Table 1: Details of the MIMIC-III patient population by first critical care unit on hospital admission for patients aged 16 years and above.

From: MIMIC-III, a freely accessible critical care database

Critical care unit CCU CSRU MICU SICU TSICU Total
Distinct patients, no. (% of total admissions) 5,674 (14.7%) 8,091 (20.9%) 13,649 (35.4%) 6,372 (16.5%) 4,811 (12.5%) 38,597 (100%)
Hospital admissions, no. (% of total admissions) 7,258 (14.6%) 9,156 (18.4%) 19,770 (39.7%) 8,110 (16.3%) 5,491 (11.0%) 49,785 (100%)
Distinct ICU stays, no. (% of total admissions) 7,726 (14.5%) 9,854 (18.4%) 21,087 (39.5%) 8,891 (16.6%) 5,865 (11.0%) 53,423 (100%)
Age, years, median (Q1-Q3) 70.1 (58.4–80.5) 67.6 (57.6–76.7) 64.9 (51.7–78.2) 63.6 (51.4–76.5) 59.9 (42.9–75.7) 65.8 (52.8–77.8)
Gender, male, % of unit stays 4,203 (57.9%) 6,000 (65.5%) 10,193 (51.6%) 4,251 (52.4%) 3,336 (60.7%) 27,983 (55.9%)
ICU length of stay, median days (Q1-Q3) 2.2 (1.2–4.1) 2.2 (1.2–4.0) 2.1 (1.2–4.1) 2.3 (1.3–4.9) 2.1 (1.2–4.6) 2.1 (1.2–4.6)
Hospital length of stay, median days (Q1-Q3) 5.8 (3.1–10.0) 7.4 (5.2–11.4) 6.4 (3.7–11.7) 7.9 (4.4–14.2) 7.4 (4.1–13.6) 6.9 (4.1–11.9)
ICU mortality, percent of unit stays 685 (8.9%) 353 (3.6%) 2,222 (10.5%) 813 (9.1%) 492 (8.4%) 4,565 (8.5%)
Hospital mortality, percent of unit stays 817 (11.3%) 424 (4.6%) 2,859 (14.5%) 1,020 (12.6%) 628 (11.4%) 5,748 (11.5%)
  1. CCU is Coronary Care Unit; CSRU is Cardiac Surgery Recovery Unit; MICU is Medical Intensive Care Unit; SICU is Surgical Intensive Care Unit; TSICU is Trauma Surgical Intensive Care Unit.