Clinical and serologic factors associated with lupus pleuritis

Shikha Mittoo, Allan C. Gelber, Carol A. Hitchon, Earl D. Silverman, Janet E. Pope, Paul R. Fortin, Christian Pineau, C. Douglas Smith, Hector Arbillaga, Dafna D. Gladman, Murray B. Urowitz, Michel Zummer, Ann E. Clarke, Sasha Bernatsky, Marie Hudson, Lori B. Tucker, Ross E. Petty, Glinda S. Cooper, Lori Albert, Gaëlle ChedévilleSarah Campillo, Karen Duffy, Rosie Scuccimarri, Murray Baron, Laeora Berkson, Suzanne Ramsey, Adam Huber, Christine A. Peschken

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Objective. Pleuritis is a common manifestation and independent predictor of mortality in systemic lupus erythematosus (SLE). We examined the prevalence of pleuritis and factors associated with pleuritis in a multicenter Canadian SLE cohort. Methods. We studied consecutive adults satisfying the American College of Rheumatology (ACR) classification criteria for SLE who had a completed Systemic Lupus International Collaborating Clinics/ACR Damage Index (SDI) score, at least 1 evaluable extractable nuclear antigen assay, and either a SLE Disease Activity Index (SLEDAI) or a SLE Activity Measure score. Pleuritis was defined as having pleuritis by satisfying the ACR criteria or the SLEDAI. Factors related to pleuritis were examined using univariate and multivariate logistic regression. Results. In our cohort of 876 patients, 91% were women, 65% Caucasian, mean age (±SD) was 46.8 ± 13.5 years, and disease duration at study entry was 12.1 ± 9.9 years; the prevalence of pleuritis was 34% (n = 296). Notably, greater disease duration (p = 0.002), higher SDI score (p ≤ 0.0001), age at SLE diagnosis (p = 0.009), and anti-Sm (p = 0.002) and anti-RNP (p = 0.002) seropositivity were significantly associated with pleuritis. In multivariate analysis with adjustment for disease duration, age at diagnosis, and SDI score, concomitant seropositivity for RNP and Sm were related to a nearly 2-fold greater prevalence of pleuritis (OR 1.98, 95% CI 1.31-.82). Conclusion. Pleuritis occurred in one-third of this Canadian cohort. Concomitant Sm and RNP seropositivity, greater cumulative damage, longer disease duration, and younger age at SLE disease onset were related to a higher rate of SLE pleural disease. The Journal of Rheumatology

Original languageEnglish (US)
Pages (from-to)747-753
Number of pages7
JournalJournal of Rheumatology
Issue number4
StatePublished - Apr 1 2010


  • Antibodies
  • Pulmonary disease
  • Systemic lupus erythematosus

ASJC Scopus subject areas

  • Rheumatology
  • Immunology and Allergy
  • Immunology


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