Diagnostic Completeness

All primary outcome measures including DC80 trended in the expected direction post-intervention but did not reach significance, consistent with a possible Type II error in an underpowered study. SP80, which measures systematic inspection order, is a strong predictor of DC80, reinforcing the importance of teaching structured technique from the beginning of the learning curve. Even experienced bronchoscopists explicitly instructed to visit all segments achieved only 73% DC80 on average, confirming that segment omission occurs even among skilled practitioners. Diagnostic completeness is the most frequently used performance metric in the bronchoscopy training literature, reflecting consensus that a diagnostic bronchoscopy should begin with a full, systematic inspection of the bronchial tree.