Fig. 2

Association between low oxygen saturation during bronchoscopy and post-bronchoscopy respiratory adverse events in the different subgroups. COPD chronic obstructive pulmonary disease. The risk for post-bronchoscopy respiratory adverse events in the low oxygen saturation group was elevated in subgroups of patients older than 65 years, women, current smokers, diagnosed with COPD, and who presented with acute decompensated heart failure before FB