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Table 1 Physical characteristics of the 30 study participants

From: Correlates of functional ankle instability in children and adolescents with Charcot-Marie-Tooth disease

Physical Characteristics All Males Females
(N = 30) (N = 14) (N = 16)
Age (years) 11 (3), 7–18 11 (3), 7–18 11 (3), 7–16
Height (cm) 141 (17), 115–176 143 (19), 122–176 139 (16), 115–162
Weight (kg) 38 (16), 22–91 41 (19), 13–30 36 (12), 22–57
Body Mass Index (kg/m2) 19 (4), 13–30 19 (4), 13–30 18 (3), 15–23
CMT sub-type, n (%)    
CMT1A 22 (74) 8 (57) 14 (88)
CMTX 5 (17) 4 (29) 1 (6)
Dejerine-Sottas Syndrome 1 (3) 0 1 (6)
Spinal CMT 1 (3) 1 (7) 0
CMT2 1 (3) 1 (7) 0
Foot Posture Index Score right −1 (5), −11 to +8 0.1 (5), −8 to +8 −2 (5), −11 to +6
Foot Posture Index Score left −0.3 (5), −10 to +11 0.8 (6), −8 to +11 −1 (5), −10 to +5
Ankle range of motion right (0) 16 (6), 2–29 17 (6), 8–28 16 (6), 2–29
Ankle range of motion left (0) 17 (6), 2–29 17 (6), 5–25 16 (7),–3–23
Ankle instability right (CAIT Score) 18 (7), 5–30 21 (7), 5–30 15 (5), 5–25*
Ankle instability left (CAIT Score) 18 (7), 5–28 21 (7), 5–28 16 (5), 5–25*
Balance–feet side by side (seconds) 28 (7), 2–30 30 (0), 30–30 26 (9), 2–30
Balance–big toe next to heel (seconds) 25 (9),1–30 28 (6), 7–30 23 (11), 1–30
Balance–heel in front of toes (seconds) 22 (11), 1–30 21 (10), 2–30 22 (11), 1–30
Stair ascent (seconds) 14 (3), 8–21 14 (3), 9–21 13 (3), 8–17
Sit to stand (seconds) 1 (0.4), 0.4–2 1 (0.3), 0.4–2 1 (0.4), 1–2
Self–selected walking speed (seconds) 9 (3), 6–25 9 (2), 7–13 9 (4), 6–25
Fastest walking speed (seconds) 6 (3), 4–24 5 (0.6), 4–6 7 (5), 4–24
Falls (number/past week) 7 (10), 0–50 9 (13), 0–50 5 (5), 0–16
  1. Values are mean (standard deviation), range except for gender, which is expressed as a ratio and CMT sub-type, which is expressed as a percentage
  2. Abbreviations: CMT1A Charcot-Marie-Tooth disease Type 1A, CMTX X-Linked Charcot-Marie-Tooth disease, CMT2 Charcot-Marie-Tooth disease Type 2, CAIT Cumberland Ankle Instability Tool
  3. *Significant gender difference (P < .05)