Characterizing the Assessment and Management of Vitamin D Levels in Patients with Osteoporosis in Clinical Practice: A Chart Review Initiative

Table 3

Results of multivariable GEE analysis examining potential associations with change in vitamin D supplementation.

Parameter	OR (95% CI)
Vitamin D level believed to be unsatisfactory	35.70 (12.69, 100.43)
Living in Ontario	2.32 (0.70, 7.64)
Treated for osteoporosis for less than 1 year	1.69 (0.62, 4.59)
No current therapy for osteoporosis	1.37 (0.81, 2.31)
Treated for osteoporosis for 1–5 years	1.31 (0.74, 2.33)
Decrease in BMD	1.29 (0.81, 2.04)
Serum 25(OH)D level	1.00 (0.98, 1.01)
Body mass index	0.99 (0.95, 1.02)
Treated by a general practitioner or family physician	0.65 (0.30, 1.39)

25(OH)D = 25-hydroxy vitamin D; BMD = bone mineral density; CI = confidence interval; GEE = generalized estimating equation; OR = odds ratio.