True positive + True negative (confirmed benign with follow-up of at least 1yr without progression) / Total procedures
Pathologic results of a malignant or benign specific diagnosis based on the samples collected via index ENB procedure are categorized as true positives or true negatives.
For pathologic results of a benign non-specific diagnosis and non-diagnostic results, follow-up data would be used to determine whether the 12-month status corroborates the benign results. Based on definition scenarios, these results will be determined as true negatives or false negatives. Diagnostic yields based on different scenarios will be reported.