Figure 4.
Kaplan–Meier analyses stratified by different groups: considering the conversion to neuromyelitis optica (NMO). (A) Kaplan–Meier analysis revealed that patients in three groups would experience different time of NMO conversion after the first attack (p < 0.0001); (B) Kaplan–Meier analysis revealed that patients in MOSD-ON−TM− group would experience earlier NMO event after the first attack and was significantly different neuromyelitis optica spectrum disorder (NMOSD)-TM+ group (p = 0.012); (C) Kaplan–Meier analysis revealed no significant differences in time to the NMO event between NMOSD-ON+ and MOSD-ON−TM− group (p = 0.081); and (D) Kaplan–Meier analysis revealed patients in NMOSD-ON+ group would experienced earlier NMO event after the first attack and was significantly different NMOSD-TM+ group (p < 0.0001).