Table 3.

Logistic regression models for each variable separately on ACS.

Variables	Odds ratio	95% CI	P  value
Age	2	1.29–3.09	0.002
Gender (female : male)	0.4	0.20–0.80	0.0094
Coronary heart disease	2.82	1.50–5.31	0.0013
Other heart disease	0.29	0.10–0.83	0.021
Other cardiovascular disease	1.54	0.65–3.62	0.328
History of thromboembolic disease	0.87	0.24–3.11	0.828
Chronic lung disease	0.63	0.23–1.70	0.36
Diabetes mellitus	1.51	0.57–4.01	0.404
Arterial hypertension	0.68	0.34–1.37	0.281
Cigarette smoker	0.76	0.32–1.79	0.522
History of cigarette smoking	0.86	0.36–2.04	0.728
Dyslipidemia	1.24	0.44–3.49	0.688
Familial history of coronary heart disease	0.73	0.27–1.98	0.537
Cancer	0.24	0.03–1.87	0.175
Referred with chest pain	0.68	0.37–1.24	0.212
Referred with dyspnoea	0.27	0.10–0.70	0.0069
Referred with suspected ACS	10.8	4.86–23.9	<0.001
Symptoms lasting <1 hour	0.87	0.10–7.62	0.902
Symptoms lasting 1–6 hours	0.67	0.29–1.58	0.362
Symptoms lasting >6 hours	2.03	0.96–4.29	0.063
Symptom lasting one day or more	0.26	0.11–0.60	0.0015
Symptom chest pain	3.46	1.32–9.05	0.012
Oppressive retrosternal chest pain radiating to arms or neck	37.6	16.0–88.2	<0.001
Nonradiating oppressive retrosternal chest pain	1.29	0.61–2.71	0.5
Burning chest pain	0.62	0.075–5.13	0.656
Respiration-dependent chest pain	0.13	0.03–0.57	0.0064
Stabbing chest pain	0.29	0.10–0.85	0.023
Nonspecific chest pain	0.11	0.032–0.35	0.0002
Symptom dyspnoea	0.91	0.46–1.81	0.792
Cough	0.16	0.05–0.53	0.0027
Heartburn	0.72	0.16–3.31	0.672