Characteristic | Univariable | Multivariable | ||||||
Spearman’s coefficient | P value | Correlation coefficient | P value | Correlation coefficient | P value | Correlation coefficient | P value | |
Age | 0.290 | <0.001 | 0.297 | <0.001 | 0.308 | <0.001 | 0.308 | <0.001 |
Female Sex | −0.127 | 0.121 | −0.152 | 0.042 | −0.150 | 0.048 | −0.148 | 0.049 |
Smoking history | 0.166 | 0.041 | 0.012 | 0.871 | 0.016 | 0.838 | 0.013 | 0.868 |
Hypertension | 0.191 | 0.019 | 0.071 | 0.344 | 0.070 | 0.358 | 0.073 | 0.338 |
Diabetes mellitus | 0.115 | 0.161 | 0.063 | 0.402 | 0.075 | 0.325 | 0.073 | 0.336 |
Previous MI | 0.252 | 0.002 | 0.214 | 0.005 | 0.213 | 0.006 | 0.213 | 0.006 |
FFR | −0.208 | 0.011 | −0.240 | 0.002 | −0.257 | <0.001 | −0.256 | <0.001 |
CFR | −0.251 | 0.002 | −0.191 | 0.012 | ||||
IMR | 0.063 | 0.445 | ||||||
MRR | −0.183 | 0.025 | −0.169 | 0.026 | ||||
RRR | −0.167 | 0.043 | −0.170 | 0.026 |
CFR, coronary flow reserve; FFR, fractional flow reserve; IMR, Index of Microcirculatory Resistance; MI, myocardial infarction; MRR, microvascular resistance reserve; RRR, resistive reserve ratio.