Does interhospital transfer improve outcome of acute myocardial infarction? A propensity score analysis from the Cardiovascular Cooperative Project

Table 4 Odds ratios for 30-day mortality in propensity score matched patients across model groups

	Transferred v Non-Transferred (Referent)			Rural v Urban (Referent)
	O.R.	95% C.I.		O.R.	95% C.I.
Assigned Model Covariates
Model Groups (vs Referrent)	0.80	0.76	0.84	1.05	0.99	1.11
Age	1.38	1.35	1.41	1.43	1.39	1.47
Ethnicity (African American as Referent)	0.89	0.79	1.01	0.87	0.77	0.98
Gender (Female as Referent)	1.14	1.09	1.20	1.12	1.07	1.18
Cardiac Arrest	6.66	6.33	7.02	6.23	5.91	6.58
Congestive Heart Failure	2.14	2.04	2.25	2.01	1.91	2.11
Systolic Blood Pressure on Admission	0.71	0.69	0.73	0.66	0.65	0.68
Serum Creatinine on Admission	1.20	1.18	1.22	1.23	1.20	1.26
White Blood Cell Count on Admission	1.26	1.24	1.29	1.25	1.22	1.28
Anterior or Lateral MI	1.49	1.42	1.56	1.51	1.44	1.58
Therapy (1 vs 0)	0.44	0.40	0.49	0.45	0.41	0.49
Therapy (2 vs 0)	0.29	0.27	0.32	0.30	0.28	0.33
Therapy (3 vs 0)	0.72	0.63	0.84	0.65	0.55	0.78
Therapy (4 vs 0)	0.24	0.22	0.26	0.25	0.23	0.28
Technology (1 vs 0)	0.98	0.92	1.05	1.06	0.99	1.13
Technology (2 vs 0)	0.99	0.85	1.15	1.17	0.99	1.37
Technology (3 vs 0)	0.91	0.84	0.98	1.02	0.94	1.11
Hospital Bed Size	0.99	0.97	1.03	0.99	0.95	1.02
Teaching Hospital (vs Non-Teaching)	0.89	0.83	0.94	0.93	0.87	0.99
C-Statistic	0.82			0.82

O.R. for Age, SBP, Serum Creatinine, WBC, and Hospital Bed Size represent 1 standard deviation unit.
O.R. refers to Odds Ratio
C.I. refers to Confidence Interval

ISSN: 1471-2261