and evaluated. Patient representatives emphasized the importance of PTs' expertise in rheumatic diseases and work ability. The potential for PTs to support patients was confirmed by PTs and HCPs. The feasibility test confirmed adequate feasibility and underlined necessity of training PTs in delivery. The final intervention comprised work-focussed modalities integrated into conventional PT treatment (10-21 sessions over 12 months), including a personalized work-roadmap to guide patients to other professionals, exercise therapy, patient education and optional modalities.

CONCLUSION

A mixed-methods design with stakeholder involvement produced a PT-led, vocational intervention for people with RA/axSpA and reduced work ability, tested for feasibility and ready for effectiveness evaluation.

Exploring the working conditions of disabled employees: a scoping review

PURPOSE

Disabled people are often overlooked in considerations about work design, which contributes to their exclusion from the labor market. This issue also reflects within research, as the body of knowledge on the working conditions of disabled employees remains relatively limited.

METHODS

A scoping review was conducted to assess the research landscape concerning the working conditions of disabled employees. Five databases have been searched, focusing on relevant studies published between 2017 and 2022.

RESULTS

One hundred fourteen studies were included in the review. It was found that social aspects of work appeared within a substantial portion of the examined studies. Furthermore, it became evident that the interplay of accessibility and flexibility provides an important dynamic to make work design both inclusive and feasible.

CONCLUSION

The recurrent prominence of social aspects, accessibility, and flexibility across the studies shows common challenges and potentials within the work situation of disabled employees. This suggests avenues for future research and inclusive work design.

The Work Experience Survey - Rheumatic conditions (United Kingdom): Psychometric properties and identifying the workplace barriers of employed people with inflammatory arthritis receiving vocational rehabilitation

OBJECTIVE

The aims were to: revise the Work Experience Survey-Rheumatic Conditions (WES-RC- UK), a work assessment listing 142 workplace barriers; investigate content validity, reliability, and concurrent validity; update the accompanying WES-RC and WORKWELL Solutions Manuals; and investigate workplace barriers of people with inflammatory arthritis.

METHODS

Rheumatology therapists, following vocational rehabilitation (VR) training, assessed participants in the WORKWELL VR trial using the WES-RC. Data were extracted from the WES-RC to identify the frequency of workplace barriers, and from trial baseline questionnaires (e.g., Work Limitations Questionnaire-25 (WLQ-25). Barriers reported by ≤5 participants were considered for removal. WES-RC content validity was assessed by linking to the International Classification of Functioning, Health, and Disability Core Set for VR (ICF-VR). Reliability was assessed using Cronbach's α and concurrent validity by correlating the total number of workplace barriers reported with WLQ-25 scores.

RESULTS

WES-RCs were completed with 116 employed participants: 79% women, age 48.72 (SD 9.49) years, and 57% working full-time. The WES-RC was reduced to 121 barriers. Content validity was good, with 73/90 ICF-VR items linked. Cronbach's α = 0.92, that is, suitable for individual use. Concurrent validity was moderate: WLQ-25 (rs  = 0.40). The three most common barriers were Physical Job Demands (100%: e.g., mobility 99%; hand use 74%), Mental, Time, Energy, Emotional Job Demands (91%, e.g., concentration 47%, remembering 41%); Getting Ready for and Travel to Work (87%, e.g., driving 60%).

CONCLUSION

The WES-RC (UK) has good content validity, reliability, and concurrent validity. The wide range of barriers emphasises the need for biopsychosocial work rehabilitation.

Cost-utility analysis of tapering strategies of biologicals in rheumatoid arthritis patients in the Netherlands

OBJECTIVES

Current guidelines recommend tapering biological disease-modifying antirheumatoid drugs (bDMARDs) in rheumatoid arthritis (RA) if the disease is under control. However, guidelines on tapering are lacking. Assessing cost-effectiveness of different tapering strategies might provide broader input for creating guidelines on how to taper bDMARDs in patients with RA. The aim of this study is to evaluate the long-term cost-effectiveness from a societal perspective of bDMARD tapering strategies in Dutch patients with RA, namely 50% dose reduction (tapering), discontinuation and a 50% dose reduction followed by discontinuation (de-escalation).

METHODS

Using a societal perspective, a Markov model with a life-time horizon of 30 years was used to simulate 3-monthly transitions between Disease Activity 28 (DAS28)-defined health states of remission (<2.6), low disease activity (2.63.2). Transition probabilities were estimated through literature search and random effects pooling. Incremental costs, incremental quality-adjusted life-years (QALYs), incremental cost-effectiveness ratios (ICERs) and incremental net monetary benefits for each tapering strategy were compared with continuation. Deterministic, probabilistic sensitivity analyses and multiple scenario analyses were performed.

RESULTS

After 30 years, the ICERs were €115 157/QALY lost, €74 226/QALY lost and €67 137/QALY lost for tapering, de-escalation and discontinuation, respectively; mainly driven by bDMARD cost savings and a 72.8% probability of a loss in quality of life. This corresponds to a 76.1%, 64.3% and 60.1% probability of tapering, de-escalation and discontinuation being cost-effective, provided a willingness-to-accept threshold of €50 000/QALY lost.

CONCLUSIONS

Based on these analyses, the 50% tapering approach saved the highest cost per QALY lost.

Effectiveness and cost-effectiveness of a multimodal, physiotherapist-led, vocational intervention in people with inflammatory arthritis: study protocol of the Physiotherapy WORKs trial

BACKGROUND

Although reduced work ability is a substantial problem among people with inflammatory arthritis (IA), work ability is an underexposed area in clinical practice. Evidence on vocational interventions in IA is limited, but favourable results of delivery by a physiotherapist (PT) warrant the need for further research. Therefore, we aim to evaluate the (cost-)effectiveness of a multimodal, PT-led, vocational intervention in (self-)employed people with IA compared to usual care.

METHODS

This randomized controlled trial will include 140 people with rheumatoid arthritis (RA) or axial spondyloarthritis (axSpA) who are (self-)employed and have reduced work ability (Work Ability Index - Single Item Scale (WAS) ≤ 7/10) and/or RA/axSpA related sick leave (≤ 6 months). Participants will be randomized 1:1 to the intervention or control condition (usual care). The intervention, delivered by primary care PTs, will be personalized to each patient, consisting of 10 to 21 sessions over 12 months. The intervention will be multimodal, comprising of 1) exercise therapy and a physical activity plan, 2) education/self-management support, 3) work-roadmap to guide participants in finding relevant other care, with optionally 4) online self-management course and 5) workplace examination. Assessments will be performed at baseline and after 3, 6, and 12 months. The primary outcome measure of effectiveness is work ability, as measured with the WAS at 12 months. For the cost-effectiveness analysis, the EuroQol (EQ-5D-5L), self-reported healthcare use, sick leave and productivity while at work will be used to estimate the trial based cost-utility from a societal perspective. A process evaluation, including assessments of adherence and treatment fidelity, will be undertaken using the registrations of the PTs and semi-structured interviews at 12 months follow-up in a random sample of the intervention group.

DISCUSSION

The results of this study will provide insights in the (cost-)effectiveness of a multimodal, PT-led, vocational intervention in people with IA and a reduced work ability.

TRIAL REGISTRATION

This study is registered in the International Clinical Trial Registry Platform (ICTRP) under number NL9343.

Work limitations and associated factors in rheumatoid arthritis, axial spondyloarthritis, osteoarthritis and fibromyalgia

INTRODUCTION

Rheumatic and musculoskeletal diseases (RMD) impact on work participation. The aims of this study were to: examine work limitations of working people with: rheumatoid arthritis, axial spondyloarthritis (axSpA), osteoarthritis, or fibromyalgia using the Workplace Activity Limitations Scale (WALS, a measure of presenteeism); and identify personal, functioning and disability, and work contextual factors associated with presenteeism.

METHODS

Secondary analysis was conducted of a cross-sectional survey including work outcome measures (WORK-PROM study). A literature review identified variables (coded to ICF) to include in multivariable regressions examining factors associated with presenteeism.

RESULTS

Moderate to high WALS scores were identified in: 93.60% with FM; 69.90% OA; 65.20% RA; and 46.80% axSpA (n = 822). Similarities in work limitations were noted across conditions, although some more problematic in specific RMD. Participants received help with about a quarter of activities (27%RA; 25%FM; 23%OA; 17%axSpA) and work adaptations for less than a fifth causing difficulty (18%FM; 14%RA; 14%OA; 9%axSpA). Literature review identified 33 variables in the WORK-PROM dataset to include in multivariable regressions. Factors associated with higher WALS scores were worse: functional limitations, job strain, pain, difficulties with mental-interpersonal job demands, perceived health status, work-life balance, greater need for work accommodations and lack of perceived work support.

DISCUSSION

This study extends understanding of work limitations of working people with these four RMD, the extent of help and adaptations received, need for more work accommodation support, and focus on work support, work rehabilitation, and healthy workplace practices to help keep people working.

Association of vocational interventions and work-related factors with disease and work outcomes in people with RMDs: A systematic review

OBJECTIVE

A EULAR taskforce was convened to develop recommendations for lifestyle behaviours amongst people with rheumatic and musculoskeletal diseases (RMDs). This paper reviews the literature on work-related factors and disease-specific outcomes for people with osteoarthritis, rheumatoid arthritis (RA), systemic lupus erythematosus, axial spondyloarthritis (axSpA), psoriatic arthritis, systemic sclerosis (SSc) and gout.

METHODS

Two separate systematic literature reviews (SLRs) were conducted. The first identified SLRs, published between 01/2013 and 09/2018. The second identified original observational and intervention studies published before 05/2019. Manuscripts were included if they assessed the effects of vocational interventions on disease-specific outcomes (i.e. clinical outcomes, patient-reported outcomes, and work outcomes) or if they assessed the association between work-related factors and these outcomes. Medline, Embase, Cochrane Library of systematic reviews and CENTRAL databases were searched.

RESULTS

Two SLRs were identified including individuals with SSc and inflammatory arthritis. Subsequently, 23 original manuscripts were identified, with most of them (43.5%) including people with RA and no manuscripts on gout. Most observational studies evaluated the association between work-related factors and work outcomes while limited information was available on the impact of work on clinical outcomes. A few studies suggested that physically demanding jobs have a small detrimental effect on radiographic progression in axSpA and PsA. Intervention studies showed beneficial effects of vocational interventions for disease-specific outcomes, but with small effect sizes.

CONCLUSION

Many studies indicated that work participation is not likely to be detrimental and, in some cases, may be beneficial for RMD-specific outcomes and should therefore receive attention within healthcare consultations.

Exploring the disparity between inflammation and disability in the 10-year outcomes of people with rheumatoid arthritis

OBJECTIVES

To identify groups of people with RA with different disability trajectories over 10 years, despite comparable levels of inflammation.

METHODS

Data for this analysis came from three European prospective cohort studies of people with RA [Norfolk Arthritis Register (NOAR), Early RA Network (ERAN), Étude et Suivi des Polyarthrites Indifférenciées Récentes (ESPOIR)]. Participants were assessed regularly over 8 (ERAN) to 10 (NOAR/ESPOIR) years. Inclusion criteria were: recruited after 1 January 2000, <24 months baseline symptom duration, and disability (HAQ) and inflammation [two-component DAS28 (DAS28-2C)] recorded at baseline and at one other follow-up. People in each cohort also completed patient-reported outcome measures at each assessment (pain, fatigue, depressive symptoms). Group-based trajectory models were used to identify distinct groups of people with similar HAQ and DAS28-2C trajectories over follow-up.

RESULTS

This analysis included 2500 people with RA (NOAR: 1000, ESPOIR: 766, ERAN: 734). ESPOIR included more women and the participants were younger [mean (standard deviation) age: NOAR: 57.1 (14.6), ESPOIR: 47.6 (12.5), ERAN: 56.8 (13.8); women: NOAR: 63.9%, ESPOIR: 76.9%, ERAN: 69.1%). Within each cohort, two pairs of trajectories following the hypothesized pattern (comparable DAS28-2Cs but different HAQs) were identified. Higher pain, fatigue and depressive symptoms were associated with increased odds of being in the high HAQ trajectories.

CONCLUSION

Excess disability is persistent in RA. Controlling inflammation may not be sufficient to alleviate disability in all people with RA, and effective pain, fatigue and mood management may be needed in some groups to improve long-term function.

OUP accepted manuscript

OBJECTIVES

To develop and validate in real-world patients a conversion algorithm from the Multidimensionel Health Assessment Questionnaire physical function scale (MDHAQ) to the Stanford Health Assessment Questionnaire disability index physical function scale (HAQ) score.

METHODS

From the DANBIO registry, 13 391 patients with RA (n = 8983), PsA (n = 2649) and axial spondyloarthritis (axSpA, n = 1759) with longitudinal data on HAQ and MDHAQ were included, stratified by diagnosis, and randomized 1:1 into development and validation cohorts. Conversion algorithms were developed by linear regression and applied in validation cohorts. From MDHAQ, the HAQ was calculated (cHAQ) and validated against the observed HAQ for criterion, correlational and construct validity.

RESULTS

For RA, we developed the conversion algorithm cHAQ = 0.15+MDHAQ*1.08, and validated it in the RA validation cohort. Criterion validity: HAQ and cHAQ had comparable discriminative power to distinguish between high and low patient global scores (standardized mean difference: HAQ:-1.29, cHAQ:-1.35). Kappa value between HAQ and cHAQ functional states indicated good agreement (0.83). Correlational validity: baseline HAQ and cHAQ, respectively, correlated well with patient global scores (r = 0.65/0.67). Bland-Altman plots showed good agreement across all functional states. Construct validity: HAQ and cHAQ discriminated equally well between patients reporting symptom state as acceptable vs not, and across responses to an external anchor. Aiming for a common algorithm, the RA conversion algorithm was validated for PsA and axSpA with similar results.

CONCLUSION

This study suggests that in observational datasets with only the MDHAQ available, a simple algorithm allows valid conversion to HAQ on the group level in RA, PsA and axSpA.

Work disability and rheumatoid arthritis: Predictive factors

BACKGROUND

Rheumatoid arthritis is often associated with work disability, a term used to describe the inability to be or to remain employed. Work disability is a common implication of rheumatoid arthritis.

OBJECTIVE

This review aims to identify and analyze the predictive factors of work disability among patients with rheumatoid arthritis, as well as to group these factors into broader categories, based on the most current studies in this field.

METHODS

An electronic search was conducted using Google Scholar, MEDLINE and PsycINFO databases. Eighty-six international journal articles were finally selected.

RESULTS

The results suggest that occupational, personal, medical and societal factors are the main predictive categories of work disability for people with rheumatoid arthritis.

CONCLUSIONS

Medical progress has had a positive effect on the development and the rates of work disability among patients with RA. Work disability is, however, not only defined by medical factors. Occupational, personal and societal factors interact with each other and affect the development of work disability in RA. The results of this review emphasize the need for medical and vocational therapy interventions, social support and state policies that target the work status of patients with RA. Future holistic research approaches to the field are required for a complete picture and concrete solutions with the aim of keeping patients with RA employed.

Methodological aspects of design, analysis and reporting of studies with work participation as an outcome domain in patients with inflammatory arthritis: results of two systematic literature reviews informing EULAR points to consider

Objective

To summarise the methodological aspects in studies with work participation (WP) as outcome domain in inflammatory arthritis (IA) and other chronic diseases.

Methods

Two systematic literature reviews (SLRs) were conducted in key electronic databases (2014–2019): search 1 focused on longitudinal prospective studies in IA and search 2 on SLRs in other chronic diseases. Two reviewers independently identified eligible studies and extracted data covering pre-defined methodological areas.

Results

In total, 58 studies in IA (22 randomised controlled trials, 36 longitudinal observational studies) and 24 SLRs in other chronic diseases were included. WP was the primary outcome in 26/58 (45%) studies. The methodological aspects least accounted for in IA studies were as follows (proportions of studies positively adhering to the topic are shown): aligning the studied population (16/58 (28%)) and sample size calculation (8/58 (14%)) with the work-related study objective; attribution of WP to overall health (28/58 (48%)); accounting for skewness of presenteeism/sick leave (10/52 (19%)); accounting for work-related contextual factors (25/58 (43%)); reporting attrition and its reasons (1/58 (2%)); reporting both aggregated results and proportions of individuals reaching predefined meaningful change or state (11/58 (16%)). SLRs in other chronic diseases confirmed heterogeneity and methodological flaws identified in IA studies without identifying new issues.

Conclusion

High methodological heterogeneity was observed in studies with WP as outcome domain. Consensus around various methodological aspects specific to WP studies is needed to improve quality of future studies. This review informs the EULAR Points to Consider for conducting and reporting studies with WP as an outcome in IA.

Predictors of presenteeism, absenteeism and job loss in patients commencing methotrexate or biologic therapy for rheumatoid arthritis

Objectives

Work is an important health outcome. This study aimed to identify predictors of work loss, absenteeism and presenteeism over 1 year in RA patients commencing treatment with MTX or biologics.

Methods

Patients aged 18–65 years in full/part-time employment from two UK prospective cohorts were included: MTX-starters = Rheumatoid Arthritis Medication Study; and biologic-starters = Biologics in Rheumatoid Arthritis Genetics and Genomics Study Syndicate. Presenteeism and absenteeism were assessed using the RA-specific Work Productivity Survey at baseline, and 6 and 12 months. Potential predictors including baseline age, gender, clinical measures (e.g. disability, pain, fatigue), psychological distress, occupation and EULAR response from baseline to 6 months were investigated.

Results

A total of 51/463 MTX-starters and 30/260 biologic-starters left work over 12 months. Higher baseline psychological distress in MTX-starters [odds ratio (OR) 1.1 (95% CI: 1.0, 1.1)] and higher disability in biologic-starters [OR 3.5 (95% CI: 1.4, 8.6)] predicted work loss. Some 16.1% of patients reported sick-leave, which was predicted by disability [OR (95% CI): MTX-starters: 1.5 (0.9, 2.3); biologic-starters: 2.4 (1.1, 5.2)]. Median presenteeism scores were very low (minimal interference) in both cohorts. Higher fatigue for MTX starters [incidence rate ratio 1.2 (95% CI: 1.0, 1.4)] and higher disability in biologic-starters (incidence rate ratio 1.4 (95% CI: 1.1, 1.7)] predicted presenteeism. Good EULAR response was associated with lower absenteeism and presenteeism in both cohorts.

Conclusion

Patients with RA still face significant limitations regarding their ability to work. Disability and EULAR response were the main predictors of work outcomes, emphasizing the need to control the disease and the importance of function in enabling work participation.

The effect of deep or sustained remission on maintenance of remission after dose reduction or withdrawal of etanercept in patients with rheumatoid arthritis

Background

Biologic disease-modifying antirheumatic drugs (bDMARDs) are important options for managing rheumatoid arthritis (RA). Once patients achieve disease control, clinicians may consider dose reduction or withdrawal of the bDMARD. Results from published studies indicate that some patients will maintain remission; however, others will flare. We analyzed data from three etanercept down-titration studies in patients with RA to determine what extent of remission provides the greatest predictability of maintaining remission following dose reduction or discontinuation.

Methods

Patients with moderate to severe RA from the PRESERVE, PRIZE, and Treat-to-Target (T2T) randomized controlled trials were included. We determined the proportion of patients achieving remission with etanercept at the last time point in the induction period, and sustained remission (last two time points), according to the Disease Activity Score 28-joints (DAS28), the American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) Boolean criteria, and the clinical disease activity index (CDAI). We also calculated the proportion achieving DAS28 deep remission (DAS28 ≤ 1.98), sustained deep remission (last two time points), and low disease activity (LDA), and LDA according to the CDAI. Then, we evaluated whether they maintained remission or LDA following etanercept dose reduction or withdrawal.

Results

Patients achieving sustained and/or deep remission were more likely than patients achieving remission or LDA to maintain remission/LDA after etanercept dose reduction or withdrawal. In PRESERVE, the proportions of patients with DAS28 sustained deep remission, deep remission, sustained remission, remission, and LDA who maintained remission following etanercept dose reduction were 81%, 67%, 58%, 56%, and 36%, respectively, P < 0.001 for trend. In PRESERVE, this trend was significant when etanercept was discontinued and when ACR/EULAR Boolean and CDAI remission criteria were used. Although some sample sizes were small, the PRIZE and T2T studies also demonstrated response trends according to ACR/EULAR Boolean and CDAI remission criteria, and T2T demonstrated response trends according to DAS28.

Conclusions

These results suggest that patients achieving disease control according to a stringent definition, such as sustained ACR/EULAR Boolean or CDAI remission, or a new definition of sustained deep remission by DAS28, have a higher probability of remaining in remission or LDA following etanercept dose reduction or withdrawal.

Trial registration

PRESERVE: ClinicalTrials.gov identifier: NCT00565409, registered 30 November 2007; PRIZE: ClinicalTrials.gov identifier: NCT00913458, registered 4 June 2009; T2T: ClinicalTrials.gov identifier: NCT01578850, registered 17 April 2012

Electronic supplementary material

The online version of this article (10.1186/s13075-019-1937-4) contains supplementary material, which is available to authorized users.