Table 3.

Relationship of the Highest Quartile of CPS and Hospital Characteristics

Hospital Variables	OR	95% CI	P Value
Hospital bed number per 10 beds	1.02	1.01 to 1.03	<0.001
Number of patients with AMI per 10	1.12	1.10 to 1.15	<0.001
Cardiac surgery division	1.64	1.23 to 2.17	<0.001
Number of cardiologists per number of AMIs
First quartile	Ref	Ref
Second quartile	1.10	0.77 to 1.57	0.6
Third quartile	0.91	0.63 to 1.32	0.62
Fourth quartile	0.71	0.48 to 1.04	0.075

P<0.05 is statistically significant. AMI indicates acute myocardial infarction; CPS, composite prescription score; OR, odds ratio.