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15 April 1993 | Volume 118 Issue 8 | Pages 602-609
Objective: To characterize the course of early scleroderma and to delineate prognostic factors present within 1 year of disease onset that might identify patients at high risk.
Design: Inception cohort study.
Setting: Ten university-based rheumatology clinics participating in the Cooperative Systematic Studies of Rheumatic Diseases Program.
Patients: Forty-eight patients who had had scleroderma for less than 1 year.
Measurements: Fifteen patients with early scleroderma who died were compared with those still living during the initial study period (1982 to 1992). Kaplan-Meier survival estimation and Cox proportional-hazards analysis were used to analyze baseline variables for their ability to predict survival duration.
Results: Eight of 15 deaths were due to cardiac or pulmonary system failure. The estimated 5-year survival rate was 68%. Baseline factors that were the most predictive of a poor outcome included the presence of abnormal cardiopulmonary signs and abnormal urine sediment (pyuria, hematuria).
Conclusion: Evidence of early cardiopulmonary disease, renal disease, inflammation, or immune activation may identify a subset of patients with scleroderma who will experience rapidly progressive disease and early death.
Author and Article Information
From the Cooperative Systematic Studies of the Rheumatic Diseases Program, Coordinating Center, The University of Utah, Salt Lake City, Utah.
ARTICLE
Early Undifferentiated Connective Tissue Disease: III. Outcome and Prognostic Indicators in Early Scleroderma (Systemic Sclerosis)
Requests for Reprints: Ken J. Bulpitt, MD, UCLA Division of Rheumatology, 1000 Veteran Avenue, 32-47, Los Angeles, CA 90024-1670.
Grant Support: In part by grant AR3-6834-05 from the National Institute of Health. The Cooperative Systematic Studies of Rheumatic Diseases Program study of early undifferentiated connective tissue disease was supported through grant 1-AM6-2228 from the National Institutes of Health.
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