ArticleRMD open2026
Impact of socioeconomic deprivation on risk and disease activity of Sjögren's disease.
Article in RMD open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundWe aimed to assess the impact of socioeconomic status (SES) on risk of Sjögren's disease (SjD) compared with non-Sjögren's Sicca and population controls, and on the clinical features of SjD.
methodsA single-centre UK cohort provided participants with SjD (European Alliance of Associations for Rheumatology/American College of Rheumatology (EULAR/ACR) 2016, n=256) and non-Sjögren's Sicca (anti-Sjögren's syndrome type A (SSA)/Ro negative, n=175). Health Survey for England 2019 provided local population controls (n=972). English Indices of Multiple Deprivation (IMD) 2019 quintiles at recruitment and highest educational attainment defined SES.Adjusted logistic regression models evaluated associations between SES and diagnosis. Linear models assessed the impact of IMD on disease variables. Population controls were matched with age, sex and ethnicity to compare SES distributions.
resultsAcross IMD and educational attainment, participants with SjD had lower SES status compared to Sicca (p=0.008 and p=0.018). Odds of SjD (vs Sicca) were highest in most deprived IMD quintile 1 and reduced by 74% in quintile 2 (OR 0.26 (0.12, 0.58), p<0.001).Immunoglobulin G and A levels were inversely associated with IMD. In SjD, each unit increase in IMD reduced IgG by 6.03% (-9.84%, -2.05%; p=0.003) and IgA by 6.46% (-10.87%, -1.60%; p=0.010).When compared with population controls, IMD was not a risk factor for SjD (p=0.257) whereas Sicca was associated with lower deprivation (p=0.003). Those with a degree level qualification had the highest odds of diagnosis (SjD or Sicca).
conclusionsLow SES is associated with increased risk of SjD compared to Sicca and with higher immunoglobulin levels. The Sicca cohort may be less deprived than the general population. The role of environmental factors in modulating salivary gland pathology requires further exploration.
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