Immortal time bias in the study of effectiveness of interferon-beta in multiple sclerosis

Ann Neurol. 2008 Jul;64(1):109-10; author reply 110. doi: 10.1002/ana.21352.
No abstract available

Publication types

  • Comment
  • Letter

MeSH terms

  • Clinical Trials as Topic / standards
  • Cohort Studies
  • Data Interpretation, Statistical
  • Disease Progression
  • Follow-Up Studies
  • Humans
  • Interferon-beta / administration & dosage*
  • Interferon-beta / adverse effects
  • Multiple Sclerosis / drug therapy*
  • Multiple Sclerosis / immunology
  • Multiple Sclerosis / mortality
  • Patient Selection
  • Selection Bias
  • Time Factors
  • Treatment Outcome

Substances

  • Interferon-beta