Research Article

Gender and Ethnicity Based Differences in Clinical and Laboratory Features of Myasthenia Gravis

Table 2

Ethnicity and laboratory features in myasthenia gravis.

HispanicAfrican AmericanCaucasianAsianSig.

All myasthenia gravis
Anti-AChR antibodies positive (%)
 Blocking10 (52.6%)6 (37.5%)2 (33.3%)0 (0.0%)
 Binding13 (68.4%)9 (56.3%)3 (50.0%)0 (0.0%)
 Modulating7 (36.8%)5 (31.3%)3 (50.0%)0 (0.0%)
Anti-MUSK antibodies positive (%)2 (10.5%)0 (0.0%)0 (0.0%)3 (100%)

Generalized myasthenia gravis
Anti-AChR antibodies positive (%)
 Blocking7 (46.67%)5 (38.5%)2 (40.0%)0 (0.0%)
 Binding9 (60.0%)7 (53.9%)3 (60.0%)0 (0.0%)
 Modulating4 (26.7%)4 (30.8%)2 (40.0%)0 (0.0%)
MUSK antibodies positive (%)2 (13.3%)0 (0.0%)0 (0.0%)3 (100%)

Ocular myasthenia gravis
Anti-AChR antibodies positive (%)
 Blocking3 (75.0%)1 (33.3%)1 (100%)n/a
 Binding4 (100%)2 (66.7%)0 (0.0%)n/a
 Modulating3 (75.0%)1 (33.3%)1 (100%)n/a
Anti-MUSK antibodies positive (%)0 (0.0%)0 (0.0%)0 (0.0%)n/an/a