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Comparison between the de novo group with the non-de novo group. (A) The median age at onset in the de novo group was significantly lower than that in the non-de novo group (p = 0.021). (B) The CMTNS showed no significant differences between the two groups (p = 0.692). (C) The CMTNS-G between the two groups showed no significant differences (p = 0371). CMTNS, Charcot–Marie–Tooth disease neuropathy scores; CMTNS-G, Charcot–Marie–Tooth disease neuropathy scores gradient.
