Data OR 95% CI p
Gender male 1.972 0.569-6.836 0.284
female 1
Age(years) ≦49 0.199 0.046-0.863 0.031
>49 1
Myasthenia gravis positive 12.601 2.406-65.995 0.003
negative 1
WHO type A+AB+B1 0.407 0.115-1.437 0.163
B2+B3 1
Masaoka-Koga stage I 1.728 0.414-7.211 0.453
IIA-IV 1
Tumor size ≦5cm 0.594 0.156-2.263 0.446
>5cm 1
Ectopic thymus yes 4.263 0.706-25.751 0.114
no 1