Modified high-flow nasal cannula oxygen therapy versus conventional oxygen therapy in patients undergoing bronchoscopy: a randomized clinical trial

Table 4 Risk factors associated with hypoxemia during bronchoscopy in modified high-flow nasal cannula oxygen group

Variable	β coefficient	Standard error	Odds ratios (95% CI)	P
Univariate logistic regression
Baseline PaO₂	− 0.027	0.012	0.973 (0.950–0.996)	0.024
Baseline SaO₂	− 0.199	0.069	0.820 (0.716–0.939)	0.004
Baseline FVC	− 1.027	0.456	0.356 (0.147–0.875)	0.024
Volume of fluid instilled	0.011	0.004	1.012 (1.003–1.020)	0.005
Hemorrhage	0.715	0.337	2.044 (1.055–3.959)	0.034
Multivariate logistic regression
Baseline FVC	− 1.286	0.613	0.276 (0.083–0.919)	0.036
Volume of fluid instilled	0.034	0.016	1.034 (1.002–1.067)	0.036

PaO₂, partial pressure of arterial oxygen; SaO₂, arterial oxygen saturation; FVC, forced vital capacity

ISSN: 1471-2466