Table 1.

Clinical symptoms of CMT1C G112S

Clinical symptoms	Number of patients with CMT1C (%) (n = 10)
1. a
Only 1 patient wore a foot orthotic.
Childhood onset of presentation	8 (80%) (in the other 2 patients, age of onset was 30 and 60 years, respectively)
Walked on time (≤18 months)	10 (100%)
Ethnicity	French, German, Welsh, Russian, Polish, Slavic
First symptom
Slowest runner	3 (30%)
Toe walker	4 (40%)
Foot deformity	3 (30%)
Motor symptoms
Lower limbs (trip, catch toes, shoe inserts, slap feet, ankle–foot orthotica)	9 (90%)
Upper limbs (difficulty with buttons)	1 (10%)
Foot surgery	3 (30%)
Cramps and pain	10 (100%)
Sensory symptoms:
Lower limbs (reduction or loss of sensation)	6 (60%)
CMTNS	7.5 of 36 (range 2–11)