scholarly journals Validation of the self-administered comorbidity questionnaire adjusted for spondyloarthritis: results from the ASAS-COMOSPA study

Rheumatology ◽  
2019 ◽  
Vol 59 (7) ◽  
pp. 1632-1639
Author(s):  
Carmen Stolwijk ◽  
Ivette Essers ◽  
Filip van den Bosch ◽  
Maxime Dougados ◽  
Adrien Etcheto ◽  
...  
Keyword(s):  
Rheumatic Disease ◽  
Construct Validity ◽  
Disease Activity ◽  
Physical Function ◽  
Health Utility ◽  
The Self ◽  
Self Report ◽  
Work Limitations ◽  
Patient Reported ◽  
Comorbidity Index

Abstract Objective To confirm validity of the Self-administered Comorbidity Questionnaire modified for patients with SpA (mSCQ), and assess whether validity improves when adding items on extra-articular manifestations (EAMs), i.e. uveitis, psoriasis, and IBD, and osteoporosis and fractures. Methods Data from the Assessment in SpondyloArthritis international Society COMOrbidities in SPondyloArthritis study were used. Criterion validity of presence of EAMs, osteoporosis and fractures was assessed as agreement (kappa) between patients’ self-reported and physician-confirmed disease. Construct validity of the mSCQ including EAMs, osteoporosis and/or fractures (SpA-SCQ) was assessed by testing hypotheses about correlations with demographics, physical function, work ability, health utility and disease activity, and was compared with construct validity of the rheumatic disease comorbidity index. Results In total, 3984 patients contributed to the analyses. Agreement between patient-reported and physician-reported EAMs was substantial to almost perfect (uveitis ĸ = 0.81, IBD ĸ = 0.73, psoriasis ĸ = 0.86). Agreement for osteoporosis (ĸ = 0.38) and fractures (ĸ = 0.39) was fair. As hypothesized, the mSCQ correlated moderately to weakly with age, physical function, work limitations and health utility, and very weakly with disease activity. In contrast to our hypothesis, adding EAMs, osteoporosis and/or fractures to the mSCQ decreased correlations with several external constructs, especially among patients with peripheral SpA. Correlations with the different constructs were stronger for the both mSCQ and SpA-SCQ (rBASFI = 0.34; rEQ-5D = −0.33) compared with the rheumatic disease comorbidity index (rBASFI = 0.24; rEQ-5D = −0.21). Conclusion The mSCQ is a valid self-report instrument to assess the influence of comorbidities on health outcomes in patients with SpA. Adding EAMs and/or osteoporosis or fractures does not improve validity of the mSCQ.

Reliability, Validity and Responsiveness of Physical Activity Monitors in Patients with Inflammatory Myopathy

Rheumatology ◽  
2021 ◽  
Author(s):  
Bonny Rockette-Wagner ◽  
Didem Saygin ◽  
Siamak Moghadam-Kia ◽  
Chester Oddis ◽  
Océane Landon-Cardinal ◽  
...  
Keyword(s):  
Physical Activity ◽  
Construct Validity ◽  
Disease Activity ◽  
Retest Reliability ◽  
Activity Monitors ◽  
Muscle Testing ◽  
Patient Reported ◽  
Physical Activity Monitors ◽  
Global Disease Activity ◽  
Test Retest Reliability

Abstract Objective Idiopathic inflammatory myopathies (IIM) cause proximal muscle weakness, which affect activities of daily living. Wearable physical activity monitors (PAMs) objectively assess continuous activity with potential clinical usefulness in IIM assessment. We examined the psychometric characteristics for PAM outcomes in IIM. Methods Adult IIM patients were prospectively evaluated (baseline, 3 and 6-months) in an observational study. A waist-worn PAM (ActiGraph GT3X-BT) assessed average step counts/min, peak 1-min cadence, and vector magnitude/min. Validated myositis core set measures (CSM) including manual muscle testing (MMT), physician global disease activity (MD global), patient global disease activity (Pt global), extra-muscular disease activity (Ex-muscular global), HAQ-DI, muscle enzymes, and patient-reported physical function were evaluated. Test-retest reliability, construct validity, and responsiveness were determined for PAM measures and CSM using Pearson correlations and other appropriate analyses. Results 50 adult IIM patients enrolled [mean (SD) age, 53.6 (±14.6); 60% female, 94% Caucasian]. PAM measures showed strong test-retest reliability, moderate-to-strong correlations at baseline with MD global (r=-0.37- -0.48), Pt-global (r=-0.43- -0.61), HAQ-DI (r=-0.47- -0.59) and MMT (r = 0.37–0.52), and strong discriminant validity for categorical MMT and HAQ-DI. Longitudinal association with MD global (r=-0.38- -0.44), MMT (r = 0.50–0.57), HAQ-DI (r=-0.45- -0.55), and functional tests (r = 0.30–0.65) were moderate-to-strong. PAM measures were responsive to MMT improvement (≥10%) and moderate-to-major improvement on ACR/EULAR myositis response criteria. Peak 1-min cadence had the largest effect size and Standardized Response Means (SRMs). Conclusion PAM measures showed promising construct validity, reliability, and longitudinal responsiveness; especially peak 1-min cadence. PAMs provide valid outcome measures for future use in IIM clinical trials.

Psychometric Properties and Construct Validity of the Short Version of the Self-Report Psychopathy Scale in a Southern European Sample

2019 ◽  
Vol 102 (4) ◽  
pp. 457-468 ◽  
Author(s):  
Ana Seara-Cardoso ◽  
Andreia Queirós ◽  
Eugénia Fernandes ◽  
Joana Coutinho ◽  
Craig Neumann
Keyword(s):  
Construct Validity ◽  
Psychometric Properties ◽  
The Self ◽  
Self Report ◽  
Short Version

Validation of the Lupus Impact Tracker in an Australian patient cohort

Lupus ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 98-105 ◽  
Author(s):  
A Antony ◽  
R K Kandane-Rathnayake ◽  
T Ko ◽  
D Boulos ◽  
A Y Hoi ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Socioeconomic Status ◽  
Construct Validity ◽  
Disease Activity ◽  
Lupus Erythematosus ◽  
Criterion Validity ◽  
Systemic Lupus ◽  
Specific Patient ◽  
Patient Reported ◽  
Fit Index

Objectives The objective of this article is to validate the Lupus Impact Tracker (LIT), a disease-specific patient-reported outcome (PRO) tool, in systemic lupus erythematosus (SLE) patients in a multi-ethnic Australian cohort. Methods Patients attending the Monash Lupus Clinic were asked to complete the LIT, a 10-item PRO. Psychometric testing assessing criterion validity, construct validity, test-retest reliability (TRT) and internal consistency reliability (ICR) were performed. We compared the LIT scores across patient characteristics, and correlations between LIT scores and SLEDAI-2k, PGA, and SLICC-SDI were examined. Results LIT data were obtained from 73 patients. Patients were 84% female with a median age of 41 years, and 34% were Asian. The cohort had mild-moderate disease activity with a median (IQR) Systemic Lupus Erythematosus Disease Activity Index-2000 (SLEDAI-2k) of 4 (IQR 2–6). The median LIT score was 32.5 (IQR 17.5–50). LIT demonstrated criterion validity against SLEDAI-2k and SDI. Construct validity assessed by confirmatory factor analysis demonstrated an excellent fit (Goodness of fit index 0.95, Comparative Fit Index 1, Root Mean Square Error of Approximation <0.0001). The LIT demonstrated TRT with an overall intraclass correlation coefficient of 0.986 (95% CI 0.968–0.995). ICR was demonstrated with a Cronbach’s alpha of 0.838. Patients with disability, low socioeconomic status, or higher disease activity had significantly worse LIT scores. Conclusion The LIT demonstrated properties consistent with its being valid in this population. Lower socioeconomic status appears to have a significant impact on patient-reported health-related quality of life in SLE.

Private Self-Consciousness as a Moderator Variable?

1987 ◽  
Vol 60 (1) ◽  
pp. 303-312
Author(s):  
John W. Osborne ◽  
T. O. Maguire ◽  
N. Angus
Keyword(s):  
Construct Validity ◽  
Predictive Validity ◽  
The Self ◽  
Self Report ◽  
Use Of Self ◽  
Moderator Variable ◽  
Method Variance ◽  
Methodological Difficulties

Previous studies suggested that private self-consciousness may function as a moderator of the predictive validity of self-report measures of personality. This paper critically examined the construct validity of the Self-consciousness Scale used to measure private self-consciousness. The conceptual and methodological difficulties involved in measuring private self-consciousness are discussed with particular reference to the ubiquity of self-consciousness theory and the problem of method variance associated with the exclusive use of self-report in validating the Self-consciousness Scale. A phenomenologically derived profile of test experience is offered as a way of checking the validity of self-reported measures.

The 12-item Psoriatic Arthritis Impact of Disease Questionnaire: Construct Validity, Reliability, and Interpretability in a Clinical Setting

2016 ◽  
Vol 44 (3) ◽  
pp. 279-285 ◽  
Author(s):  
Marco Di Carlo ◽  
Andrea Becciolini ◽  
Valentina Lato ◽  
Chiara Crotti ◽  
Ennio Giulio Favalli ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Construct Validity ◽  
Disease Activity ◽  
Convergent Validity ◽  
Activity Index ◽  
Multivariable Analysis ◽  
Real Life ◽  
Life Quality ◽  
Biologic Treatment ◽  
Patient Reported

Objective.To study, in a real-life setting, the construct validity, the reliability, and the interpretability of the 12-item Psoriatic Arthritis Impact of Disease (PsAID-12) questionnaire in patients with psoriatic arthritis (PsA).Methods.In 144 consecutive patients with PsA (81 men and 63 women, mean age of 51.4 ± 12.8 yrs, and 77 receiving biologic treatment), the PsAID-12 and other patient-reported outcomes (PRO) were collected, such as the Dermatology Life Quality Index. Each patient underwent articular and skin assessment.Results.Construct validity: Factor analysis revealed a 2-factor result defined as the PsAID Symptom Score and the PsAID Skin Score. In determining convergent validity, significant correlations were found between the PsAID-12 and the clinical Disease Activity index for Psoriatic Arthritis (cDAPSA; ρ = 0.867, p < 0.0001). Multivariable analysis showed that the PsAID-12 is determined by the articular disease activity (cDAPSA, p < 0.0001), severity of psoriasis (PsO; physician’s global assessment, p < 0.0001), and the presence of a coexisting fibromyalgia (FM; p < 0.0001). Reliability: Cronbach’s alpha coefficient was 0.93 for the total PsAID-12. Interpretability: Applying the cDAPSA categorization of disease activity states, the PsAID-12 cutoff values resulted in 1.4 between remission and low disease activity (LDA), 4.1 between LDA and moderate disease activity (MDA), and 6.7 between MDA and high disease activity.Conclusion.The PsAID-12 is an excellent PRO to evaluate the effect of PsA. It should be carefully handled in patients with coexisting FM.

scholarly journals Associations between Patient Global Assessment scores and pain, physical function, and fatigue in rheumatoid arthritis: a post hoc analysis of data from phase 3 trials of tofacitinib

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Vibeke Strand ◽  
Jeffrey Kaine ◽  
Rieke Alten ◽  
Gene Wallenstein ◽  
Annette Diehl ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Physical Function ◽  
Global Assessment ◽  
Janus Kinase ◽  
Patient Global Assessment ◽  
Normative Values ◽  
Post Hoc Analysis ◽  
Patient Reported ◽  
Post Hoc

Abstract Background Tofacitinib is an oral Janus kinase inhibitor for the treatment of rheumatoid arthritis (RA). We examined the degree to which Patient Global Assessment of Disease Activity (PtGA) was driven by patient-reported assessments of pain (Pain), physical function, and fatigue in patients receiving tofacitinib 5 mg twice daily or placebo, each with conventional synthetic disease-modifying antirheumatic drugs (csDMARDs). Methods This post hoc analysis used data pooled from three randomized controlled trials in csDMARD-inadequate responder (csDMARD-IR) patients (ORAL Scan: NCT00847613; ORAL Standard: NCT00853385; ORAL Sync: NCT00856544). Using subgroup analysis from 2 × 2 tables, associations between PtGA and Pain, Health Assessment Questionnaire-Disability Index (HAQ-DI), and Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) at month 3 were evaluated using Pearson’s Phi correlation coefficients. To support the main analysis, associations between select patient-reported outcomes (PROs) were also evaluated in csDMARD-naïve (ORAL Start; NCT01039688) and biologic (b)DMARD-IR (ORAL Step; NCT00960440) patients. Results Across csDMARD-IR treatment groups, low disease activity (defined as PtGA ≤ 20 mm), and moderate (≥ 30%) and substantial (≥ 50%) improvements from baseline in PtGA were associated with mild Pain (Visual Analog Scale score ≤ 20 mm), and moderate (≥ 30%) and substantial (≥ 50%) improvements from baseline in Pain; lack of Pain improvement was associated with little/no improvement in PtGA. In contrast, large proportions of csDMARD-IR patients who reported PtGA improvements did not report HAQ-DI or FACIT-F scores ≥ normative values (≤ 0.25 and ≥ 43.5, respectively) or changes in HAQ-DI or FACIT-F scores ≥ minimum clinically important difference (≥ 0.22 and ≥ 4.0, respectively). Generally, PtGA and Pain outcomes were moderately-to-strongly correlated at month 3 in csDMARD-IR patients, with weaker correlations evident between PtGA and HAQ-DI/FACIT-F outcomes. Similar findings were generally evident in csDMARD-naïve and bDMARD-IR patients. Conclusions This analysis supports the role of Pain as a key driver of PtGA in RA; physical function and fatigue play lesser roles in patients’ perceptions of disease activity. These findings corroborate the importance of improved PROs and attainment of low symptom states for optimizing patient care. Trial registration Clinicaltrials.gov: NCT00847613 (registered: February 19, 2009); NCT00853385 (registered: March 2, 2009); NCT00856544 (registered: March 5, 2009); NCT01039688 (registered: December 25, 2009); NCT00960440 (registered: August 17, 2009)

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