Aspects of validity of the self-administered comorbidity questionnaire in patients with ankylosing spondylitis

Stolwijk, C.; Tubergen, Astrid van; Ramiro, Sofía; Essers, Ivette; Blaauw, Marc; Heijde, Desirée van der; Landewé, Robert; Bosch, Filip Van den; Dougados, Maxime; Boonen, Annelies

doi:10.1093/rheumatology/ket354

Cited by 33 publications

(38 citation statements)

References 36 publications

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“…Supplementary Table 2 (available in the online version of this article at http:// onlinelibrary.wiley.com/doi/10.1002/acr.22573/abstract) shows the patient and study characteristics of the included studies as well as work outcomes reported in the included studies. Of the 25 studies, 22 were crosssectional (1,(5)(6)(7)(8)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35), 1 case-control (2), and 2 longitudinal (36,37). Different terminology was used to define work status.…”

Section: Resultsmentioning

confidence: 99%

Importance of Contextual Factors When Measuring Work Outcome in Ankylosing Spondylitis: A Systematic Review by the OMERACT Worker Productivity Group

Stolwijk

Castillo-Ortiz

Gignac

et al. 2015

Arthritis Care & Research

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Objective. To review the literature on contextual factors (CoFas) and their relationship to work outcomes in individuals with ankylosing spondylitis (AS). Methods. Articles that quantified the relationship between CoFas and employment status, sick leave, or presenteeism in individuals with AS were systematically identified. CoFas were classified into 5 domains for personal factors and 8 domains for environmental factors. We defined criteria for best-evidence synthesis for each CoFa domain based on the number of studies exploring that domain, and the quality of evidence of individual studies based on the risk of bias, adjustment of multivariable analyses for disease activity and physical function, and sample size. Results. Twenty-five studies met our inclusion criteria: 20 addressed employment status, 6 examined sick leave, and 3 presenteeism. For employment, there was strong evidence for the role of age, moderate evidence for related skills/abilities, the absence of work accommodations, the nature of work and absence of workplace support, and poor evidence for the role of marital status. Evidence was insufficient for sex, education, and physical environment. For sick leave and presenteeism there were too few studies to perform a best-evidence synthesis for the role of CoFas. Conclusion. Using a newly proposed set of criteria for determining the best-evidence of the association between CoFa domains and work outcome, the following factors emerged: age, related skills/abilities, work accommodations, nature of work, and workplace support. In addition to disease-related variables, these CoFa domains seem important to include when designing and interpreting studies on work outcomes.

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Section: Resultsmentioning

confidence: 99%

Importance of Contextual Factors When Measuring Work Outcome in Ankylosing Spondylitis: A Systematic Review by the OMERACT Worker Productivity Group

Stolwijk

Castillo-Ortiz

Gignac

et al. 2015

Arthritis Care & Research

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“…Medical comorbidity is measured using an adapted and simplified version of the Self‐Administered Comorbidity Questionnaire (SCQ‐18), where higher scores indicate a more severe comorbidity profile.…”

Section: Methodsmentioning

confidence: 99%

Health literacy: a new piece of the puzzle in psoriasis care? A cross‐sectional study

Larsen¹,

Strumse

Borge³

et al. 2019

Br J Dermatol

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Summary Background Health literacy (HL) – the ability to seek, understand and utilize health information – is important for good health. Suboptimal HL has been associated with poorer health outcomes in other chronic conditions, although this has not previously been studied in patients with psoriasis. Objectives To investigate the HL strengths and weaknesses of a cohort of patients with moderate‐to‐severe psoriasis. Another aim was to examine possible associations between patients’ quality of life, their demographic, clinical and self‐management characteristics, and dimensions of HL. Methods A cross‐sectional study was conducted. Data were collected from a cohort of patients with psoriasis who had received climate helio therapy from 2011 to 2016 (n = 825). HL was assessed by the Health Literacy Questionnaire (HLQ). The association between HL domains, demographic, clinical and self‐management variables were analysed using bivariate correlation and a four‐step linear multiple regression model. Results The scores on all HLQ dimensions indicated lower health literacy than other populations. The linear regression models showed a significant association between HL, quality of life and self‐management variables, with higher HL predicting higher quality of life, self‐efficacy and psoriasis knowledge. Sex, educational attainment, age and disease severity had less influence on health literacy. Conclusions Improving HL may be a useful strategy for reducing disparities in self‐management skills for patients with psoriasis. Interventions that aim to reduce disease severity and increase psoriasis knowledge, self‐efficacy and quality of life may positively increase HL.

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“…The presence of extraarticular manifestations (uveitis, psoriasis, and inflammatory bowel disease [IBD]) and of comorbidities was retrieved from the medical records. In order to represent in the analyses the influence of comorbidities on work outcome, the Rheumatic Disease Comorbidity Index (RDCI) was calculated (range 0–9), representing the weighted sum score of common comorbidities (lung disease, diabetes mellitus, hypertension, myocardial infarction, stroke, other heart disease, cancer, fracture [spine, hip, or leg], gastrointestinal ulcer, other gastrointestinal problems, and depression) . In addition, patients underwent clinical examination, which allowed calculating the Bath Ankylosing Spondylitis Metrology Index (BASMI) to assess spinal mobility .…”

Section: Methodsmentioning

confidence: 99%

Work Outcome in Patients With Ankylosing Spondylitis: Results From a 12‐Year Followup of an International Study

Castillo-Ortiz

Ramiro

Landewé

et al. 2016

Arthritis Care & Research

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Objective. To understand the impact of ankylosing spondylitis (AS) on work disability (WD) over 12 years compared with the general population, and explore factors predicting adverse work outcome, defined as new partial WD or reduction in working hours. Methods. Source of data was the Outcome Assessments in Ankylosing Spondylitis International Study, which includes patients from The Netherlands, France, and Belgium. Standardized WD rates over time compared to the general population were calculated using indirect standardization (Dutch patients only). Cox survival analyses identified baseline predictors as well as time-varying factors influencing adverse work outcome over 12 years. Results. Of 215 patients, 55 (26%) were full WD at baseline and 139 (65%) were at risk for adverse work outcome during followup. When compared to the general population, WD over 12 years continued to be increased in Dutch men (inci- . Time-varying predictors over 12 years were residence in The Netherlands, uveitis, and either BASFI or Bath Ankylosing Spondylitis Disease Activity Index with age and inflammatory bowel disease. Conclusion. Although WD was already prevalent at inclusion in the cohort, a substantial proportion of patients incurred further adverse work outcome over 12 years. In addition to country of residence, uveitis, age, and selfreported physical function or disease activity predicted long-term adverse work outcome.

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Aspects of validity of the self-administered comorbidity questionnaire in patients with ankylosing spondylitis

Abstract: The SCQ is a promising instrument to determine comorbidities and to understand the impact on health outcomes in patients with AS. Excluding rheumatic conditions from the SCQ (mSCQ) improved validity.

Cited by 33 publications

References 36 publications

Importance of Contextual Factors When Measuring Work Outcome in Ankylosing Spondylitis: A Systematic Review by the OMERACT Worker Productivity Group

Importance of Contextual Factors When Measuring Work Outcome in Ankylosing Spondylitis: A Systematic Review by the OMERACT Worker Productivity Group

Health literacy: a new piece of the puzzle in psoriasis care? A cross‐sectional study

Work Outcome in Patients With Ankylosing Spondylitis: Results From a 12‐Year Followup of an International Study

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