scholarly journals Evaluation of Clinical Diagnosis of Axial Psoriatic Arthritis or Elevated Patient-Reported Spine Pain in CorEvitas' Psoriatic Arthritis/Spondyloarthritis Registry

2021 ◽  
pp. jrheum.210662
Author(s):  
Alexis Ogdie ◽  
Taylor Blachley ◽  
Paul R. Lakin ◽  
Blessing Dube ◽  
Robert R. McLean ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Multinomial Logistic Regression ◽  
Unmet Need ◽  
Disease Activity Index ◽  
Patient Characteristics ◽  
Spine Pain ◽  
Patient Reported ◽  
Pain Visual Analog Scale

Objective To determine the presence of axial symptoms in patients with psoriatic arthritis (PsA) and examine differences between those with or without a diagnosis of axial PsA (axPsA). Methods Patients with PsA at their CorEvitas' (formerly Corrona) Psoriatic Arthritis/Spondyloarthritis Registry enrollment visit were stratified into 4 mutually exclusive groups based on axial manifestations: physician-diagnosed axPsA only (Dx+Sx-), patient-reported elevated spine symptoms only (Dx-Sx+; defined as Bath Ankylosing Spondylitis Disease Activity Index ≥4 and spine pain visual analog scale ≥40), physician-diagnosed and patient-reported (Dx+Sx+), and no axial manifestations (Dx-Sx-). Patient characteristics, disease activity, and patient-reported outcomes (PROs) at enrollment in each axial manifestation group were compared with the Dx-Sx- group. Associations of patient characteristics with the odds of having axial manifestations were estimated using multinomial logistic regression (reference: Dx-Sx-). Results Of 3393 patients included, 226 (6.7%) had Dx+Sx-, 698 (20.6%) had Dx-Sx+, 165 (4.9%) had Dx+Sx+, and 2304 (67.9%) had Dx-Sx-. Patients with Dx-Sx+ or Dx+Sx+ were more frequently women and had a history of depression and fibromyalgia vs patients who had Dx-Sx-. Patients with Dx+Sx- or Dx+Sx+ were more frequently HLA-B27 positive than those with Dx-Sx-. Fibromyalgia was significantly associated with increased odds of Dx+Sx- or Dx+Sx+. Disease activity and PROs were worse in patients with Dx-Sx+ or Dx+Sx+ than in those with Dx-Sx-. Conclusion Patients who had self-reported elevated spine symptoms, with or without physician-diagnosed axPsA, had worse quality of life and higher disease activity overall than patients without axial manifestations, suggesting an unmet need in this patient population.

scholarly journals DAPSA and ultrasound show different perspectives of psoriatic arthritis disease activity: results from a 12-month longitudinal observational study in patients starting treatment with biological disease-modifying antirheumatic drugs

RMD Open ◽  
2018 ◽  
Vol 4 (2) ◽  
pp. e000765 ◽  
Author(s):  
Silva Pukšić ◽  
Pernille Bolton-King ◽  
Joseph Sexton ◽  
Brigitte Michelsen ◽  
Tore K Kvien ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Clinical Assessment ◽  
Global Assessment ◽  
Activity Index ◽  
Power Doppler ◽  
Disease Activity Index ◽  
Patient Reported Outcome Measures ◽  
Joint Disease ◽  
Patient Reported

ObjectivesDisease Activity index for PSoriatic Arthritis (DAPSA) (sum score 68/66 tender/swollen joint counts (68TJC/66SJC), patient’s global assessment, pain and C-reactive protein (CRP)) is recommended for clinical assessment of disease activity in patients with psoriatic arthritis (PsA). Ultrasound (US) (grey scale (GS) and power Doppler (PD)) detects inflammation in joints and extra-articular structures. The present objectives were to explore the longitudinal relationships between DAPSA, clinical assessment as well as patient-reported outcome measures (PROMs) with US in patients with PsA initiating biological DMARDs and the associations between DAPSA and US remission.Methods47 patients with PsA were examined at baseline and after 3, 6, 9 and 12 months. Assessments included 68TJC/66SJC, examiner’s global assessment (EGA), PROMs, CRP, erythrocyte sedimentation rate (ESR) and US GS and PD (48 joints, 10 flexor tendons, 14 entheses, 4 bursae). Clinical composite scores and PD sum scores (0=remission) were calculated. Longitudinal associations were explored by generalised estimating equations with linear and logistic regression.ResultsDAPSA was not longitudinally associated to PD. 66SJC, ESR, 28-joint Disease Activity Score, EGA and CRP were longitudinally associated with PD (p<0.001–0.03), whereas the pain-related components of DAPSA (68TJC and pain) as well as PROMs were not associated. At 6–12 months, remission was achieved in 29%–33 % of the patients for DAPSA and 59%–70 % for PD. The association between DAPSA and PD remission was not significant (p=0.33).ConclusionsDAPSA was not associated with US inflammatory findings which indicates that DAPSA and US may assess different aspects of PsA activity.

scholarly journals Disease Activity in Psoriatic Arthritis: Comparison of the Discriminative Capacity and Construct Validity of Six Composite Indices in a Real World

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Fausto Salaffi ◽  
Alessandro Ciapetti ◽  
Marina Carotti ◽  
Stefania Gasparini ◽  
Marwin Gutierrez
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Real World ◽  
Disease Activity Score ◽  
Activity Index ◽  
Mental Component Summary Score ◽  
Disease Activity Index ◽  
Activity Score ◽  
Patient Reported ◽  
Activity Indices

Objective. To compare, “in a real world,” the performance of the most common composite activity indices in a cohort of PsA patients.Methods. A total of 171 PsA patients were involved. The following variables were evaluated: peripheral joint assessment, patient reported of pain, physician and patient assessments of disease activity, patient general health status, dactylitis digit count, Leeds Enthesitis Index, Health Assessment Questionnaire (HAQ), physical and mental component summary score of the Medical Outcome Survey (SF-36), Psoriasis Area and Severity Index (PASI), Dermatology Life Quality Index, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR). To measure the disease activity, the Disease Activity Score (DAS28-ESR and DAS28-CRP), Simple Disease Activity Index (SDAI), Composite Psoriatic Disease Activity Index (CPDAI), disease activity in psoriatic arthritis (DAPSA), and Psoriatic Arthritis Disease Activity Score (PASDAS) have been calculated. The criteria for minimal disease activity (MDA) and remission were applied as external criterion.Results. The ROC were similar in all the composite measures. Only the CPDAI showed less discriminative ability. There was a high degree of correlation between all the indices (P<0.0001). The highest correlations were between DAPSA and SDAI (rho = 0.996) and between DAPSA and DAS28-CRP (rho = 0.957). CPDAI, DAPSA, and PASDAS had the most stringent definitions of remission and MDA category. DAS28-ESR and DAS28-CRP had the highest proportions in remission and MDA.Conclusions. Although a good concurrent validity and discriminant capacity of six disease activity indices were observed, the proportions of patients classified in the disease activity levels differed. In particular, the rate of patients in remission was clearly different among the respective indices.

The relationship between patient acceptable symptom state and disease activity in patients with psoriatic arthritis

Rheumatology ◽  
2019 ◽  
Vol 59 (1) ◽  
pp. 69-76 ◽  
Author(s):  
Jeanie Z Fei ◽  
Anthony V Perruccio ◽  
Justine Y Ye ◽  
Dafna D Gladman ◽  
Vinod Chandran
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Area Under The Curve ◽  
Disease Activity Index ◽  
High Disease Activity ◽  
Operating Characteristics ◽  
Low Disease Activity ◽  
Patient Reported ◽  
Patient Acceptable Symptom State

Abstract Objectives The Psoriatic Arthritis Disease Activity Score (PASDAS) and Disease Activity Index for Psoriatic Arthritis (DAPSA) are composite PsA disease activity measures. We sought to identify the PASDAS and DAPSA cut-off points consistent with patient acceptable symptom state (PASS), the threshold of symptoms beyond which patients consider themselves well, and examine PASS across published PASDAS and DAPSA thresholds for low, moderate and high disease activity. Methods We used a standard protocol including physician assessment and patient-reported outcomes to prospectively record measures required to calculate PASDAS and DAPSA. We identified PASS thresholds for the PASDAS and DAPSA using receiver operating characteristics curve analyses. We assessed the frequency of reporting acceptable symptom state across disease activity thresholds for PASDAS and DAPSA scores. Results A total of 229 patients (58.5% male, mean age 55.5 years, mean disease duration 17.1 years) were recruited. The PASS threshold for the PASDAS was 3.79 [area under the curve (AUC) 0.86, sensitivity 0.75, specificity 0.82] and for the DAPSA was 11.10 (AUC 0.91, sensitivity 0.89, specificity 0.82). With the PASDAS, 90% of patients defined as having low disease activity considered their symptom state acceptable, compared with 55% and 17% among those with moderate and high disease activity, respectively. With the DAPSA, 98% of patients in disease remission considered their symptom state acceptable compared with 85, 22 and 18% among those with low, moderate and high disease activity, respectively. Conclusion We have defined PASS thresholds for PASDAS and DAPSA. The PASDAS target for low disease activity and DAPSA targets of low disease activity or remission align well with PASS.

scholarly journals Influence of Axial Involvement on Clinical Characteristics of Psoriatic Arthritis: Analysis from the Corrona Psoriatic Arthritis/Spondyloarthritis Registry

2018 ◽  
Vol 45 (10) ◽  
pp. 1389-1396 ◽  
Author(s):  
Philip J. Mease ◽  
Jacqueline B. Palmer ◽  
Mei Liu ◽  
Arthur Kavanaugh ◽  
Renganayaki Pandurengan ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Ankylosing Spondylitis ◽  
Disease Activity ◽  
Activity Index ◽  
Health Assessment ◽  
Disease Activity Index ◽  
Severe Psoriasis ◽  
Spinal Involvement ◽  
Patient Reported ◽  
Axial Involvement

Objective.We analyzed the characteristics of patients with psoriatic arthritis (PsA) with and without axial involvement in the US-based Corrona Psoriatic Arthritis/Spondyloarthritis Registry.Methods.All patients were included who had PsA and data on axial involvement, defined as physician-reported presence of spinal involvement at enrollment, and/or radiograph or magnetic resonance imaging showing sacroiliitis. Demographics, clinical measures, patient-reported outcomes, and treatment characteristics were assessed at enrollment.Results.Of 1530 patients with PsA, 192 (12.5%) had axial involvement and 1338 (87.5%) did not. Subgroups were similar in sex, race, body mass index, disease duration, presence of dactylitis, and prevalence of most comorbidities. However, patients with axial involvement were younger and more likely to have enthesitis, a history of depression, and more frequently used biologics at enrollment. They were also more likely to have moderate/severe psoriasis (body surface area ≥ 3%, 42.5% vs 31.5%) and significantly worse disease as measured by a lower prevalence of minimal disease activity (30.1% vs 46.2%) and higher nail psoriasis scores [visual analog scale (VAS) 11.4 vs 6.5], enthesitis counts (5.1 vs 3.4), Bath Ankylosing Spondylitis Disease Activity Index (4.7 vs 3.5) scores, Bath Ankylosing Spondylitis Functional Index (3.8 vs 2.5) scores, C-reactive protein levels (4.1 vs 2.4 mg/l), and scores for physical function (Health Assessment Questionnaire, 0.9 vs 0.6), pain (VAS, 47.7 vs 36.2), and fatigue (VAS, 50.2 vs 38.6).Conclusion.Presence of axial involvement was associated with a higher likelihood of moderate/severe psoriasis, with higher disease activity and greater effect on quality of life. These findings highlight the importance of monitoring patients with PsA for signs of axial symptoms or spinal involvement.

scholarly journals Residual Disease Activity and Associated Factors in Psoriatic Arthritis

2019 ◽  
Vol 47 (10) ◽  
pp. 1490-1495 ◽  
Author(s):  
Ennio Lubrano ◽  
Silvia Scriffignano ◽  
Fabio Massimo Perrotta
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Associated Factors ◽  
Residual Disease ◽  
Activity Index ◽  
Composite Index ◽  
Disease Activity Index ◽  
Psoriasis Area Severity Index ◽  
Low Disease Activity ◽  
Patient Reported

ObjectiveRemission or low disease activity should be the treatment target of psoriatic arthritis (PsA). However, residual disease activity (RDA) in some domains could persist. The aim of this study was to assess RDA and its associated factors in a group of patients with PsA.MethodsPatients with PsA were enrolled if they satisfied ClASsification for Psoriatic ARthritis (CASPAR) criteria with > 6 months’ followup and achieved a status of low disease activity (LDA), minimal disease activity (MDA), or remission [Disease Activity Index for PsA (DAPSA) remission or very low disease activity (VLDA)]. RDA was assessed by the percentage of patients who had, although in LDA or remission, tender and/or swollen joints > 1, Leeds Enthesitis Index > 1, Health Assessment Questionnaire > 0.5, Psoriasis Area Severity Index (PASI) > 1, patient’s global assessment > 20, physician visual analog scale (VAS) > 20, and VAS pain > 15. Associated factors of RDA were also assessed.ResultsOf 113 enrolled patients, 78 (69%) were in MDA. Moreover, DAPSA remission was observed in 46 (40.7%) while VLDA only in 32 (28.3%) of patients with PsA. VLDA seems to be the most stringent criterion, with a minimal RDA only in the VAS physician in 1 patient (3.1%) and none in the different domains, while patients in MDA had RDA in tender joints (14.1%), VAS pain (29.4%) and PASI > 1 or body surface area (BSA) > 3% (17.9%). Of note, although patients in DAPSA remission show a very low rate of RDA in almost all domains, 12 (26%) of them show a PASI > 1 or BSA > 3%. Finally, LDA shows RDA in higher percentages, mainly in patient-reported outcomes, tender joints, and skin domain.ConclusionRDA can be recognized in patients with PsA. VLDA seems to be the most stringent composite index to identify patients in the absence of RDA.

scholarly journals Disease Characteristics, Quality of Life, and Work Productivity by Enthesitis Site: Real- World Data From the US Corrona Psoriatic Arthritis/Spondyloarthritis Registry

2020 ◽  
pp. jrheum.191117
Author(s):  
Philip J. Mease ◽  
Mei Liu ◽  
Sabrina Rebello ◽  
Winnie Hua ◽  
Robert R. McLean ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Work Productivity ◽  
Disease Activity Index ◽  
Clinical Disease Activity Index ◽  
Clinical Disease ◽  
Work Impairment ◽  
Clinical Disease Activity ◽  
Patient Reported

Objective To assess the impact of clinical enthesitis by body site in patients with psoriatic arthritis (PsA). Methods Adults with PsA enrolled in the Corrona Psoriatic Arthritis/Spondyloarthritis Registry (March 2013–March 2018) were included. Enthesitis at enrollment was assessed via the Spondyloarthritis Research Consortium of Canada Enthesitis Index and classified by affected sites (upper, lower, or both). Disease activity (eg, Clinical Disease Activity Index, clinical Disease Activity Index for PsA), patient-reported outcomes (PROs; eg, patient-reported pain and fatigue), and work productivity were compared between those with and without enthesitis using t or Wilcoxon rank-sum tests for continuous variables and χ2 or Fisher exact tests for categorical variables. The association of enthesitis with disease activity and PRO measures vs no enthesitis was modeled using multivariable-adjusted linear or logistic regression. Results Of 2003 patients with PsA, 391 (19.5%) had enthesitis: 80 (20.5%) in upper sites only, 137 (35.0%) in lower sites only, and 174 (44.5%) in both. Regardless of location, disease activity and PROs were worse in patients with vs without enthesitis. In adjusted models, presence of enthesitis at any site was significantly associated with worse disease activity vs no enthesitis. Enthesitis in lower or both upper and lower sites was associated with higher pain and fatigue scores and greater work impairment vs no enthesitis. Conclusion Patients with clinical enthesitis had worse disease activity regardless of enthesitis location vs those without enthesitis, and patients with enthesitis in lower or both upper and lower sites had worse pain, fatigue, and work impairment.

Composite Measures for Clinical Trials in Psoriatic Arthritis: Testing Pain and Fatigue Modifications in a UK Multicenter Study

2021 ◽  
pp. jrheum.201674
Author(s):  
William Tillett ◽  
Oliver FitzGerald ◽  
Laura C. Coates ◽  
Jon Packham ◽  
Deepak R. Jadon ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Disease Activity Index ◽  
Disease Status ◽  
Patient Reported Outcome Measures ◽  
Multicenter Observational Study ◽  
Composite Measures ◽  
Patient Reported

Objective To test the addition of pain and fatigue to the Composite Psoriatic Arthritis Disease Activity (CPDAI) and the Group for Research and Assessment of Psoriasis and PsA (GRAPPA) Composite Exercise (GRACE) composite measures of psoriatic arthritis (PsA). Methods Clinical and patient-reported outcome measures were assessed in patients with PsA at 3 consecutive follow-up visits over 6 months in a UK multicenter observational study. A pain visual analog scale and Functional Assessment of Chronic Illness Therapy Fatigue scale were added as modifications to the CPDAI and GRACE composite measures. Original and modified versions were tested against the PsA Disease Activity Score (PASDAS) and the Disease Activity Index for PsA (DAPSA). Discrimination between disease states and responsiveness were tested with t-scores, standardized response means (SRMs), and effect sizes. Data were presented to members at the 2020 annual meeting who then voted on the GRAPPArecommended composite and treatment targets for clinical trials. Results One hundred forty-one patients were recruited with a mean PsA disease duration of 6.1 years (range 0–41 yrs). The SRMs for the GRACE and modified GRACE (mGRACE) were 0.67 and 0.64, respectively, and 0.54 and 0.46, respectively, for the CPDAI and modified CPDAI (mCPDAI). The t-scores for the GRACE and mGRACE were unchanged at 7.8 for both, and 6.8 and 7.0 for the CPDAI and mCPDAI, respectively. The PASDAS demonstrated the best responsiveness (SRM 0.84) and discrimination (t-scores 8.3). Most members (82%) agreed the composites should not be modified and 77% voted for the PASDAS as the GRAPPA-recommended composite for clinical trials, with 90% minimal disease activity (MDA) as the target. Conclusion Modifying the CPDAI and GRACE with the addition of pain and fatigue does not enhance responsiveness nor the measures’ ability to detect disease status in terms of requiring treatment escalation. GRAPPA members voted for the PASDAS as the composite measure in clinical trials and MDA as the target.

scholarly journals Efficacy and safety of a single switch from etanercept originator to etanercept biosimilar in a cohort of inflammatory arthritis

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Maria Chiara Ditto ◽  
Simone Parisi ◽  
Marta Priora ◽  
Silvia Sanna ◽  
Clara Lisa Peroni ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Ankylosing Spondylitis ◽  
Disease Activity ◽  
Inflammatory Arthritis ◽  
Health Assessment Questionnaire ◽  
Activity Index ◽  
Health Assessment ◽  
Disease Activity Index ◽  
Clinical State ◽  
Assessment Questionnaire

Abstract AntiTNF-α biosimilars are broadly available for the treatment of inflammatory arthritis. There are a lot of data concerning the maintenance of clinical efficacy after switching from originators to biosimilars; therefore, such a transition is increasingly encouraged both in the US and Europe. However, there are reports about flares and adverse events (AE) as a non-medical switch remains controversial due to ethical and clinical implications (efficacy, safety, tolerability). The aim of our work was to evaluate the disease activity trend after switching from etanercept originator (oETA-Enbrel) to its biosimilar (bETA-SP4/Benepali) in a cohort of patients in Turin, Piedmont, Italy. In this area, the switch to biosimilars is stalwartly encouraged. We switched 87 patients who were in a clinical state of stability from oETA to bETA: 48 patients were affected by Rheumatoid Arthritis (RA),26 by Psoriatic Arthritis (PsA) and 13 by Ankylosing Spondylitis (AS).We evaluated VAS-pain, Global-Health, CRP, number of swollen and tender joints, Disease Activity Score on 28 joints (DAS28) for RA, Disease Activity in Psoriatic Arthritis (DAPSA) for PsA, Health Assessment Questionnaire (HAQ) and Health Assessment Questionnaire for the spondyloarthropathies (HAQ-S),Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) for AS patients. 11/85 patients (12.6%) stopped treatment after switching to biosimilar etanercept. No difference was found between oETA and bETA in terms of efficacy. However, some arthritis flare and AE were reported. Our data regarding maintenance of efficacy and percentage of discontinuation were in line with the existing literature.

AB0800 CLINICAL ASSOCIATION BETWEEN URIC ACID/25-HYDROXYVITAMIN D SERUM LEVELS RATIO IN PATIENTS WITH PSORIATIC ARTHRITIS

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1699.1-1700
Author(s):  
F. Masini ◽  
K. Gjeloshi ◽  
E. Pinotti ◽  
F. Danzo ◽  
F. Guarino ◽  
...  
Keyword(s):  
Vitamin D ◽  
Uric Acid ◽  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Univariate Analysis ◽  
Disease Activity Index ◽  
Serum Levels ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D

Background:The association between hyperuricemia and psoriatic arthritis (PsA) is actually generally accepted. Previous studies have demonstrated that uric acid suppress 25(OH)D metabolism [1]. More evidence is required to demonstrate the immune modulatory effects in psoriasis, psoriatic arthritis and other autoimmune diseases. In particular, the potential association between 25-hydroxyvitamin D serum levels and PsA still remains unknown.Objectives:To assess a clinical association between uric acid/25(OH)D serum levels ratio related to PASI, BASDAI and DAPSA, if any, in patients with psoriatic arthritis.Methods:We retrospectively observed 61 patients with psoriatic arthritis referred to our outpatients clinic, independently from already being on therapy or naïve. All selected patients underwent only conventional non-biological therapy at baseline and none received vitamin D supplementation and either allopurinol or febuxostat previously. Blood samples were drawn from all participants for assessment of 25-hydroxyvitamin D and uric acid serum levels. Disease activity of psoriasis and psoriatic arthritis were assessed by the Psoriasis Area and Severity Index (PASI), the Disease Activity Index for Psoriatic Arthritis (DAPSA) and the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). We assessed the covariates of interest by the Wilcoxon non parametric test, through the SPSS 24 Software.Results:We observed 61 patients, mainly females (83.6%). At the univariate analysis, the uric acid/25(OH)D serum levels ratio revealed significantly associated with DAPSA and BASDAI indexes (p<0.001 and p<0.001, respectively), whilst no significant association emerged with the PASI index (p=0.462).Conclusion:Data in the literature about these associations in the context of psoriatic arthritis are really poor. As a consequence, our findings, though preliminary, suggest us to hypothesize a potential role of uric acid/25(OH)D serum levels ratio as potential inflammation marker in order to better assess the disease activity. However, future larger studies are needed to investigate more in depth this association.[1]Charoenngam N, Ponvilawan B, Ungprasert P. Vitamin D insufficiency and deficiency are associated with a higher level of serum uric acid: A systematic review and meta-analysis. Mod Rheumatol. 2019 Mar 4:1-6.Disclosure of Interests:None declared

The Association Between Disease Activity and Duration in Systemic Sclerosis

2010 ◽  
Vol 37 (11) ◽  
pp. 2299-2306 ◽  
Author(s):  
JENNIFER G. WALKER ◽  
RUSSELL J. STEELE ◽  
MIREILLE SCHNITZER ◽  
SUZANNE TAILLEFER ◽  
MURRAY BARON ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Disease Activity ◽  
Disease Duration ◽  
Activity Index ◽  
Disease Onset ◽  
Depression Scale ◽  
Disease Activity Index ◽  
Cross Sectional ◽  
Diffuse Disease ◽  
Patient Reported

Objective.The absence of a standardized disease activity index has been an important barrier in systemic sclerosis (SSc) research. We applied the newly derived Valentini Scleroderma Disease Activity Index (SDAI) among our cohort of patients with SSc to document changes in disease activity over time and to assess possible differences in activity between limited and diffuse disease.Methods.Cross-sectional study of a national cohort of patients enrolled in the Canadian Scleroderma Research Group Registry. Disease activity was measured using the SDAI. Depression scores were measured using the Centre for Epidemiologic Studies Depression Scale (CES-D).Results.A total of 326 out of 639 patients had complete datasets at the time of this analysis; 87% were female, of mean age 55.6 years, with mean disease duration 14.1 years. SDAI declined steeply in the first 5 years after disease onset and patients with diffuse disease had 42% higher SDAI scores than patients with limited disease with the same disease duration and depression scores (standardized relative risk 1.42, 95% CI 1.21, 1.65). Patients with higher CES-D scores had higher SDAI scores relative to patients with the same disease duration and disease subset (standardized RR 1.22, 95% CI 1.14, 1.31). Among the 10 components that make up the SDAI, only skin score (standardized OR 0.59, 95% CI 0.43, 0.82) and patient-reported change in skin (standardized OR 0.64, 95% CI 0.45, 0.92) decreased with increasing disease duration. High skin scores (standardized OR 32.2, 95% CI 15.8, 72.0) were more likely and scleredema (standardized OR 0.58, 95% CI 0.37, 0.92) was less likely to be present in patients with diffuse disease. High depression scores were associated with positive responses for patient-reported changes in skin and cardiopulmonary function.Conclusion.Disease activity declined with time and patients with diffuse disease had consistently higher SDAI scores. Depression was found to be associated with higher patient activity scores and strongly associated with patient self-response questions. The role of depression should be carefully considered in future applications of the SDAI, particularly as several components of the score rely upon patient recall.

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