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Table 2 Demographic data for the overall study population and in the obese and non-obese subgroups

From: Ultrasound-guided percutaneous tracheostomy in critically ill obese patients

 

Global population

(n = 50)

Obese

(n = 26)

Non-obese

(n = 24)

P value

Age, years

62 (46-72)

64 (50-74)

58 (46-64)

0.62

Male gender

36 (72%)

19 (70%)

17 (74%)

0.4

Body mass index, kg/m2

31 (25-35)

34 (32-38)

25 (24-28)

< 0.001

SAPS II

41 (31-57)

40 (25-47)

47 (36-58)

0.06

Diagnosis on admission

   

0.9

   Cardiogenic shock

1 (2%)

1 (4%)

0

 

   Acute respiratory distress syndrome

15 (30%)

10 (38%)

5 (20%)

 

   COPD failure

4 (8%)

2 (8%)

2 (8%)

 

   Neurological problem

3 (6%)

2 (8%)

1 (4%)

 

   Cardiac surgery

14 (28%)

8 (30%)

6 (25%)

 

   Vascular surgery

2 (4%)

1 (4%)

1 (4%)

 

   Thoracic surgery

3 (6%)

0

3 (13%)

 

   Visceral surgery

5 (10%)

2 (8%)

3 (13%)

 

   Polytrauma

3 (6%)

0

3 (13%)

 

MV before tracheostomy, days

22 (16-29)

21 (16-29)

22 (19-29)

0.24

Time to decannulation, days

23 (15-32)

26 (13-34)

21 (16-31)

0.66

  1. Values are expressed as the median (25th-75th percentiles) or as number (percentage). COPD, chronic obstructive pulmonary disease; MV, mechanical ventilation; SAPS II, Simplified Acute Physiology Score II.