Table 5.

Diagnostic and therapeutic procedures.

	Self-referral	Emergency medical services	p-value	OR (95% CI)
Number of patients	3789 (32.7%)	7792 (67.3%)
Diagnostic procedures
Coronary angiography	47.5%	60.0%	< 0.0001	0.60 (0.55–0.66)
Stress test before discharge	11.3%	7.8%	< 0.001	1.51 (1.22–1.87)
Timing of therapy
Emergency (directly)	20.3%	32.7%	< 0.0001	0.53 (0.48–0.58)
Within next day	16.9%	21.4%	< 0.0001	0.75 (0.67–0.83)
Elective	56.1%	39.7%	< 0.0001	1.94 (1.80–2.10)
No therapeutic consequences	19.5%	13.8%	< 0.0001	1.51 (1.27–1.78)
Therapy
Medical therapy only	68.7%	57.7%	< 0.0001	1.61 (1.48–1.75)
Percutaneous coronary intervention	24.0%	32.6%	< 0.0001	0.65 (0.60–0.72)
Coronary artery bypass surgery	0.6%	1.8%	< 0.0001	0.34 (0.22–0.54)
Pacemaker-implantation	1.4%	1.9%	< 0.05	0.70 (0.51–0.98)
ICD-implantation	0.5%	0.6%	0.30	0.75 (0.43–1.30)
Other therapy	5.3%	5.5%	0.71	0.97 (0.81–1.16)

OR: odds ratio; CI: confidence interval; CT: computed tomography: MRI: magnetic resonance imaging; ICD: implantable cardioverter defibrillator