Table 3.

Characteristics of Patient Cohort with Invasive Hemodynamic Measurements (N=872) by vital status (in-hospital mortality within 30 days) – Stage 2

Characteristic	Mean±SE or %		p-value
	Dead	Alive
N	435	437
Age, years	69.2±0.2	63.8±0.3	<.001
Age ≥ 75 years	30.1%	17.6%	<.001
Male	61.6%	65.9%	.188
White, non-Hispanic	19.2%	19.7%	.850
MI to Shock, hours	16.4±1.3	19.3±1.6	.154
Shock on Admission	21.9%	14.0%	.004
Prior MI	38.9%	29.2%	.003
History of Hypertension	52.8%	48.8%	.246
Diabetes	36.6%	28.9%	.018
Prior CABG	11.0%	7.0%	.040
Prior PCI	7.0%	7.6%	.735
Weight, lb	162.3±2.1	173.0±2.1	<.001
Systolic BP near shock, mmHg*	89.7±1.1	94.7±1.0	<.001
Heart rate near shock, bpm*	101.5±1.2	97.0±1.2	.006
Anoxic brain damage	3.7%	0.5%	.005
End-organ hypoperfusion	97.1%	88.1%	<.001
Initial serum creatinine, mg/dl	1.82±0.08	1.57±0.08	.049
Creatinine <1.9 mg/dl	30.2%	19.9%	.005
Left ventricular ejection fraction, %	26.9±0.9	33.1±0.7	<.001
Cardiac index, L/min/m2	1.78±0.04	2.09±0.04	<.001
PCWP, mmHg	24.9±0.4	22.9±0.4	<.001
Stroke work, g/m†	18.5±0.7	27.5±0.9	<.001
Stroke work index, g/m/m2†	10.0±0.4	14.3±0.4	<.001
Systemic vascular resistance, dyne sec/cm5	1426±40	1294±32	.023
Mean right atrial pressure, mmHg	15.2±0.4	15.2±0.5	.993
Cardiac power index, watt/m2†	0.26±0.01	0.33±0.01	<.001

BP=blood pressure; CABG=coronary artery bypass grafting; MI=myocardial infarction, PTCA=percutaneous transluminal coronary angioplasty

^*on support measures, including vasopressors, inotropes±IABP;72% of values reported without IABP support

^†Stroke work index = (MAP-PCWP)*0.0136*(CO/HR)*1000/body surface area, where MAP=mean arterial pressure, mmHg; PCWP=pulmonary capillary wedge pressure, mmHg; CO=cardiac output, L/min; HR=heart rate

Cardiac power index=MAP*cardiac index/451