Table 1.

Baseline characteristics of the patients included in this analysis

CharacteristicsSuccessful FitNo Successful Fit
n286
Age59.0 [52.8–64.2]53.5 [50.5–65.5]
Men, n (%)21 (75.0)2 (33.3)
BMI, mean (SD)26.6 (4.1)29.4 (4.9)
Office systolic BP, mm Hg, median [IQR]138.5 [125.0–152.2]155.5 [142.8–164.5]
Office diastolic BP, mm Hg, median [IQR]74.0 [68.8–91.2]82.5 [79.0–83.0]
History of diabetes, n (%)10 (35.7)1 (16.7)
History of cardiovascular disease, n (%)19 (67.9)4 (66.7)
History of smoking, n (%)15 (53.6)4 (66.7)
Plasma creatinine, mmol/L, median [IQR]77.0 [67.8–94.5]78.0 [68.8–85.8]
eGFR, ml/min per 1.73 m2, median [IQR]94.6 [74.4–98.6]87.2 [63.9–100.0]
Plasma total cholesterol, mmol/L, mean (SD)4.0 (0.9)3.7 (0.7)
Plasma total LDL, mmol/L, mean (SD)2.4 (0.7)2.0 (0.5)
Microalbuminuria, n (%)6 (26.1)2 (50.0)
Use of ACE inhibitors or ARBs, n (%)15 (53.6)6 (100.0)
Use of antihypertensive medication, n (%)20 (71.4)6 (100.0)
RFR, median [IQR]1.9 [1.6–2.6]1.7 [1.6–1.9]
Renal artery stenosis, n (%)3 (10.7)1 (16.7)
  • RFR is defined as the hyperemic mean flow velocity divided by the baseline mean flow velocity. Data on albuminuria were available for 27 patients. ACE, angiotensin-converting enzyme; ARB, angiotensin receptor blocker; RFR, renal flow reserve.