Primary Sjögren's Syndrome: Longitudinal real-world, observational data on health-related quality of life

Jessica Tarn*, Dennis William Lendrem, Peter McMeekin, Clare Lendrem, Ben Hargreaves, Wan-Fai Ng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Introduction
Primary Sjögren’s syndrome (pSS) is a chronic inflammatory condition, which presents with symptoms of dryness, pain, fatigue and often symptoms of anxiety and depression. Health related quality of life is significantly reduced in pSS and the direct and indirect health costs of pSS are substantial. This study aims to determine how symptom burden, disease activity and demographics associate with HRQoL longitudinally over a median of 24-month follow-up period in pSS.

Methods
Longitudinal EQ-5D-3L data from the Newcastle pSS cohort (n=377) were evaluated using a survival analysis strategy. Kaplan-Meier and Cox proportional hazards analysis were performed using baseline Newcastle Sjogren’s Stratification Tool (NSST) subgroup, EULAR Sjogren’s Syndrome Patient Reported Index (ESSPRI), EULAR Sjogren’s Syndrome Disease Activity Index (ESSDAI), disease duration, age, and sex as covariates including polypharmacy and comorbidity score, where data were available (n = 191).

Results
Of the 377 pSS participants analysed in this study 16% experienced a decline in HRQoL to a health state comparable to or worse than death. NSST subgroup and ESSPRI score had a significant relationship with time to ‘EQ-5D event’ whereas baseline ESSDAI, age, disease duration and sex did not.

Conclusion
In pSS symptom burden and to a great extent NSST subgroup, rather than systemic disease activity, has a significant relationship with HRQoL longitudinally. Improvements in symptom burden have the potential to produce significant impacts on long-term HRQoL in pSS.
Original languageEnglish
JournalJournal of Internal Medicine
Publication statusAccepted/In press - 3 Jan 2022

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