From: Utility of autoimmune serology testing in the assessment of uncharacterized interstitial lung disease: a large retrospective cohort review
All patients with serology testing ordered
Positive Serology
Negative Serology
N (eventual number of final CTD-ILD diagnoses)
Positive ROS
72 (38)
56 (1)
Negative ROS
141 (3)
336 (0)