MIT

Version 2.4

Changelog:

  • Bug #5: Fix problems with icustay generation
  • Bug #13: Fix in "Unknown" service type in icustay_detail
  • Bug #21: Rename ORDER column in PARAMETER_MAPPING table
  • Bug #26: Make event date fields consistent
  • Bug #27: Rename d_labitems.lab_category to category for consistency with other item tables
  • Bug #40: Modify SAPS I calculation to correctly account for ventilated patients
  • Feature #11: Delete the materialized view VITAL_SIGNS_RAW, because this was just a temporal data  to  be used by some statistics calculations.
  • Feature #12: Add indices on cgid, itemid to chartevents
  • Feature #14: Add AKI materialized view
  • Feature #15: Add organ system failure materialized view
  • Feature #16: Restore the Physionet 2009 challenge patients
  • Feature #34: Re-generate SAPS scores after fixing Icustay problems
  • Change request #36: Make the "Length Of Stay" columns consistent in minutes
  • Change request #37: Replace ICUSTAY materialized view with ICUSTAYEVENTS table
  • Change request #38: Make consistent some column names in ICUSTAY_DETAIL

Database statistics:


MIMIC II Adult records summary

( Download the full report [PDF] and the SQL source code )


N* #cases** (%unit) mean ±std median IQR (Q1,Q3)
Hospital admissions 22,870



ICU Stays 25,328



Age (years) 25,328
63.3 ±17.7 65.20 26.1 (51.3,77.4)
Gender (male) 25,328 14,259 (56.3%)


ICU Los (days) 25,328
4.7 ±11 2.20 3.3 (1.1,4.4)
Hospital Los (days) 22,870
10.7 ±13 7.00 9 (4,13)
SAPS I - day 1 *** 20,142
13.4 ±5.3 13.00 7 (10,17)
SAPS I - day 2 *** 13,495
11.8 ±4.6 11.00 6 (9,15)
SAPS I - day 3 *** 9,070
12.2 ±4.5 12.00 6 (9,15)
Mechanical ventilation 25,328 11,969 (47.3%)


Invasive Swan-Ganz hemodynamic monitoring 25,328 5,637 (22.3%)


Invasive arterial blood pressure monitoring 25,328 14,054 (55.5%)


Use of vaso-active medications 25,328 8,693 (34.3%)


Hospital mortality 22,870 2,666 (11.7%)








* N = The number of ICUStays or Hospitalizations. that were included in the calculation for the given ICU Unit.

** #cases = The number of ICUStays orHospitalizations that match the category criteria. For example: In Gender, #cases will be the number of male ICUStays in a unit.

*** Only ICUStays where they have all 14 SAPS parameters were included. 2nd and 3rd day data comes from version 2.5 of the database.