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. 2023 Oct 19;12(6):2161–2175. doi: 10.1007/s40120-023-00552-y

Table 2.

Characteristics of survey respondents

Total sample MFIS MFI FSS PedsQL MF SMA-HI
Total,, n 253 158 162 146 150 142
Gender, n (%)
 Female 164 (64.82) 102 (64.56) 113 (69.75) 95 (65.07) 90 (60.00) 91 (64.08)
Age, in years
 Mean (SD) 38.21 (13.62) 37.89 (12.56) 37.96 (14.14) 38.65 (13.36) 37.53 (13.80) 39.09 (14.25)
 Range 18–79 18–78 18–79 18–79 18–78 18–79
Race, n (%)
 White 209 (82.61) 134 (84.81) 133 (82.10) 120 (82.19) 121 (80.67) 118 (83.10)
Income, n (%)
 ≤ $40,000 76 (30.04) 51 (32.28) 46 (28.40) 41 (28.08) 44 (29.33) 46 (32.39)
 $41,000-$100,000 92 (36.36) 55 (34.81) 57 (35.19) 58 (39.73) 60 (40.00) 45 (31.69)
 ≥ $101,000 39 (15.42) 22 (13.92) 28 (17.28) 22 (15.07) 22 (14.67) 23 (16.20)
 Unknown 46 (18.18) 30 (18.99) 31 (19.14) 25 (17.12) 24 (16.00) 28 (19.72)
Education, n (%)
 Associate degree or less 95 (37.55) 56 (35.44) 61 (37.65) 50 (34.25) 64 (42.67) 54 (38.03)
 Bachelor's degree 81 (32.02) 51 (32.28) 53 (32.72) 53 (36.30) 43 (28.67) 43 (30.28)
 Master's degree or higher 75 (29.64) 50 (31.65) 46 (28.40) 42 (28.77) 42 (28.00) 44 (30.99)
 Unknown 2 (0.79) 1 (0.63) 2 (1.23) 1 (0.68) 1 (0.67) 1 (0.70)
Age at diagnosis, in years, n 246 154 158 141 143 141
 Mean (SD) 8.13 (12.86) 7.60 (12.47) 8.48 (13.75) 8.09 (12.85) 8.49 (12.94) 8.04 (12.28)
 Range 0–77 0–71 0–77 0–77 0–71 0–77
SMA type, n (%)
 Type I 15 (5.93) 9 (5.70) 13 (8.02) 7 (4.79) 9 (6.00) 7 (4.93)
 Type II 113 (44.66) 73 (46.20) 69 (42.59) 66 (45.21) 73 (48.67) 58 (40.85)
 Type III 112 (44.27) 66 (41.77) 72 (44.44) 68 (46.58) 61 (40.67) 68 (47.89)
 Other/unknowna 13 (5.14) 10 (6.33) 8 (4.94) 5 (3.42) 7 (4.67) 9 (6.34)
SMN2 copies, n (%)
 ≤ 2 copies 36 (14.23) 23 (14.56) 23 (14.20) 20 (13.70) 21 (14.00) 20 (14.08)
 3 copies 81 (32.02) 53 (33.54) 52 (32.10) 47 (32.19) 49 (32.67) 42 (29.58)
 4 or more copies 36 (14.23) 16 (10.13) 38 (17.28) 24 (16.44) 18 (12.00) 22 (15.49)
 Unknown 100 (39.53) 66 (41.77) 59 (36.42) 55 (37.67) 62 (41.33) 58 (40.85)
Ever treated with an SMA-DMTb, n (%)
 Yes 191 (75.49) 116 (73.42) 122 (75.31) 112 (76.71) 114 (76.00) 108 (76.06)
 No 62 (24.51) 42 (26.58) 40 (24.69) 34 (23.29) 36 (24.00) 34 (23.94)

aOther/unknown SMA type included those with a non-5q SMA

bTreatment includes any SMA DMT received through a clinical trial and/or commercially available therapy