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Table 1 Clinical characteristics

From: Temporal trends in the utilization of vasopressors in intensive care units: an epidemiologic study

Characteristics Total Year
2007 2008 2009 2010 2011 2012 2013
N 72,005 10070 10373 10006 10265 10682 10473 10136
Age, year (mean ± SD) 63 ± 17 63 ± 17 63 ± 17 63 ± 17 63 ± 17 63 ± 17 63 ± 17 63 ± 17
Male sex, n (%) 41,633 (58) 5741 (57) 5953 (57) 5889 (59) 5928 (58) 6205 (58) 6004 (57) 5913 (58)
White, n (%) 66,007 (92) 9117 (91) 9356 (90) 8959 (90) 9452 (92) 9969 (93) 9739 (93) 9415 (93)
BMI, kg/m2 (mean ± SD) 29.8 ± 8.0 29.6 ± 7.8 29.6 ± 8.0 29.8 ± 8.1 29.8 ± 8.0 29.8 ± 7.9 29.9 ± 7.9 30.0 ± 8.1
ICU type (%)         
  - Cardiac surgery ICU 15,631 (22) 2055 (20) 2104 (20) 2220 (22) 2415 (24) 2257 (21) 2246 (21) 2334 (23)
  - Cardiac care unit 8,807 (12) 1372 (14) 1327 (13) 1247 (12) 1206 (12) 1310 (12) 1162 (11) 1183 (12)
  - Medical ICU 16,863 (23) 2202 (22) 2315 (22) 2323 (23) 2431 (24) 2527 (24) 2540 (24) 2525 (25)
  - Surgical ICU 19,997 (28) 2825 (28) 3046 (29) 2773 (28) 2893 (28) 2908 (27) 2921 (28) 2631 (26)
  - Mixed ICU 10,707 (15) 1616 (16) 1581 (15) 1443 (14) 1320 (13) 1680 (16) 1604 (15) 1463 (14)
Admission SOFA score (median, IQR) 4 (2–7) 4 (2–7) 4 (2–7) 4 (2–7) 4 (2–7) 4 (2–7) 4 (2–7) 4 (2–7)
Admission APACHE III score (mean ± SD) 67 ± 26 66 ± 27 67 ± 26 67 ± 26 67 ± 25 68 ± 26 67 ± 26 65 ± 25
Mechanical ventilator use in ICU, n (%) 28,844 (40) 4061 (40) 4214 (41) 4183 (42) 4237 (41) 4138 (39) 3904 (37) 4107 (41)
ICU length of stay, day (median, IQR) 2 (2–4)        
ICU mortality, n (%) 2,755 (4) 426 (4) 447 (4) 377 (4) 353 (3) 419 (4) 360 (3) 373 (4)
In-hospital mortality, n (%) 4,896 (7) 730 (7) 816 (8) 646 (6) 615 (6) 752 (7) 664 (6) 673 (7)
  1. BMI body mass index, SOFA score the sequential organ failure assessment score, APACHE III score the acute physiology and chronic health evaluation III score
  2. Demographic and baseline characteristics of all patients admitted to all ICUs from January 1st, 2007 to December 31st, 2013