Table 1 Demographics of the 200,859 unit admissions in the database.

From: The eICU Collaborative Research Database, a freely available multi-center database for critical care research

Data Median [IQR], Mean (STD), or Number (%)
Age, years (median [IQR]) 65.00 [53.00,76.00]
Unit length of stay, days (median [IQR]) 1.57 [0.82,2.97]
Hospital length of stay, days (median [IQR]) 5.49 [2.90,10.04]
Admission height, cm (mean (std))a 169.25 (13.69)
Admission weight, kg (mean (std))a 83.93 (27.09)
Gender (n (%))
 Male 108,379 (53.96)
 Female 92,303 (45.95)
 Other or Unknown 177 (0.09)
Ethnicity (n (%))
 African American 21,308 (10.61)
 Asian 3,270 (1.63)
 Caucasian 155,285 (77.31)
 Hispanic 7,464 (3.72)
 Native American 1,700 (0.85)
 Other/Unknown 11,832 (5.89)
Hospital discharge year (n (%))
 2014 95,513 (47.55)
 2015 105,346 (52.45)
 Unit type (n (%))
 Coronary Care Unit/Cardiothoracic ICU 15,290 (7.61)
 Cardiac Surgery ICU 9,625 (4.79)
 Cardiothoracic ICU 6,158 (3.07)
 Cardiac ICU 12,467 (6.21)
 Medical ICU 17,465 (8.70)
 Medical-Surgical ICU 113,222 (56.37)
 Neurological ICU 14,451 (7.19)
 Surgical ICU 12,181 (6.06)
Status at unit discharge (n (%))
 Alive 189,918 (94.55)
 Expired 10,907 (5.43)
 Unknown 34 (0.02)
Status at hospital discharge (n (%))
 Alive 181,104 (90.16)
 Expired 18,004 (8.96)
 Unknown 1,751 (0.87)
  1. Note that multiple unit admissions can correspond to the same patient.
  2. a Missing data excluded from calculation.