Rate Pressure Products Affect the Relationship between the Fractional Flow Reserve and Instantaneous Wave-Free Ratio

Table 1

Patients’ characteristics.

Patients’ variables	n = 195
Age	68.8 ± 10.4
Men	45 (23.1%)
Body mass index (kg/m^2)	23.9 ± 3.5
Diabetes mellitus	113 (57.9%)
Hypertension	141 (72.3%)
Hyperlipidemia	131 (67.2%)
Smoking	69 (35.4%)
Prior myocardial infarction	58 (29.7%)
Revascularization	105 (53.8%)
Left ventricular ejection fraction (%)	51.3 ± 9.7
Chronic kidney disease (>stage II)	102 (52.3%)
Glomerular filtration rate (mL/min/1.73 m^2)	60.4 ± 16.4

Data are expressed as mean ± standard deviation or as number (percentage).