Table 4.

Independent factors associated with systolic dysfunction (LVEF ⩽ 40%) in a logistic regression model

	OR	95% CI for OR	p Value
Model 1 factors: medical history
Male sex	3.87	1.72 to 8.73	0.001
Admission for pulmonary congestion	6.92	2.34 to 20.42	0.0005
Admission for MI	11.41	4.57 to 28.46	<0.0001
Breathlessness	3.08	1.35 to 7.01	0.007
Model 2 factors: CV and related diseases, ECG, and blood tests
Systolic BP (low, decrease per mm Hg)	1.02	1.01 to 1.04	0.02
Definite IHD	10.71	3.08 to 37.23	<0.0001
Abnormal ECG	33.59	7.49 to 150.65	<0.0001
Plasma creatinine (increase per μmol/l)	1.05	1.02 to 1.07	<0.0001

Model 1 variables are age, sex, hypertension, DM, COPD, CAD, congestive HF, admission for pulmonary congestion, admission for ankle swelling, ankle swelling, admission for MI, chest pains on exertion, shortness of breath. Model 2 variables are age, sex, systolic BP, diastolic BP, heart rate, definite IHD, definite hypertension, definite DM, definite COPD, abnormal ECG, atrial fibrillation, plasma creatinine.