Figure 2

Average foot sole hydration evolution with age on (a) all non-diabetic subjects (red circles, \(\mathrm {n}=98\)) and non-diabetic subjects above 40 years old (blue diamonds, \(\mathrm {n}=83\)). (b) Diabetic subjects above 40 years old (\(\mathrm {n}=80\)). (c) Average foot sole hydration evolution as function of the time since diagnosis of diabetes. Linear fits to the data and confidence intervals are represented by solid lines and shaded areas, respectively.