Table 3.

Thirty-day Mortality and Readmission Rates for Medicare Fee-for-Service Beneficiaries Hospitalized with Acute Myocardial Infarction, Heart Failure, and Pneumonia at Veterans Affairs and non-Veterans Hospitals, 2010–2013.

	Observed			Risk-Standardized			Mean-aggregate within-MSA percentage difference between VA and non-VA hospitals (95% CI)	P-value
	VA hospitals	Non-VA hospitals	P-value	VA hospitals	Non-VA hospitals	P-value
Acute myocardial infarction
Mean 30-day mortality rate, % (95% CI)	11.62 (10.72, 12.52)	13.88 (13.63, 14.13)	<0.001	13.52 (13.38, 13.66)	13.69 (13.64, 13.74)	0.02	−0.22 (−0.40, −0.04)	0.02
Mean 30-day readmission rate, % (95% CI)	19.05 (19.10, 21.01)	17.16 (16.89, 17.43)	<0.001	17.84 (17.71, 17.96)	17.21 (17.17, 17.25)	<0.001	0.62 (0.48, 0.75)	<0.001
Heart failure
Mean 30-day mortality rate, % (95% CI)	8.92 (8.33, 9.52)	12.19 (12.01, 12.36)	<0.001	11.43 (11.11, 11.75)	11.87 (11.80, 11.93)	0.008	−0.63 (−0.95, −0.31)	<0.001
Mean 30-day readmission rate, % (95% CI)	24.34 (22.58, 25.11)	23.51 (23.29, 23.72)	0.03	24.66 (24.31, 25.02)	23.46 (23.39, 23.53)	<0.001	0.97 (0.59, 1.34)	<0.001
Pneumonia
Mean 30-day mortality rate, % (95% CI)	11.07 (10.41, 11.72)	12.33 (12.15, 12.52)	<0.001	12.63 (12.19, 13.07)	12.17 (12.08, 12.26)	0.05*	−0.03 (−0.46, 0.40)	0.90
Mean 30-day readmission rate, % (95% CI)	19.36 (18.61, 20.11)	18.61 (18.40, 18.82)	0.04	19.44 (19.19, 19.69)	18.68 (18.63, 18.73)	<0.001	0.66 (0.41, 0.91)	<0.001

VA = Veterans Affairs; CI = confidence interval

^*exact p-value = 0.0449

Crude numbers of mortality and readmissions: AMI mortality VA: 931, non-VA: 17,341; AMI readmission VA: 1,590, non-VA: 22,846; HF mortality VA: 2,042, non-VA: 26,428; HF readmission VA: 6,385, non-VA: 63,841; pneumonia mortality VA: 2,334, non-VA: 23,671; pneumonia readmission VA: 4,110, non-VA: 38,440