From:  Diagnostic performance of artificial intelligence in the syncope unit

 Patient characteristics.

VariableMean (SD)Median (Q1, Q3)Min–Maxn (%)
Demographics and anthropometrics
Age (years)61 (17)63 (50, 75)21–87—
Female sex———30 (54.5)
Height (cm)173 (9)172 (167, 180)155–193—
Weight (kg)77 (13)75 (66, 87)54–105—
Body mass index (kg/m2)26 (3.7)25 (23, 28)18–36—
Syncope characteristics
Syncopal episodes in previous 12 months2.11 (2.71)10–20—
Self-reported duration of loss of consciousness 0–5 min———48 (87.3)
Self-reported duration of loss of consciousness > 5 min———6 (10.9)
Recovery time after syncope (min)8.09 (25.20)00–180—
Immediately reoriented after syncope———46 (83.6)
Prodromal symptoms present———30/54 (55.6)
Prodrome duration (s)41.09 (116.23)20–720—
Previous diagnostic evaluation by general
Number of diagnostic tests performed before evaluation syncope-expert1.93 (1.37)20–7—
Fluid intake
Daily fluid intake (mL)1,636 (476)1,750500–2,500—
Fluid intake assessed———1 (1.8)
Lifestyle
Non-smoker———31 (56.4)
Ex-smoker———14 (25.5)
Current smoker———10 (18.2)
Alcohol intake———24 (43.6)
Substance use———1 (1.8)
Medical history
Cardiac genetic predisposition———29 (52.7)
Hypertension———16 (29.1)
Family members deceased before age 55 years———6 (10.9)
Diabetes mellitus———6 (10.9)
Coronary artery disease———5 (9.1)
Hypercholesterolaemia———4 (7.3)
Cerebrovascular accident———4 (7.3)
Pulmonary embolism———3 (5.5)
Heart valve disease———1 (1.8)
Congenital heart disease———0 (0.0)
Parkinson’s disease———0 (0.0)
Epilepsy———0 (0.0)
Deep vein thrombosis———0 (0.0)
Medication use
Any medication use———37 (67.3)
Number of medications per patient2.98 (3.26)20–14—
Antihypertensive, heart-rate-lowering or antianginal medication———18 (32.7)
Gastrointestinal medication and laxatives———15 (27.3)
Endocrine, bone and vitamin supplementation———13 (23.6)
Antithrombotic medication———13 (23.6)
CNS-active medication———12 (21.8)
Lipid-lowering medication———12 (21.8)
Allergy, ENT or ophthalmic medication———5 (9.1)
Hormonal contraception———5 (9.1)
Diabetes medication———4 (7.3)
Respiratory medication———4 (7.3)
Analgesic or anti-inflammatory medication———4 (7.3)
Rheumatologic, immunosuppressive or gout medication———4 (7.3)
Urogenital medication———2 (3.6)
Smoking cessation medication———2 (3.6)
Anti-infective medication———1 (1.8)

Fifty-five patients analyzed in the syncope unit by the syncope-expert.