Intra-aortic balloon pump placement in coronary artery bypass grafting patients by day of admission

Table 3 Multivariable logistic regression for odds of IABP placement

Factor	Odds Ratio	95% Confidence Interval	p-value
Day of Admission
Weekday	Reference
Weekend	1.30	1.21–1.40	< 0.001
Age Category
> 70 age	Reference
60–69 age	1.06	0.97–1.15	0.221
50–59 age	1.06	0.95–1.17	0.320
40–49 age	1.09	.94–1.27	0.245
18–39 age	1.79	1.41–2.28	< 0.001
Race
White	Reference
Black	0.91	0.68–0.95	0.012
Hispanic	1.04	0.93–1.16	0.510
Asian	1.10	0.98–1.23	0.095
Other	1.03	0.73–1.45	0.875
Insurance
Private Coverage	Reference
MediCal	1.01	0.84–1.22	0.900
Medicare	0.89	0.77–1.04	0.163
Self-Pay	1.28	1.02–1.61	0.031
Other Non-Federal Indigent	0.95	0.75–1.22	0.706
Other	1.21	0.81–1.82	0.352
BMI Class
Not Coded	Reference
BMI 25–29.9	0.89	0.80–0.98	0.022
BMI > 30	0.90	0.79–1.01	0.081
Heart Failure	2.17	2.09–2.48	< 0.001
Severe Peripheral Vascular Disease	0.66	0.59–0.75	< 0.001
Aortic/Iliofemoral Bypass Grafts	1.6	1.10–2.34	0.015
Aortic Regurgitation	0.73	0.26–2.04	0.549
Sustained Tachyarrhythmias	1.96	1.77–2.17	< 0.001
Acute Coronary Syndrome	0.48	0.44–0.53	< 0.001
Hospital Characteristics
Beds
228+ Beds	Reference
122–227 Beds	1.23	0.66–2.31	0.509
52–121 Beds	1.15	0.82–1.62	0.43
< 52 Beds	0.94	0.82–1.08	0.404
Urbanicity
Urban	Reference
Non-Urban	1.27	0.91–1.79	0.164
Teaching Status
Teaching	Reference
Non-Teaching	0.67	0.48–0.93	0.018
Hospital Volume
< 199 Patients	Reference
200–399 Patients	0.79	0.63–1.01	0.055
400–699 Patients	0.43	0.33–0.56	< 0.001
> 700 Patients	0.49	0.41–0.58	< 0.001

ISSN: 1749-8090