Table 2.

Factors associated with having acute coronary syndrome by logistic regression analysis.

Variables	Univariate odds ratio (95% confidence interval)	Adjusted odds ratio (95% confidence interval)
Male gender	0.731 (0.324, 1.648)	0.382 (0.117, 1.245)
Age	1.043 (1.006, 1.081)	1.036 (0.990, 1.084)
Having diabetes mellitus	4.318 (1.861, 10.019)	4.220 (1.445, 12.327)
Previous CAD	5.317 (20.34, 13.896)	3.333 (1.040, 10.684)
Having angina pain	12.750 (4.934, 32.945)	12.539 (3.876, 40.567)

Note. CAD: coronary artery disease; angina pain indicated having at least one feature of typical angina pain including chest tightness; squeeze pain at retrosternum, referred to shoulder, arm, or mandible; dyspnea or tachypnea, associated with sweating or palpitation without other obvious causes, syncope or fainting, or improved with sublingual nitroglycerin.