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Table 1 Baseline characteristics of the study population

From: The use of a novel cleaning closed suction system reduces the volume of secretions within the endotracheal tube as assessed by micro-computed tomography: a randomized clinical trial

 

All patients, n = 40

Control group, n = 20

Treatment group, n = 20

P value

Age, years

69 (51–76)

67 (53–75)

73 (49–77)

0.892

Female sex, n (%)

15 (38)

7 (35)

8 (40)

1.0

BMI

26 (24–28)

27 (24–29)

24 (23–26)

0.100

SAPS2

51 ± 16

47 ± 16

56 ± 14

0.055

PaO2/FiO a2

228 ± 94

214 ± 90

241 ± 99

0.375

PEEPa, cmH2O

10 (8–10)

10 (8–12)

9 (8–10)

0.104

Reason for admission, n (%)

   

0.112

 Medical

28 (70)

11 (55)

17 (85)

 

 Elective surgery

5 (12)

4 (20)

1 (5)

 

 Emergency surgery

7 (18)

5 (25)

2 (10)

 

ETT size, mm ID

7.5 (7.5–7.5)

7.5 (7.5–8.0)

7.5 (7.5–7.5)

0.113

Suspect of pneumonia, n (%)

13 (32)

6 (30)

7 (35)

1.0

ARDS diagnosis, n (%)

6 (15)

5 (25)

1 (5)

0.182

  1. BMI body mass index, SAPS2 Simplified acute physiology score II, PEEP positive end-expiratory pressure, ETT endotracheal tube, ID internal diameter, ARDS acute respiratory distress syndrome
  2. aMeasured at intubation