Table 1. Patient data characteristics.

Number of unique ICU admissions	17,152
Admission Type (%)
Elective	18.0
Urgent	3.7
Emergency	78.3
Top 5 Primary ICD-9 Codes (%)
414.01—of native coronary artery	10.8
410.71—subendocardial infarction	4.7
038.9—unspecified septicemia	3.6
424.1—aortic valve disorders	2.9
518.81—acute respiratory failure	2.6
Gender (male %)	56.7
Age (years)	64.5 [17.0]
Vasopressor Therapy (%)	36.4
Mechanical Ventilation or CPAP (%)	58.1
SAPS	14.5 [5.1]
SOFA	6.3 [3.9]
30-day mortality (%)	15.1

Age, SAPS, and SOFA are shown in mean [standard deviation]. SAPS: Simplified Acute Physiology Score; SOFA: Sequential Organ Failure Assessment.