OR (95% CI) are adjusted for age (Model 1), and then for BMI, smoking, alcohol consumption, physical activity level, mobility disability, serum 25OHD, PTH, follow-up duration, DM, Oral glucocorticoid or antiepileptic drugs, and anti-bone loss drug (Model 2).
Bars indicate 95% confidence intervals. Dotted line, null value (OR = 1.0).