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. 2020 Apr;9(2):284–294. doi: 10.21037/tau.2020.02.18

Figure 3.

Figure 3

The diagnostic value of urinary ATP for BOO. (A) Linear regression analysis of urinary ATP concentration with BOOI for BPH patients. There was a significant positive correlation of urinary ATP with BOOI (r=0.5441, P<0.0001) for all BPH patients. (B) ROC curves of urinary ATP concentration among BPH patients. With the cut-off value of BOOI at 40, BPH patients were divided into two groups: with BOO (BOOI >40) and without BOO (BOOI <40). ATP (black line) and ATP/Cr (grey line) were plotted as continuous variables to distinguish between true-positive and false-positive rates. The AUC was 0.77 for ATP and 0.76 for ATP/Cr, which were both statistically significant (P<0.001).