Table 2

CMTNS for common mutations

CMT subtype (mutation)Mean CMTNS (n)SDMean CMTNS adjusted for age and genderPrevious reports
CMT1A (PMP22 dup)13.7 (324)6.513.613.2–14.6 (Shy et al;4 Pareyson et al5)
CMT1X (GJB1)13 (53)6.81511–16, 2nd–3rd decades (Shy et al;7 Siskind et al30)
CMT2A (MFN2)14.3 (42)8.712.621 (Feely et al8)
CMT1B (MPZ)13.7 (42)7.713.4
HNPP (PMP22)4.5 (12)2.1