Figure 2
The associations among the BMI, body composition and the annual percent changes of bone phenotypes at the 3 year follow-up based on the generalised additive regression models (n = 1,149). There were four models: 1. Bone phenotype = f (BMI, covariates); 2. Bone phenotype = f (FM, covariates); 3. Bone phenotype = f (LM, covariates); 4. Bone phenotype = f (FM, LM, covariates). The covariates were age, height, YSM, physical activity, energy adjusted dietary calcium intake, calcium tablets intake at baseline and the corresponding baseline value for each bone phenotype. Each graph depicts the association between the independent variable and the dependent variable after removing the influences of the above listed covariates, as well as LM (for Model 4: FM only) and FM (for Model 4: LM only). Dotted lines represented the 95% confidence intervals. BMI, body mass index; YSM, years since menopause; FM, fat mass; LM, lean mass; BMD, bone mineral density; CSA, cross sectional area; CT, cortical thickness; SM, section modulus; BR, buckling ratio.
