Table 2: Lesion characteristics of the concordant and discordant groups.

iFR ≤0.89
FFR >0.8
Discordance
(n = 42)
iFR ≤0.89
FFR ≤0.8
Both positive
(n = 139)
iFR >0.89
FFR >0.8
Both negative
(n = 85)
iFR >0.89
FFR ≤0.8
Discordance
(n = 38)
p-value

Age68.7 ± 11.666.0 ± 10.469.2 ± 10.566.0 ± 11.00.11
Female sex17 (40.5 %)16 (11.5%)21 (24.7 %)7 (18.4 %)0.001
Body mass index23.4 ± 3.824.0 ± 5.123.1 ± 3.524.0 ± 3.40.45
Diabetes mellitus, n (%)28 (66.7 %)96 (69.1 %)44 (51.8 %)18 (47.3 %)0.02
Hypertension, n (%)33 (78.6 %)108 (77.7 %)65 (76.5 %)27 (71.1 %)0.84
Dyslipidemia, n (%)30 (71.4 %)93 (66.9 %)58 (68.2 %)29 (76.3 %)0.70
Smoking, n (%)12 (28.6 %)61 (43.9 %)39 (45.8%)17 (44.7 %)0.25
Previous myocardial infarction, n (%)9 (21.4%)31 (22.3 %)28 (32.9%)6 (15.8 %)0.15
Revascularization, n (%)19 (45.2 %)71 (51.1 %)54 (63.5 %)21 (55.3 %)0.18
LVEF, %49.2 ± 11.648.8 ± 10.949.7 ± 12.151.5 ± 9.60.63
GFR, mL/min/1.73 m240.3 ± 27.837.3 ± 28.048.5 ± 27.560.0 ± 18.8<.0001
Hemodialysis, n (%)11 (26.2%)55 (39.6 %)20 (23.5%)1 (2.6%)<.0001

iFR, instantaneous wave-free ratio; FFR, fractional flow reserve; LVEF, left ventricular ejection fraction; GFR, glomerular filtration rate.
Data are expressed as number (percentage) or mean ± SD.