Table 3.

Prediction model for low-risk conditions (missions without need of EMS care)

	p-value*	Odds ratio	Confidence interval, 99.9%
			Lower	Upper
Age	< 0.001	0.97	0.96	0.98
Male sex	< 0.001	0.58	0.41	0.82
Previous history of angina pectoris	< 0.001	1.92	1.22	3.00
Pale	< 0.001	0.36	0.23	0.58
Patient experiencing affected breathing		0.65	0.46	0.93
Sudden pain debut, within seconds	< 0.001	1.48	1.01	2.18
Constant pain	0.001	0.62	0.43	0.89
Pain in right arm	< 0.001	0.45	0.22	0.92
Pressuring pain	< 0.001	0.59	0.40	0.86
Left-sided chest pain	< 0.001	1.80	1.19	2.71

COPD chronic obstructive pulmonary disease, NRS  numeric rating scale

*Stepwise forward logistic regression, p-value for entry ≤ 0.001 and for exit ≤ 0.001