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. 2017 Feb 16;12(2):e0172538. doi: 10.1371/journal.pone.0172538

Fig 3. Correlation between acetylcholine and CPT coronary artery diameter changes stratified by endothelial function and CPT type (n = 163).

Fig 3

Data are plotted as percent changes from baseline to post Ach or CPT. There was moderate correlation in subjects with abnormal endothelial function who underwent forehead CPT, subjects with normal endothelial function and forehead CPT and those with abnormal endothelial function and forearm CPT (3A: r = 0.395, P = 0.33), (3B: r = 0.396, P = 0.017), (3C: r = 0.346, P = 0.23) respectively. There was strong correlation in subjects with normal endothelial function who underwent forearm CPT (3D: r = 0.74, P<0.001).