Fig. 3.

Correlations of four clinical subtypes and A onset age and B the presence of cornea Kayser–Fleischer (KF) ring. A The age of onset was older in the M group than that in the H (P = 0.039) and N (P = 0.015) groups. The onset age was similar between the H and N groups (P > 0.05). The presymptomatic group displayed younger onset age than the H, N and M groups (P = 0.000). B The presence of KF rings was not significantly different among the three groups with different clinical presentations (P > 0.05). H hepatic subtype, N neurological subtype, M mixed subtype, Pre presymptomatic subtype