Frequency of myasthenic crisis in relation to thymectomy in generalized myasthenia gravis: A 17-year experience

BMC Neurology

Table 1 Characteristics of thymectomized patients just before thymectomy and non-thymectomized patients at the first year of the diagnosis

	Thymectomized patients (n = 110)	Non-thymectomized patients (n = 109)	P value
Age at diagnosis (years)	29.2 ± 13.7	33.0 ± 15.9	0.059
Gender (male/female)	41/69	53/56	0.089
Osserman Score* = I	0	0
Osserman Score = IIa	46	48
Osserman Score = IIb	37	50
Osserman Score = III	25	11
Osserman Score = IV	2	0
Follow up period (years)	6.4 ± 4.3	7.9 ± 5.6	0.134

* Mann-Whitney U test showed no significant difference between two groups (Z = |1.421| & P = 0.155)

ISSN: 1471-2377