Excess Mortality in Patients with Multiple Sclerosis Starts at 20 Years from Clinical Onset: Data from a Large-Scale French Observational Study - Département Méthodes quantitatives en santé publique Accéder directement au contenu
Article Dans Une Revue PLoS ONE Année : 2015

Excess Mortality in Patients with Multiple Sclerosis Starts at 20 Years from Clinical Onset: Data from a Large-Scale French Observational Study

Bruno Brochet
Christine Lebrun-Frenay

Résumé

Background :Recent studies in multiple sclerosis (MS) showed longer survival times from clinical onset than older hospital-based series. However estimated median time ranges widely, from 24 to 45 years, which makes huge difference for patients as this neurological disease mainly starts around age 20 to 40. Precise and up-to-date reference data about mortality in MS are crucial for patients and neurologists, but unavailable yet in France. Objectives :Estimate survival in MS patients and compare mortality with that of the French general population. Methods :We conducted a multicenter observational study involving clinical longitudinal data from 30,413 eligible patients, linked to the national deaths register. Inclusion criteria were definite MS diagnosis and clinical onset prior to January, 1st 2009 in order to get a minimum of 1-year disease duration. Results :After removing between-center duplicates and applying inclusion criteria, the final population comprised 27,603 MS patients (F/M sex ratio 2.5, mean age at onset 33.0 years, 85.5% relapsing onset). During the follow-up period (mean 15.2 +/-10.3 years), 1569 deaths (5.7%) were identified; half related to MS. Death rates were significantly higher in men, patients with later clinical onset, and in progressive MS. Overall excess mortality compared with the general population was moderate (Standardized Mortality Ratio 1.48, 95% confidence interval [1.41-1.55]), but increased considerably after 20 years of disease (2.20 [2.10-2.31]). Conclusions :This study revealed a moderate decrease in life expectancy in MS patients, and showed that the risk of dying is strongly correlated to disease duration and disability, highlighting the need for early actions that can slow disability progression.
Fichier principal
Vignette du fichier
fetchObject.pdf (305.42 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01201656 , version 1 (17-09-2015)

Identifiants

Citer

Emmanuelle Leray, Sandra Vukusic, Marc Debouverie, Michel Clanet, Bruno Brochet, et al.. Excess Mortality in Patients with Multiple Sclerosis Starts at 20 Years from Clinical Onset: Data from a Large-Scale French Observational Study. PLoS ONE, 2015, 10 (7), pp.1-12. ⟨10.1371/journal.pone.0132033⟩. ⟨hal-01201656⟩
485 Consultations
338 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More