Table 3.

Acute myocardial infarction 30-day Readmission Logistic Regression Model (c-statistic 0.67)

Covariates	Odds Ratio	95% Confidence Limits		p-value
		Lower Limit	Upper Limit
Age (in years)	1.01	1.01	1.01	<.0001
Women vs. Men	1.17	1.13	1.20	<.0001
Income quartiles*, Q1 vs. Q4	1.17	1.13	1.20	<.0001
Income quartiles*, Q2 vs. Q4	1.13	1.07	1.19	0.0059
Income quartiles*, Q3 vs. Q4	1.07	1.02	1.13	0.34
Heart failure	1.47	1.42	1.51	<.0001
Chronic atherosclerosis	0.99	0.95	1.03	0.6129
Cardiac arrhythmia	1.11	1.08	1.15	<.0001
Valvular disease	1.10	1.06	1.14	<.0001
Stroke/transient ischemic attack	1.13	1.02	1.26	0.0237
Cerebrovascular disease	1.11	1.05	1.17	0.0004
Paralysis	1.20	1.00	1.44	0.0452
Peripheral vascular disease	1.18	1.14	1.22	<.0001
Diabetes mellitus	1.24	1.20	1.27	<.0001
Acute kidney injury	1.13	1.09	1.18	<.0001
End state renal disease/hemodialysis	2.11	1.99	2.23	<.0001
chronic kidney disease	1.23	1.19	1.28	<.0001
Chronic obstructive pulmonary disease	1.31	1.27	1.36	<.0001
Pneumonia	1.08	1.03	1.14	0.0024
Asthma	1.18	1.11	1.26	<.0001
Fluid/electrolyte disorder	1.13	1.09	1.17	<.0001
sepsis	1.19	1.08	1.30	0.0004
Solid malignancy	1.10	1.05	1.15	<.0001
Leukemia/metastatic malignancy	1.56	1.39	1.74	<.0001
Anemia	1.21	1.18	1.25	<.0001
Chronic skin ulcer	1.47	1.36	1.60	<.0001
Delirium/dementia	1.00	0.95	1.05	0.93
Malnutrition	1.06	0.99	1.13	0.0825
Anterior ST-elevation myocardial infarction	1.09	1.04	1.14	0.0002
Other ST-elevation myocardial infarction	0.90	0.85	0.94	<.0001
Prior myocardial infarction	1.04	1.00	1.09	0.082
Prior percutaneous coronary intervention	1.07	1.03	1.11	0.0004
Prior coronary artery bypass grafting	1.11	1.06	1.17	<.0001

^*Median household income quartiles based on patient zip code.