Mortality in myasthenia gravis: A nationwide population-based follow-up study in Denmark.

Introduction: In previous studies of myasthenia gravis (MG), increased mortality has been reported. The aim of this study was to estimate mortality in patients with acetylcholine receptor antibody-positive (AChR-Ab-seropositive) MG in a nationwide population-based, long-term follow-up study.

Methods: All AChR-Ab-seropositive MG patients, diagnosed between 1985 and 2005, were identified.