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. 2013 Apr 17;2(1):e8. doi: 10.2196/ijmr.2463

Table 1.

Descriptive characteristics of the study population during baseline visit. Numbers show mean, SD, and range.

Characteristic Total
n (%) or
mean (SD, range)
Male
n (%) or
mean (SD, range)
Female
n (%) or
mean (SD, range)
n (%) 51 (100) 34 (67) 17 (33)
Age at onset in years,
mean (SD, range)
56.3 (9.2, 36-72) 55.7 (9.5, 36-71) 57.3 (8.5, 38-72)
Duration of disease (months), mean (SD, range) 31.7 (24.9, 3-125) 31.0 (25.6, 3-125) 32.9 (24.2, 9-104)
ALSFRS-R score,
mean (SD, range)
33.0 (8.1, 16-47) 32.5 (7.5, 19-47) 34.2 (9.3, 16-44)
Weight (kg),
mean (SD, range)
72.5 (14.3, 42-105) 77.9 (13.3, 57-105) 61.8 (9.7, 42-84)
BMI (kg/m2),
mean (SD, range)
23.6 (3.5, 17-32) 24.2 (3.5, 19-32) 22.4 (3.2, 17-29)
Vital capacity,
% mean (SD, range)
65.6 (25.4, 14-107) 60 (25.6, 14-107) 75.5 (22.6, 23-107)
Spinal onset, n (%) 36 (71) 26 (77) 10 (59)
Bulbar onset, n (%) 13 (26) 6 (18) 7 (41)
Axial onset, n (%) 2 (4) 2 (6) 0 (0)
NIV, n (%) 12 (24) 9 (27) 3 (18)