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Table 3 Parameters and procedures during bronchoscopy

From: Association between oxygen saturation level during bronchoscopy and post-bronchoscopy adverse events: a retrospective cohort study

 

Total population

Propensity score-matched population

High oxygen saturation group (n = 458)

Low oxygen saturation group (n = 111)

P-value

High oxygen saturation group (n = 222)

Low oxygen saturation group (n = 111)

P-value

Oxygen saturation during bronchoscopy

 Initial SpO2, mean (± SD)

98.9 (1.5)

96.9 (2.9)

 < 0.001

98.8 (1.6)

96.9 (2.9)

 < 0.001

 Highest SpO2, mean (± SD)

99.1 (1.3)

94.9 (2.4)

 < 0.001

99.0 (1.4)

94.9 (2.4)

 < 0.001

 Lowest SpO2, mean (± SD)

95.4 (5.2)

87.0 (5.8)

 < 0.001

94.8 (5.8)

87.0 (5.8)

 < 0.001

 Desaturation event, n (%)

87 (19.0)

82 (73.9)

 < 0.001

46 (20.7)

82 (73.9)

 < 0.001

 Desaturation duration > 1 min, n, (%)

0 (0.0)

12 (10.8)

 < 0.001

0 (0.0)

12 (10.8)

 < 0.001

Duration of bronchoscopy in min, median (IQR)

6.0 (5.0–7.0)

6.0 (5.0–12.0)

0.007

6.0 (5.0–8.0)

6.0 (5.0–12.0)

0.137

Duration of desaturation in min, median (IQR)

0 (0–0)

1.0 (0–1.0)

 < 0.001

0 (0–0)

1.0 (0–1.0))

 < 0.001

Sedation, n (%)

128 (27.9)

49 (44.1)

0.001

97 (43.7)

49 (44.1)

1.000

Procedure type, n (%)

      

 Bronchial washing

306 (66.8)

65 (58.6)

0.127

142 (64.0)

65 (58.6)

0.402

 Toileting

109 (23.8)

24 (21.6)

0.718

52 (23.4)

24 (21.6)

0.817

 Bronchoalveolar lavage

29 (6.3)

14 (12.6)

0.041

15 (6.8)

14 (12.6)

0.114

 Biopsy

46 (10.0)

10 (9.0)

0.880

21 (9.5)

10 (9.0)

1.000

 EBUS-TBNA

37 (8.1)

18 (16.2)

0.015

24 (10.8)

18 (16.2)

0.220

 TBLB

1 (0.2)

1 (0.9)

0.844

0 (0.0)

1 (0.9)

0.723

 Foreign body removal

15 (3.3)

2 (1.8)

0.612

8 (3.6)

2 (1.8)

0.570

Bronchoscopist

  

0.311

  

0.371

 Attending physician alone

221 (48.3)

47 (42.3)

 

107 (48.2)

47 (42.3)

 

 Fellow physician, supervised by attending physician

237 (51.7)

64 (57.7)

 

115 (51.8)

64 (57.7)

 
  1. Data are expressed as mean (± standard deviation) or median (interquartile range) and number (percentage)
  2. EBUS-TBNA endobronchial ultrasound-guided transbronchial needle aspiration; TBLB transbronchial lung biopsy; SD standard deviation; IQR interquartile range
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Respiratory Research

ISSN: 1465-993X

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