Table 1 Patient characteristics. Socio-demographic and encounter parameters for all included patients and divided by positive and negative outcome for UMCdb. See online supplement table S1 for other measurements

Demographics

Age, years, mean (SD)^#

63.1 (14.5)

66.8 (13.4)

62.02 (14.6)

0.89

Female, n (%)

2,960 (32)

687 (33)

2,273 (32)

0.77

Encounter variables*

Length of stay, hour, mean (SD)

71 (175.5)

133 (281.2)

52.8 (123.3)

< 0.05

In hospital death, n (%)

1,938 (21)

603 (29)

1,335 (18)

0.98

BT Time since admission, hours, mean (IQR)

BT

4.9 (2.5–9.5)

4.9 (2.5–9.5)

N/A

N/A

Surgery type, n (%)

0.69

Cardiothoracic surgery

5,382 (59)

1,441 (70)

3,941 (55)

0.65

Neurosurgery

962 (10)

44 (2)

918 (13)

0.4

Gastrointestinal surgery

786 (8)

152 (7)

634 (9)

0.08

Vascular surgery

753 (8)

207 (10)

546 (7)

0.8

Other surgery

1,235 (13)

220 (10)

1,015 (14)

1

Measurements, mean (SD)

Height, mean (SD)^#

174.9 (9.7)

173.8 (9.5)

175.2 (9.7)

0.08

Weight, mean (SD)^#

81.5 (15)

79 (13.7)

82 (15)

0.25

Mechanically

ventilated, n (%)

7,021 (77)

1,960 (95)

5,061 (71)

0.37

Heart rate, bpm

84 (73.0–97.0)

86 (75–101)

82.0 (72.0–94.0)

< 0.05

SBP, mmHg

124 (108.0–142.0)

111 (98.0–127.0)

124 (108.0–143.0)

< 0.05

Base Excess, mmol/l

2.2 (0.8–4.4)

2.0 (0.6–4.1)

2.0 (0.8–3.8)

0.40

Ht, l/l

0.3 (0.3–0.4)

0.3 (0.3–0.3)

0.3 (0.3–0.4)

< 0.05

Hb, mmol/l

6.4 (5.7–7.3)

6.1 (5.4–6.9)

6.8 (6.0–7.7)

< 0.05

Platelets, ×10⁹/l

184 (130.0–261.0)

162 (115.0–230.0)

194 (143.0–265.0)

< 0.05

RBC, ×10¹²/l

3.6 (3.2–4.1)

3.3 (2.9–3.9)

3.8 (3.4–4.3)

< 0.05