Table 1

Clinical characteristics and prehospital findings in study patients with and without non-ST-elevation myocardial infarction (NSTEMI) requesting ambulance due to chest pain, Sorlandet Hospital 2017–2020

Patients without NSTEMIPatients with NSTEMI
n=231n=22
Mean age (year (SD))61 (17)71 (13)
Male, n (%)135 (58)16 (73)
Smoking (current or previous), n (%)155 (67)11 (50)
Mean body mass index (kg/m2 (SD))27 (5)28 (3)
Lipid-lowering therapy, n (%)89 (39)4 (18)
Chronic obstructive pulmonary disease, n (%)29 (13)0 (0)
Antihypertensive therapy, n (%)92 (40)8 (36)
Diabetes, n (%)33 (14)3 (14)
Previous coronary heart disease
 Myocardial infarction, n (%)56 (24)4 (18)
 Percutaneous coronary intervention, n (%)55 (24)4 (18)
 Coronary artery bypass grafting, n (%)17 (7)2 (9)
Previous stroke, n (%)18 (8)2 (9)
Median time from onset of symptoms to emergency call (min (IQR))131 (45, 490)128 (20, 218)
Ongoing chest pain, n (%)175 (76)20 (91)
Mean systolic BP (mm Hg (SD))144 (24)160 (21)
Mean diastolic BP (mm Hg (SD))86 (15)95 (11)
HR (bpm) (SD)77 (17)72 (17)
Atrial fibrillation, n (%)14 (6)0 (0)