Statistical analysis/ Model | Per vessel | Per patient | ||
---|---|---|---|---|
Fermi | DP | Fermi | DP | |
P values from t-test comparisons | ||||
MBF (G1 vs G2) | 0.02* | <0.0001 † | <0.00001* | <0.00001 † |
MPR (G1 vs G2) | <0.01* | <0.0001 † | <0.00001* | <0.00001 † |
MPR2 (G1 vs G2) | <0.00001* | <0.00001 † | <0.00001* | <0.00001 † |
AUCs from ROC analysis | ||||
MBF | 0.68 (0.55, 0.80) | 0.76 (0.65, 0.87) | 0.86 (0.77, 0.94) | 0.97 (0.92, 1.00) |
MPR | 0.69 (0.56, 0.81) | 0.79 (0.68, 0.89) | 0.85 (0.75, 0.94) | 0.94 (0.87, 1.00) |
MPR2 | 0.77 (0.66, 0.88) | 0.82 (0.72, 0.92) | 0.88 (0.80, 0.96) | 0.96 (0.91, 1.00) |
Thresholds on ROC analysis | ||||
MBF (mL/min/mL) | 2.49 | 1.75 | 2.60 | 2.00 |
MPR | 1.76 | 1.45 | 1.88 | 1.59 |
MPR2 | 1.36 | 1.07 | 1.49 | 1.47 |
P values from comparisons of ROC curves between haemodynamic parameters | ||||
MBF vs MPR | 0.81 | 0.54 | 0.80 | 0.35 |
MBF vs MPR2 | 0.04* | 0.19 | 0.45 | 0.68 |
MPR vs MPR2 | 0.0022* | 0.20 | 0.17 | 0.33 |
Difference in AUC of ROC curves between haemodynamic parameters | ||||
MBF vs MPR | -0.01 (-0.10, 0.08) | -0.03 (-0.11, 0.05) | 0.01 (-0.06, 0.08) | 0.03 (-0.03, 0.09) |
MBF vs MPR2 | -0.09 (-0.18, 0.01) | -0.06 (-0.14, 0.02) | -0.03 (-0.10, 0.04) | 0.01 (-0.04, 0.06) |
MPR vs MPR2 | -0.08 (-0.16, 0.01) | -0.03 (-0.09, 0.02) | -0.04 (-0.09, 0.01) | -0.02 (-0.06, 0.02) |