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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Lancet Respir Med. 2014 Nov 24;3(1):42–52. doi: 10.1016/S2213-2600(14)70239-5

Table 1. Baseline characteristics and Outcome measures.

Continuous variables are presented as Median [InterQuartile Range]; Binary or categorical variables as Count (%).

Overall population (n=24,508) Dead at Hospital Discharge (n=3,002) Alive at Hospital Discharge (n=21,506)
Age 65 [51–77] 74 [59–83] 64 [50–76]
Gender (female) 13,838 (56.5%) 1,607 (53.5%) 12231 (56.9%)
First SAPS 13 [10–17] 18 [14–22] 13 [9–17]
First SAPS II 38 [27–51] 53 [43–64] 36 [27–49]
First SOFA 5 [2–8] 8 [5–12] 5 [2–8]
Origin
 Medical 2,453 (10%) 240 (8%) 2,213 (10.3%)
 Trauma 7,703 (31.4%) 1,055 (35.1%) 6,648 (30.9%)
 Emergency Surgery 10,803 (44.1%) 1,583 (52.7%) 9,220 (42.9%)
 Scheduled Surgery 3,549 (14.5%) 124 (4.1%) 3,425 (15.9%)
Site
 MICU 7,488 (30.6%) 1,265 (42.1%) 6,223 (28.9%)
 MSICU 2,686 (11%) 347 (11.6%) 2,339 (10.9%)
 CCU 5,285 (21.6%) 633 (21.1%) 4,652 (21.6%)
 CSRU 8,100 (33.1%) 664 (22.1%) 7,436 (34.6%)
 TSICU 949 (3.9%) 93 (3.1%) 856 (4%)
HR (bpm) 87 [75–100] 92 [78–109] 86 [75–99]
MAP (mmHg) 81 [70–94] 78 [65–94] 82 [71–94]
RR (cpm) 14 [12–20] 18 [14–23] 14 [12–18]
Na (mmol/l) 139 [136–141] 138 [135–141] 139 [136–141]
K (mmol/l) 4.2 [3.8–4.6] 4.2 [3.8–4.8] 4.2 [3.8–4.6]
HCO3 (mmol/l) 26 [22–28] 24 [20–28] 26 [23–28]
WBC (103/mm3) 10.3 [7.5–14.4] 11.6 [7.9–16.9] 10.2 [7.4–14.1]
P/F ratio 281 [130–447] 174 [90–352] 312 [145–461]
Ht (%) 34.7 [30.4–39] 33.8 [29.8–38] 34.8 [30.5–39.1]
Urea (mmol/l) 20 [14–31] 28 [18–46] 19 [13–29]
Bilirubine (mg/dl) 0.6 [0.4–1] 0.7 [0.4–1.5] 0.6 [0.4–0.9]
Hospital LOS (days) 8 [4–14] 9 [4–17] 8 [4–14]
ICU death (%) 1,978 (8.1%) 1,978 (65.9% -
Hospital death (%) 3,002 (12.2%) - -