Figure 1.
A box plot showing median (horizontal line), upper, and lower quartile (large rectangle), as well as range (represented by the whiskers), for serum bone alkaline phosphatase (bALP) concentration for hemodialysis (HD) patients (subjects 1–22) and the healthy volunteers (subjects 23–34). The dashed lines represent the upper reference limit (22.4 μg/l) for the assay used. Note that study numbers are the same as in our previously published study,7 enabling direct comparison with parathyroid hormone (PTH) variability and concentrations within subjects.