Figure 4 Association of femoral cystathionine β synthase (CBS) expression with clinical characteristics. (A) Correlation between femoral CBS expression and serum calcium levels. (B) Correlation between femoral CBS expression and serum phosphorus levels. (C) Correlation between femoral CBS expression and serum alkaline phosphatase (ALP) levels. (D) Correlation between femoral CBS expression and serum hemoglobin levels. (E) Correlation between femoral CBS expression and serum triglycerides levels. (F) Correlation between femoral CBS expression and fasting blood glucose levels. (G) Correlation between femoral CBS expression and femoral T value. Multivariate forward stepwise linear regression analysis was used to identify the correlation between femoral CBS expression and clinical characteristics.