Bone mineral density and its influencing factors in Chinese children with spinal muscular atrophy types 2 and 3

Table 4 Influencing factors for TBLH BMD Z-scores in children with SMA

	Coefficients	Standardized Coefficients	t	p-value
Sex	−0.574	−0.159	−0.943	0.353
Age at DXA	0.008	0.014	0.058	0.954
Disease course	−0.149	−0.238	−0.946	0.351
Phenotype	1.599	0.441	2.847	0.008
PTH	0.068	0.417	2.572	0.015
25-OH-D	0.004	0.040	0.214	0.832
ASMR Z-score	−0.015	−0.010	−0.057	0.955

R² = 0.433
TBLH total body less head, BMD bone mineral density, SMA spinal muscular atrophy, DXA dual-energy X-ray absorptiometry, PTH parathormone, ASMR appendicular skeletal muscle mass weight ratio

ISSN: 1471-2474