Association between the reported intensity of an acute symptom at first prehospital assessment and the subsequent outcome: a study on patients with acute chest pain and presumed acute coronary syndrome

Table 5 Strength of the association

	OR (95% CI)^a	p
Before arrival in hospital
Hypotension requiring treatment
unadjusted	1.31 (1.02,1.69)	0.04
adjusted^b	1.22 (0.92,1.62)	0.16
AV-block/bradyarrhythmias requiring treatment
unadjusted	2.23 (1.44,3.45)	0.0003
adjusted^b	2.52 (1.39,4.57)	0.16
After arrival in hospital
Heart failure requiring treatment
unadjusted	1.11 (1.01,1.23)	0.03
adjusted^b	1.26 (1.12,1.43)	0.0002
Anxiety requiring treatment
unadjusted	1.14 (1.04,1.26)	0.008
adjusted^b	1.18 (1.05,1.33)	0.005
Pain requiring treatment
unadjusted	1.14 (1.07,1.22)	< 0.0001
adjusted^b	1.17 (1.08,1.26)	< 0.0001
Final diagnosis of AMI
unadjusted	1.14 (1.06,1.23)	0.0003
adjusted^b	1.13 (1.04,1.23)	0.003
Final diagnosis of AMI or angina pectoris
unadjusted	1.09 (1.02,1.17)	0.009
adjusted^b	1.11 (1.03,1.20)	0.007
Length of hospitalisation
unadjusted	r = 0.11	< 0.0001
adjusted^b	r = 0.14	< 0.0001

^aodds ratio per unit in the VAS scale with corresponding 95% confidence interval, except for length of hospitalization, where Spearman’s rank correlation between VAS value and number of days are given
^badjusted for age, a history of smoking and a history of heart failure

ISSN: 1471-2261