Fig. 2.

Kaplan–Meier curves of the cumulative generalization rate from ocular symptom onset in different patient groups. a Patients with juvenile-onset (< 18 years) and adult-onset OMG (early-onset and late-onset OMG; ≥ 18 years). b Patients with normal and abnormal RNS findings. c Patients with testing seronegative and seropositive for AChR-Ab. d Patients with and without thymoma. Early-onset (18–49 years) and late-onset (≥ 50 years), AChR-Ab Acetylcholine receptor antibody, RNS repetitive nerve stimulation