Increasing age at disability milestones among MS patients in the MSBase Registry

Ilya Kister*, Eric Chamot, Gary Cutter, Tamar E. Bacon, Vilija G. Jokubaitis, Stella E Hughes, Orla M Gray, Maria Trojano, Guillermo Izquierdo, Francois Grand'Maison, Pierre Duquette, Alessandra Lugaresi, Pierre Grammond, Cavit Boz, Raymond Hupperts, Thor Petersen, Giorgio Giuliani, Celia Oreja-Guevara, Gerardo Iuliano, Jeannette Lechner-ScottRoberto Bergamaschi, Maria Edite Rio, Freek Verheul, Marcela Fiol, Vincent Van Pesch, Mark Slee, Helmut Butzkueven, Joseph Herbert

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

To analyze time-trends in age at disability milestones among MS patients who were enrolled into the MSBase International Registry during 1996-2010 period.We used linear regression to describe the relationship between mean age at major EDSS benchmarks and calendar time. We then assessed time-trend in age at initial EDSS rating with a three level linear growth model specifying that patients were nested within each of 20 participating countries. The model estimated the average of time-trends in mean age at initial clinical assessment within each country while controlling for patients' EDSS and sex in each country. Analyses were repeated in subsamples of patients diagnosed according to Poser or McDonald criteria.The MSBase Registry contained data on 11,108 MS patients enrolled between 1996 and 2010 who fulfilled our inclusion criteria. During the 1996-2010 period, enrollment age for patients with EDSS 4/4.5 increased by 7.9 years, from 43 to 51 years (p
Original languageEnglish
Pages (from-to)94-99
JournalJournal of the Neurological Sciences
Volume318
Issue number1-2
DOIs
Publication statusPublished - 15 Jul 2012

Keywords

  • Multiple sclerosis
  • Epidemiology
  • Population-based registry

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