Clinical and serological study of myasthenia gravis in HuBei Province, China

BACKGROUND: Ocular and childhood myasthenia gravis (MG) cases seem relatively more common in Oriental than in Caucasian populations, but there have been no comprehensive serological studies on patients from mainland China. METHODS: 391 unselected patients with MG attending Tongji Hospital in WuHan (the largest hospital in the province of HuBei, China) were studied during a 15-month period; most had already received treatment for their condition. RESULTS: The male to female ratio was 0.8. 50% of the patients were children (