Stable patients with suspected myocardial ischemia: comparison of machine-learning computed tomography-based fractional flow reserve and stress perfusion cardiovascular magnetic resonance imaging to detect myocardial ischemia

Table 1 Baseline characteristics

Parameter	Mean value ± standard deviation or frequency
Age (years)	67 ± 9
Men	110 (78%)
Body-mass-index (kg/m²)	28 ± 5
Systolic blood pressure (mmHg)	154 ± 20
Diastolic blood pressure (mmHg)	86 ± 11
Heart rate (beats per min)	65 ± 13
Cardiovascular risk factors
Arterial hypertension^a	77 (64%)
Family history for CAD	55 (45%)
Hypercholesterolemia^b	47 (41%)
Diabetes mellitus	24 (20%)
Smoker	15 (12%)
Pre-test probability of CAD	20 ± 12
Baseline blood values
Cholesterol (mg/dl)	188 ± 50
High-density lipoprotein (mg/dl)	52 ± 15
Low-density lipoprotein (mg/dl)	118 ± 42
Triglycerides (mg/dl)	158 ± 103
Hemoglobin A1c (%)	6.0 ± 0.9
Creatinine (mg/dl)	1.0 ± 0.2
Baseline medication
Statin	63 (53%)
beta-blocker	39 (37%)
Aspirin	40 (34%)
Angiotensin-converting-enzyme inhibitor or AT₁ receptor blocker	30 (32%)
Calcium channel blocker	13 (14%)
P2Y₁₂ inhibitor	4 (3%)
Nitrates	3 (3%)

Unless otherwise specified, data are numbers of patients with percentage in parentheses. Data are mean ± standard deviation (SD). ^aDefined as blood pressure >140 mmHg systolic, >90 mmHg diastolic, or use of an antihypertensive medication. ^bDefined as a total cholesterol level of >200 mg/dL or use of lipid lowering medication. CAD = coronary artery disease, BMI = body mass index

ISSN: 1471-2261