Table 5.

Associations Between Fracture Healing and 25(OH)D Serum Concentration

Outcome measure	Estimated beta coefficient (80% CI)	p value
FIX‐IT Score at 3 months
Enrollment serum 25(OH)D concentration	0.002 (−0.04, 0.05)	0.95
Change in serum 25(OH)D concentration from baseline to 3 months	0.009 (−0.01, 0.03)	0.51
Serum 25(OH)D concentration at 3 months	0.01 (−0.01, 0.03)	0.48
RUST score
Enrollment serum 25(OH)D concentration	−0.03 (−0.07, 0.02)	0.44
Change in serum 25(OH)D concentration from baseline to 3 months	0.01 (−0.01, 0.03)	0.31
Serum 25(OH)D concentration at 3 months	0.01 (−0.01 0.03)	0.48

25(OH)D = 25‐hydroxyvitamin D; CI = confidence interval; FIX‐IT = function index for trauma; RUST = radiographic union score for tibial fractures.