Fig. 2From: Association between the tissue accumulation of advanced glycation end products and exercise capacity in cardiac rehabilitation patientsDistribution of SAF levels. The values of mean and median SAF levels were 2.9 ± 0.6 a.u and 2.8 a.u (interquartile range: 2.5, 3.2 a.u), respectively. Shapiro–Wilk test of normality: P <  0.05. SAF, skin autofluorescence; DM, diabetes mellitusBack to article page