SMA 2 (n = 22) | SMA 3 (n = 18) | t/z/χ2 | p-Value | |
---|---|---|---|---|
Sex (male/female) | 8/14 | 11/7 | 2.431 | 0.119 |
Age (y) at DXA | 5.5 (4.1, 9.5) | 5.4 (4.3, 3.9) | − 0.122 | 0.904 |
Disease course (y) | 4.5 (3.2, 8.9) | 3.9 (2.1, 5.4) | −1.251 | 0.219 |
TBLH BMD Z-scores | −3.7 ± 1.6 | −2.0 ± 1.7 | 3.344 | 0.002 |
LS BMD Z-scores | −1.9 ± 1.2 | −0.6 ± 1.4 | 3.266 | 0.002 |
ASMR Z-scores | −3.6 ± 1.1 | −2.7 ± 1.3 | 2.476 | 0.018 |
Low BMD (%) | 86.4 | 44.4 | 6.955 | 0.008 |
Osteoporosis(n) | 0 | 1 |