High frequency jet ventilation through mask contributes to oxygen therapy among patients undergoing bronchoscopic intervention under deep sedation

Table 6 Multiple linear regression analysis of blood gas PaCO₂ related factors

Variables	Regression coefficient	95% Confidence interval	P Value
Body mass index	0.3	(−0.4, 1.0)	0.425
Procedure duration	0.1	(−0.1, 0.3)	0.438
Group COT/NFJV/HFJV	0.2	(−2.6, 2.9)	0.905
Lesion location	−0.4	(−2.5, 1.7)	0.714
Degree of stenosis	−2.0	(−4.9, 1.0)	0.194

The above indexes are not independent influencing factors of blood gas PaCO₂
COT conventional oxygen therapy; NFJV normal frequency jet ventilation; HFJV high frequency jet ventilation
Lesions location: 1) the upper and middle part of the main airway, 2) the middle and lower part of the main airway, 3) the left or right main bronchial and 4) in the distal bronchial. Degree of stenosis: 1 for 0–59%, 2 for 60–89%, and 3 for above 90%

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