Table 2.

Independent determinants for prehospital or in-unit life-threatening or fatal events (c = 0.708) and their weight (1–3) for building the low-risk CPU score

Variable	OR	CI	p value	Weight
Gender (male)	1.71	1.12–2.63	0.013	1
First onset of symptoms	2.03	1.38–2.97	< 0.001	2
Syncope	2.50	1.47–4.26	0.002	2
Dyspnea/arrhythmias	1.64	1.11–2.41	0.013	1
Prior MI	2.11	1.24–3.57	0.006	2
Heart failure	1.86	1.04–3.33	0.036	2
ICD/CRT‑D	3.33	1.69–6.57	< 0.001	3
Prior PCI	0.44	0.25–0.76	0.004	–

MI myocardial infarction, PCI percutaneous coronary intervention, ICD internal cardioverter defibrillator, CRT‑D cardiac resynchronization therapy and defibrillator, OR odds ratio, CI confidence interval