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Table 1 Patient demographic and clinical characteristics

From: Lung ultrasound is non-inferior to bronchoscopy for confirmation of double-lumen endotracheal tube positioning: a randomized controlled noninferiority study

Characteristics

Group US

(n = 97)

Group FOB

(n = 98)

p-value

Baseline characteristics

 Age (yrs)

60.4 ± 15.6

60.6 ± 12.8

0.93

 Male gender

38 (39.2%)

48 (49.0%)

0.19

 Height (cm)

158 ± 8.8

160 ± 7.8

0.16

 Weight (kg)

61.4 ± 10.9

62.1 ± 12.7

0.65

 Body mass index (kg/m2)

24.4 ± 4.4

24.0 ± 4.3

0.58

 ASA physical status

  

0.12

  1

5 (5.2%)

11 (11.2%)

 

  2

59 (60.8%)

64 (65.3%)

 

  3

33 (34.0%)

23 (23.5%)

 

Primary diagnosis

  

0.64

 Lung nodule/mass

59 (60.8%)

65 (66.3%)

 

 Lung cancer

24 (24.7%)

25 (25.5%)

 

 Lung bleb

1 (1.0%)

0 (0.0%)

 

 Pneumothorax (minimal residual air)

2 (2.1%)

1 (1.0%)

 

 Others

11 (11.3%)

7 (7.1%)

 

Comorbidity

 Diabetes mellitus

18 (18.6%)

13 (13.3%)

0.34

 Hypertension

54 (55.7%)

38 (38.8%)

0.02

 Dyslipidemia

19 (19.6%)

18 (18.4%)

0.86

 Other

24 (24.7%)

14 (14.3%)

 

Type of surgery

  

0.60

 Video-assisted thoracoscopic surgery

73 (75.3%)

74 (75.5%)

 

 Thoracotomy

24 (24.7%)

23(23.5%)

 

 Median sternotomy

0 (0.0%)

1 (1.0%)

 

Size of double lumen tube

  

0.38

 32

4 (4.1%)

3 (3.1%)

 

 35

56 (57.7%)

48 (49.0%)

 

 37

37 (38.1%)

47 (48.0%)

 
  1. Data presented as number and percentage or mean ± standard deviation
  2. A p-value < 0.05 indicates statistical significance
  3. Abbreviations: US ultrasonography, FOB fiberoptic bronchoscopy, ASA American Society of Anesthesiologists