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      Depression is a stronger predictor of the risk to consider work disability in early arthritis than disease activity or response to therapy

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          Abstract

          Objectives

          To evaluate the factors that influence patients with early inflammatory arthritis to consider a disability pension.

          Methods

          A total of 528 patients aged 63 or younger from an early arthritis cohort with a mean symptom duration of 3 months at inclusion were asked at 12 and 24 months whether they were considering applying for, had applied for or were receiving a disability pension because of arthritis. Possible predictors were analysed with univariate and multivariate logistic regression.

          Results

          69 patients (13%) were considering, had applied for or were receiving a disability pension. Univariate predictors were older age, disease activity, several patient-reported outcomes and depression. In a multivariate analysis, age, days on sick leave, impairment of physical function and depression were predictive for considering a disability pension (OR for severe vs no depression: 3.85, 95% CI 1.43 to 10.4).

          Conclusions

          In patients with early arthritis, depression appears to be a stronger predictor of the risk to consider applying for work disability pension than the features of disease activity. Patients at risk could be identified with one single depression statement. This finding should prompt physicians to react early to signs and symptoms of depression to help patients to maintain their ability to work.

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          Most cited references15

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          Finalisation and validation of the rheumatoid arthritis impact of disease score, a patient-derived composite measure of impact of rheumatoid arthritis: a EULAR initiative.

          A patient-derived composite measure of the impact of rheumatoid arthritis (RA), the rheumatoid arthritis impact of disease (RAID) score, takes into account pain, functional capacity, fatigue, physical and emotional wellbeing, quality of sleep and coping. The objectives were to finalise the RAID and examine its psychometric properties. An international multicentre cross-sectional and longitudinal study of consecutive RA patients from 12 European countries was conducted to examine the psychometric properties of the different combinations of instruments that might be included within the RAID combinations scale (numeric rating scales (NRS) or various questionnaires). Construct validity was assessed cross-sectionally by Spearman correlation, reliability by intraclass correlation coefficient (ICC) in 50 stable patients, and sensitivity to change by standardised response means (SRM) in 88 patients whose treatment was intensified. 570 patients (79% women, mean ± SD age 56 ± 13 years, disease duration 12.5 ± 10.3 years, disease activity score (DAS28) 4.1 ± 1.6) participated in the validation study. NRS questions performed as well as longer combinations of questionnaires: the final RAID score is composed of seven NRS questions. The final RAID correlated strongly with patient global (R=0.76) and significantly also with other outcomes (DAS28 R=0.69, short form 36 physical -0.59 and mental -0.55, p<0.0001 for all). Reliability was high (ICC 0.90; 95% CI 0.84 to 0.94) and sensitivity to change was good (SRM 0.98 (0.96 to 1.00) compared with DAS28 SRM 1.06 (1.01 to 1.11)). The RAID score is a patient-derived composite score assessing the seven most important domains of impact of RA. This score is now validated; sensitivity to change should be further examined in larger studies.
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            Work disability remains a major problem in rheumatoid arthritis in the 2000s: data from 32 countries in the QUEST-RA Study

            Introduction Work disability is a major consequence of rheumatoid arthritis (RA), associated not only with traditional disease activity variables, but also more significantly with demographic, functional, occupational, and societal variables. Recent reports suggest that the use of biologic agents offers potential for reduced work disability rates, but the conclusions are based on surrogate disease activity measures derived from studies primarily from Western countries. Methods The Quantitative Standard Monitoring of Patients with RA (QUEST-RA) multinational database of 8,039 patients in 86 sites in 32 countries, 16 with high gross domestic product (GDP) (>24K US dollars (USD) per capita) and 16 low-GDP countries (<11K USD), was analyzed for work and disability status at onset and over the course of RA and clinical status of patients who continued working or had stopped working in high-GDP versus low-GDP countries according to all RA Core Data Set measures. Associations of work disability status with RA Core Data Set variables and indices were analyzed using descriptive statistics and regression analyses. Results At the time of first symptoms, 86% of men (range 57%-100% among countries) and 64% (19%-87%) of women <65 years were working. More than one third (37%) of these patients reported subsequent work disability because of RA. Among 1,756 patients whose symptoms had begun during the 2000s, the probabilities of continuing to work were 80% (95% confidence interval (CI) 78%-82%) at 2 years and 68% (95% CI 65%-71%) at 5 years, with similar patterns in high-GDP and low-GDP countries. Patients who continued working versus stopped working had significantly better clinical status for all clinical status measures and patient self-report scores, with similar patterns in high-GDP and low-GDP countries. However, patients who had stopped working in high-GDP countries had better clinical status than patients who continued working in low-GDP countries. The most significant identifier of work disability in all subgroups was Health Assessment Questionnaire (HAQ) functional disability score. Conclusions Work disability rates remain high among people with RA during this millennium. In low-GDP countries, people remain working with high levels of disability and disease activity. Cultural and economic differences between societies affect work disability as an outcome measure for RA.
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              Systematic review of studies of productivity loss due to rheumatoid arthritis.

              Rheumatoid arthritis (RA) is a chronic, debilitating disease with a significant impact on workplace productivity. To perform a systematic review of studies of the relationship between RA and reduced workplace productivity. Screening of 307 titles identified in bibliographic database searches resulted in 38 articles subject to systematic review. Productivity loss was expressed by three different measures: work disability, work loss (synonymous with absenteeism or short-term sick leave) and work limitation (reduction in productivity while present at work). A median of 66% (range 36-84%) of employed RA subjects experienced work loss due to RA in the previous 12 months, for a median duration of 39 days (range 7-84 days). The times from RA diagnosis until a 50% probability of being work disabled varied from 4.5 to 22 years. In inception cohort studies, the baseline variables consistently predictive of subsequent work disability were a physically demanding work type, more severe RA and older age. RA-related work-disability rates were similar in the USA and European countries. An apparent decrease in the prevalence of RA-related work disability since the 1970s may be related to a decrease in physically demanding work rather than to epidemiologic changes in RA. The majority of the literature addresses permanent disability and temporary work loss; none of the studies reviewed reported the effect of RA on presenteeism, i.e. work limitation from the employer perspective, and there are few published studies of the effectiveness of disease-modifying anti-rheumatic drugs in reducing work-related productivity loss.
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                Author and article information

                Journal
                RMD Open
                RMD Open
                rmdopen
                rmdopen
                RMD Open
                BMJ Publishing Group (BMA House, Tavistock Square, London, WC1H 9JR )
                2056-5933
                2015
                20 February 2015
                : 1
                : 1
                : e000020
                Affiliations
                [1 ]Department of Epidemiology, German Rheumatism Research Centre , Berlin, Germany
                [2 ]Department of Internal Medicine, University of Erlangen-Nuremberg , Erlangen, Germany
                [3 ]Department of Rheumatology and Clinical Immunology, Charité University Medicine Berlin, Campus Mitte , Berlin, Germany
                Author notes

                †GW died in June 2014.

                [Correspondence to ] Johanna Callhoff; johanna.callhoff@ 123456drfz.de
                Article
                rmdopen-2014-000020
                10.1136/rmdopen-2014-000020
                4612683
                26509053
                acea80de-80d8-4ef1-b1c8-dfdc786716be
                Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions

                This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/

                History
                : 12 November 2014
                : 14 January 2015
                : 18 January 2015
                Categories
                Rheumatoid Arthritis
                1506
                Concise report

                early rheumatoid arthritis,epidemiology,patient perspective

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