Epidemiological evidence for a hereditary contribution to myasthenia gravis: a retrospective cohort study of patients from North America.

ABSTRACT:

Objectives

To approximate the rate of familial myasthenia gravis and the coexistence of other autoimmune disorders in the patients and their families.

Design

Retrospective cohort study.

Setting

Clinics across North America.

Participants

The study included 1032 patients diagnosed with acetylcholine receptor antibody (AChR)-positive myasthenia gravis.

Methods

Phenotype information of 1032 patients diagnosed with AChR-positive myasthenia gravis was obtained from clinics at 14 centres across North America between January 2010 and January 2011. A critical review of the epidemiological literature on the familial rate of myasthenia gravis was also performed.

Results

Among 1032 patients, 58 (5.6%) reported a family history of myasthenia gravis. A history

SUBMITTER: Green JD 

PROVIDER: S-EPMC7511637 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature