Table 3 Univariable and multivariable linear regression analysis of possible predictive characteristics

Age

57.2 (16.6)

19-87

0.004

0.001–0.007

0.004

0.002

0.000–0.005

0.072

Surgical Intervention performed

167 (96)

0.594

0.351–0.837

<0.001

0.466

0.288–0.643

<0.001

Gender (males)

99 (56.9)

-0.015

–0.118–0.870

0.767

Number of co-morbidities

1.47 (1.68)

0-9

0.000

–0.031–0.030

0.978

–0.038

–0.064–0.012

0.005

Number of complications

0.21 (0.60)

0-4

0.221

0.144–0.299

<0.001

0.072

0.005–0.139

0.036

ASA-class

1

41 (26.8)

RC

2

89 (58.17)

0.168,

0.057– 0.279

0.003

RC

3

23 (15.03)

0.234,

0.081–0.387

0.003

0.067

–0.071–0.204

0.339

BMI at admission

26.43 (5.37)

17.2-53.6

–0.006

–0.015–0.003

0.189

Nutritional status

2.28 (5.78)

0-50

0.018

0.010–0.026

<0.001

Delirium during hospitalisation

3 (0.7)

Pressure ulcer acquired during hospitalisation

grade 1

0

grade 2

1 (0.6)

grade 3

1 (0.6)

grade 4

0

Isolation

barrier

2 (1.15)

strict isolation

0

Survival

174 (100)

Number of medications during hospitalisation

8.51 (5.07)

0-26

0.031

0.022–0.040

<0.001

0.013

0.004–0.023

0.007

Admission type

–0.210

–0.360–0.061

0.006

home

152 (87.36)

emergency

22 (12.64)

Discharge type

home

163 (93.7)

other

11 (6.32)

Length of Stay

8.11 (6.85)

1-45

0.034

0.028–0.039

<0.001

0.032

0.027–0.037

<0.001

Surgical specialty

TRAUMA

4 (2.3)

RC

URO

21 (12.07)

0.776

0.511–1.042

<0.001

0.760

0.500–1.021

<0.001

ORTHO

49 (28.16)

0.758

0.505–1.012

<0.001

0.706

0.461–0.950

<0.001

ABDO

55 (31.06)

1.152

0.900–1.405

<0.001

1.005

0.755–1.255

<0.001

SHORT

14 (8.05)

0.644

0.368–0.920

<0.001

0.623

0.350–0.896

<0.001

PLAST

12 (6.9)

0.622

0.381–0.943

<0.001

0.610

0.339–0.882

<0.001

VASC

11 (6.32)

0.786

0.502–1.071

<0.001

0.738

0.456–1.020

<0.001

ORAL

8 (4.6)

0.679

0.380–0.977

<0.001

0.664

0.383–0.946

<0.001