Pre-hospital delay in patients with first time myocardial infarction: an observational study in a northern Swedish population

Table 3 Characteristics associated with prolonged pre-hospital delay in patients with first time myocardial infarction

Characteristic	Total prehospital delay ≥ 2 h		Decision time ≥ 2 h
Characteristic	Adjusted OR (95 % CI)	P-value	Adjusted OR (95 % CI)	P-value
Personal visit to a GP before referral	10.77 (2.39–48.59)	0.002	3.85 (1.66–8.90)	0.002
Referred by call to a primary care centre/Swedish Healthcare Direct	3.82 (1.68–8.68)	0.001	2.00 (1.03–3.87)	0.041
Chest pain predominating symptom at triage	0.24 (0.08–0.77)	0.016	0.34 (0.12–0.90)	0.031
Distance to hospital, km	1.03 (1.02–1.04)	<0.001	1.00 (1.00–1.01)	0.586

Total pre-hospital delay is the time between onset of symptoms suggestive of myocardial infarction and admission to the hospital. Decision time is the time between onset of symptoms suggestive of myocardial infarction and the call to Emergency Medical Services

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