Registry of the Spanish network for systemic sclerosis: Survival, prognostic factors, and causes of death

C. P. Simeón-Aznar, V. Fonollosa-Plá, Carles Tolosa-Vilella, G. Espinosa-Garriga, M. Campillo-Grau, M. Ramos-Casals, F. J. García-Hernández, M. J. Castillo-Palma, J. Sánchez-Román, J. L. Callejas-Rubio, N. Ortego-Centeno, M. V. Egurbide-Arberas, L. Trapiellla-Martínez, L. Caminal-Montero, L. Sáez-Comet, J. Velilla-Marco, M. T. Camps-García, E. De Ramón-Garrido, E. M. Esteban-Marcos, L. Pallarés-FerreresN. Navarrete-Navarrete, J. A. Vargas-Hitos, R. Gómez De La Torre, G. Salvador-Cervello, J. J. Rios-Blanco, M. Vilardell-Tarrés

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Abstract

Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved. Systemic sclerosis (SSc) is a rare, multisystem disease showing a large individual variability in disease progression and prognosis. In the present study, we assess survival, causes of death, and risk factors of mortality in a large series of Spanish SSc patients. Consecutive SSc patients fulfilling criteria of the classification by LeRoy were recruited in the survey. Kaplan-Meier and Cox proportionalhazards models were used to analyze survival and to identify predictors of mortality. Among 879 consecutive patients, 138 (15.7%) deaths were registered. Seventy-six out of 138 (55%) deceased patients were due to causes attributed to SSc, and pulmonary hypertension (PH) was the leading cause in 23 (16.6%) patients. Survival rates were 96%, 93%, 83%, and 73% at 5, 10, 20, and 30 years after the first symptom, respectively. Survival rates for diffuse cutaneous SSc (dcSSc) and limited cutaneous SSc were 91%, 86%, 64%, and 39%; and 97%, 95%, 85%, and 81% at 5, 10, 20, and 30 years, respectively (log-rank: 67.63, P<0.0001). The dcSSc subset, male sex, age at disease onset older than 65 years, digital ulcers, interstitial lung disease (ILD), PH, heart involvement, scleroderma renal crisis (SRC), presence of antitopoisomerase I and absence of anticentromere antibodies, and active capillaroscopic pattern showed reduced survival rate. In a multivariate analysis, older age at disease onset, dcSSc, ILD, PH, and SRC were independent risk factors for mortality. In the present study involving a large cohort of SSc patients, a high prevalence of disease-related causes of death was demonstrated. Older age at disease onset, dcSSc, ILD, PH, and SRC were identified as independent prognostic factors.
Original languageEnglish
Article numbere1728
JournalMedicine (United States)
Volume94
Issue number43
DOIs
Publication statusPublished - 1 Jan 2015

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