Table A2.

Differences in Measured Characteristics by End-of-Life Measures: Sample of Patients Admitted for AMI

	Total (ICU and Non-ICU) Hospital Days			ICU Days
	Above Median	Below Median	Difference/Std. Dev.	Above Median	Below Median	Difference/Std. Dev.
Inpatient spending	4.336	3.263	0.216	4.544	2.974	0.320
Thirty-day mortality	0.151	0.148	0.009	0.150	0.150	0.001
Patient characteristics
Age	77.34	77.25	0.023	77.31	77.35	−0.007
Male	0.507	0.528	−0.041	0.516	0.518	−0.004
Number of comorbidities	2.212	2.081	0.084	2.184	2.114	0.044
Hypertension	0.591	0.573	0.038	0.587	0.578	0.018
COPD	0.242	0.236	0.015	0.241	0.237	0.009
Diabetes	0.257	0.241	0.036	0.251	0.249	0.005
CHF	0.074	0.060	0.057	0.070	0.065	0.022
Peripheral vascular disease	0.104	0.103	0.003	0.104	0.104	0.001
Renal failure	0.073	0.063	0.040	0.072	0.064	0.031
Predicted mortality	0.152	0.147	0.056	0.151	0.149	0.021
Hospital spending on other patients
Average total charge general surgery patient	2.213	1.793	0.427	2.301	1.672	0.664
Average total charge vascular surgery patient	2.534	2.182	0.330	2.653	2.021	0.621
Average total charge orthopedic surgery patient	3.598	3.001	0.313	3.763	2.760	0.545

Notes: Difference/Std. Dev is the difference divided by the standard deviation if the variable is continuous. If it is a dichotomous variable, then this column reports the difference divided by the sample mean.

1. Average total charges for surgery patients are for patients without a complication and who are not part of the analyses.