Demographic features of patients with neuromyelitis optica spectrum disorder and healthy controls.

<p>Abbreviations: NMOSD, neuromyelitis optica spectrum disorder; N, number; y, years; F, female; M, male; EDSS, expanded disability status scale; ARR, annualized relapse rate.</p>a<p>Patients meeting the revised diagnostic criteria for NMO <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0107274#pone.0107274-Wingerchuk2" target="_blank">[16]</a>.</p>b<p>Expressed as mean ± standard deviation.</p><p>Demographic features of patients with neuromyelitis optica spectrum disorder and healthy controls.