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Table 1 The demographic information and medical history of the patients

From: Incidence of oxygen desaturation using a high-flow nasal cannula versus a facemask during flexible bronchoscopy in patients at risk of hypoxemia: a randomised controlled trial

 

HFNC Group

(n = 87)

Facemask Group

(n = 89)

P value

Age (yrs)

64.2 ± 9.3

63.6 ± 7.7

0.661

Sex

Male, no. (%)

Female, no. (%)

74 (85.1)

13 (14.9)

73 (82.0)

16 (18.0)

0.587

Weight (kg)

64.0 ± 9.9

65. 6 ± 9.1

0.290

BMI (kg/m2)

23.6 ± 2.8

23.8 ± 2.9

0.508

ASA physical status a

I/II, no. (%)

III, no. (%)

84 (96.6)

3 (3.4)

88 (98.9)

1 (1.1)

0.597

Smoking Status

History (pack years)

20 (0 to 40)

24 (0 to 40)

0.759

Current Smoker, no. (%)

Past Smoker, no. (%)

Never Smoked, no. (%)

20 (23.0)

39 (44.8)

28 (32.2)

30 (33.7)

29 (32.6)

30 (33.7)

0.172

Comorbidity

Hypertension, no. (%)

Diabetes, no. (%)

Heart disease, no. (%)

Asthma, no. (%)

COPD, no. (%)

Lung cancer, no. (%)

Oesophagus Cancer, no. (%)

32 (36.8)

5 (5.7)

2 (2.3)

0 (0)

2 (2.3)

17 (19.5)

4 (4.6)

47 (52.8)

2 (2.2)

3 (3.3)

0 (0)

1 (1.1)

15 (16.9)

0 (0)

0.033

0.422

1.000

NS

0.984

0.644

0.123

STOP-Bang Questionnaire

Total scores

3 (3 to 4)

3 (3 to 4)

0.282

Snoring, no. (%)

Neck circumference > 40 cm, no. (%)

68 (78.2)

12 (13.8)

71 (79.8)

12 (13.5)

0.793

0.952

Modified Mallampati score b, I/II/III/IV

44//34/9/0

46/31/11/1

0.855

Mouth opening c, 1/2/3

0/1/86

0/0/89

0.494

Thyromental Distance d, I/II/III

77/8/2

77/7/5

0.599

  1. Data are presented as numbers (%), means ± standard deviations or medians (interquartile ranges)
  2. Abbreviations: BMI: body mass index; COPD: chronic obstructive pulmonary disease; OSA: obstructive sleep apnoea
  3. a ASA physical status: I: normal healthy patient, II: patient with mild systemic disease that does not limit physical activity, III: patient with severe systemic disease
  4. b Modified Mallampati score: Class I: the entire palatal arch is visible down to the bases of the pillars, Class II: the upper part of the faucial pillars and most of the uvula are visible, Class III: only the soft and hard palates are visible, Class IV: only the hard palate is visible
  5. c Mouth opening:1, one finger; 2, two fingers; 3, three fingers
  6. d Thyromental Distance: I, > 6.5 cm; II, 6-6.5 cm; III, < 6 cm