Publications by authors named "Ying-ying Leung"

Objective: The aim of this analysis was to evaluate the relationship between the criteria met of the Minimal Disease Activity (MDA) score for psoriatic arthritis (PsA) and patient-perceived disease status.

Methods: We analysed data from the ReFlaP study (NCT03119805), a cross-sectional international study of adult patients with PsA. Patients self-reported if they felt their PsA was in remission (REM), low disease activity (LDA) or neither.

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Article Synopsis
  • The study aimed to determine effective cutoff scores for the Psoriatic Arthritis Impact of Disease questionnaire (PsAID12) based on disease activity measures in patients with PsA.
  • Using data from the ReFlaP study, researchers analyzed scores to define disease states such as remission and varying impact levels, employing statistical methods to establish these cutoffs.
  • Results indicated that the PsAID12 score had high diagnostic performance against established benchmarks, but further validation and expert consensus are needed to confirm the proposed cutoffs for clinical use.
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  • Psoriasis is a chronic inflammatory skin disease that requires varied management approaches, which the study aimed to standardize through new guidelines tailored for dermatology practice in Singapore.
  • A specialized workgroup conducted a comprehensive literature review on psoriasis treatments from 2013 to 2023, refining clinical questions to create practical guidelines covering assessment and management strategies for different severity levels of psoriasis.
  • The resulting guidelines suggest various therapies, including both systemic and topical treatments, while addressing specific concerns for special populations and providing recommendations for managing related conditions like psoriatic arthritis.
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Pain catastrophizing is an exaggerated focus on pain sensations. It may be an independent factor influencing pain and functional outcomes of knee arthroplasty. We aimed to evaluate the association between pre-operative pain catastrophizing with pain and function outcomes up to one year after knee arthroplasty.

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The Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA)-Outcome Measures in Rheumatology (OMERACT) psoriatic arthritis (PsA) working group provided updates at the GRAPPA 2023 annual meeting on its work to evaluate composite outcome measures for PsA. An ongoing systematic literature review is in progress to evaluate psychometric measurement properties using the OMERACT filter 2.2 for a list of candidate composite outcome measures, which include minimal disease activity (MDA), Disease Activity for Psoriatic Arthritis (DAPSA), American College of Rheumatology (ACR) response criteria, Psoriatic Arthritis Disease Activity Score (PASDAS), Composite Psoriatic Disease Activity Index (CPDAI), 3 visual analog scale (3VAS), and 4VAS.

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  • This study examined the costs associated with lost productivity in patients diagnosed with inflammatory arthritis (IA) and osteoarthritis (OA), focusing on a specific group from diagnosis to one year later.
  • Results indicated that patients with IA were generally younger and experienced a greater decrease in presenteeism, meaning they were more effective at work post-diagnosis compared to those with OA.
  • The findings suggest that while both types of arthritis lead to significant productivity loss, the treatment for IA appears to enhance work productivity more effectively than treatment for OA.
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Objectives: The objective of this study is to develop classification criteria for overall hand osteoarthritis (OA), interphalangeal OA and thumb base OA based on self-reported data and radiographic features.

Methods: The classification criteria sets were developed in three phases. In phase 1, we identified criteria that discriminated hand OA from controls.

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In this commentary, we review clinical data which helps inform individualized benefit-risk assessment for tofacitinib in patients with psoriatic arthritis (PsA) and ankylosing spondylitis (AS). ORAL Surveillance, a safety trial of patients ≥ 50 years of age with rheumatoid arthritis (RA) and cardiovascular risk factors, found increased rates of safety outcomes (including major adverse cardiovascular events [MACE], malignancies excluding non-melanoma skin cancer, and venous thromboembolism) with tofacitinib versus tumor necrosis factor inhibitors (TNFi). Post hoc analyses of ORAL Surveillance have identified subpopulations with different relative risk versus TNFi; higher risk with tofacitinib was confined to patients ≥ 65 years of age and/or long-time current/past smokers, and specifically for MACE, patients with a history of atherosclerotic cardiovascular disease (ASCVD).

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Objective: To develop a set of detailed definitions for foundational domains commonly used in OMERACT (Outcome Measures in Rheumatology) core domain sets.

Methods: We identified candidate domain definitions from prior OMERACT publications and websites and publications of major organizations involved in outcomes research for six domains commonly used in OMERACT Core Domain Sets: pain intensity, pain interference, physical function, fatigue, patient global assessment, and health-related quality of life. We conducted a two-round survey of OMERACT working groups, patient research partners, and then the OMERACT Technical Advisory Group to establish their preferred domain definitions.

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Purpose: We aimed to (1) establish linguistic and ethnic equivalence (i.e. lack of bias) for the items in the English and Chinese versions of the Singapore Health and Well Being (SHAWS) Physical Functioning (PF), Positive Mindset (PM) and Social Relationship (SR) item banks (IBs); and (2) evaluate the preliminary efficiency of these IBs using Computer Adaptive Testing (CAT) simulations.

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Aim: Social cognitive theory (SCT) has been successfully employed to improve symptom appraisal and help-seeking among patients with various conditions but is yet to be applied in the context of autoimmune rheumatic diseases (ARDs). This study aimed to explore the applicability of SCT in and possible approaches to improving symptom appraisal and help-seeking of patients with ARDs, one of the key barriers to earlier diagnosis.

Methods: Semi-structured interviews were conducted with 33 ARD patients with a prolonged pre-diagnosis interval (>3 months).

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Objectives: We aimed to evaluate whether obese patients with psoriatic arthritis (PsA) were less likely to be in remission/low disease activity (LDA).

Methods: We used data from the ReFlaP, an international multi-centre cohort study (NCT03119805), which recruited consecutive adults with definite PsA (disease duration ≥ 2 years) from 14 countries. Demographics, clinical data, comorbidities, and patient-reported outcomes were collected.

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Objectives: We aimed to evaluate the association between the adipokines: Leptin, Adiponectin, Resistin, and high sensitive-C-reactive protein (hs-CRP) with clinical, radiographical and magnetic resonance imaging (MRI) assessment of knee osteoarthritis (OA) severity.

Design: We performed a cross-sectional study in participants with earlier knee OA. Demographics, clinical (WOMAC), radiographical and MRI (BLOKS scoring) severity of knee OA were assessed.

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Objective: Long diagnostic delay remains an unsolved problem in many autoimmune rheumatic diseases (ARDs). One of the major contributing factors is poor symptom appraisal and the resulting delays in help-seeking by patients themselves. We therefore aimed to understand the symptom appraisal and help-seeking experience among patients with ARDs in a multiethnic urban Asian population and to explore its influencing factors.

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Introduction: This review aims to provide evidence-based recommendations for an enhanced primary series (third dose) coronavirus disease 2019 (COVID-19) vaccination in people with rheumatic diseases (PRDs) in the local and regional context.

Methods: Literature reviews were performed regarding the necessity, efficacy, safety and strategies for enhanced primary series COVID-19 vaccination in PRDs. Recommendations were developed based on evidence according to the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology.

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Objective: To determine prevalence and factors associated with flares post Coronavirus disease 2019 (COVID-19) mRNA vaccination in patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA) and spondyloarthritis (SpA).

Methods: A retrospective multi-centre study was conducted (January 2021 to February 2022). Data were collected during index visit, defined as first post-vaccine visit in which the patient had a physician-defined flare, or if at least 3 months had elapsed since first vaccine dose, whichever came first.

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The Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA)-Outcome Measures in Rheumatology (OMERACT) Psoriatic Arthritis (PsA) working group-comprising rheumatologists, dermatologists, methodologists, and patient research partners-provided updates at the GRAPPA 2022 annual meeting on its work to evaluate composite outcome measures for PsA. Ten composite outcome measures were considered. Initial steps were to define the population, the purpose of use, and the proposed pros and cons of the 10 candidate composite instruments for PsA.

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Article Synopsis
  • Patients with inflammatory arthritis (IA) show more significant improvements in work productivity (WP) within six months after diagnosis compared to those with osteoarthritis (OA).
  • The study measured changes in work productivity loss (WPL) and work disability (WD), finding a notable decrease in WPL for both groups, but an increase in WD for OA patients.
  • Health status metrics like physical functioning and vitality at the time of diagnosis were found to be associated with work productivity outcomes six months later.
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Objectives: The early gastrointestinal (GI) manifestation of systemic sclerosis (SSc) suggests a possible GI microbiota engagement in the pathophysiology and/or progression of SSc. Previous studies have revealed dysbiosis among Caucasian SSc patients. This study extends these findings to Asian SSc patients.

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Background: Tofacitinib is a Janus kinase inhibitor for the treatment of psoriatic arthritis (PsA) and has been investigated for psoriasis (PsO).

Objectives: This analysis examined baseline cardiovascular (CV) disease risk and its association with the occurrence of major adverse cardiovascular events (MACE) and malignancies in tofacitinib-treated patients with PsA and PsO.

Design: Included three phase III/long-term extension (LTE) PsA trials and seven phase II/phase III/LTE PsO trials of patients receiving ⩾ 1 dose of tofacitinib.

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Objectives: Interval scale reduce measurement bias compared to ordinal scale. We aimed to evaluate the fit of Western Ontario and McMaster Universities Osteoarthritis Index WOMAC) to the Rasch model and derive the transformation table for interval scale measurement.

Methods: Data from osteoarthritis patients listed for knee arthroplasty (KA) pre-operatively, and at 6- and 12- months post-operative was used.

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Objectives: To explore patient-defined flares in psoriatic arthritis (PsA), compared to an increase in disease activity in psoriatic arthritis (DAPSA) and to analyze the validity of a patient-reported flare question.

Methods: ReFlap (NCT03119805) was a longitudinal study in 14 countries of consecutive patients with definite PsA. Patients were seen twice in the context of usual care, 4.

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Background: Studies of flares of autoimmune inflammatory rheumatic diseases (AIIRD) after COVID-19 mRNA vaccination are limited by small sample size, short follow up or at risk of selection bias.

Methods: A national retrospective cohort study of consecutive AIIRD patients ≥12 years old, across 8 hospitals who received at least one dose of a COVID-19 mRNA vaccine. Patients were included from the date of 1st vaccine dose and censored at the time of flare or on the date of the clinic visit at least 3 months from cohort entry, whichever came first.

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