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ROC curves for objective cough measures. EPPF = expulsive phase peak flow; EPRT = expulsive phase rise time; VA = volume acceleration (or EPPF/EPRT); SPL = sound pressure level; T+ = test positive; Sens = sensitivity; Spec = specificity. Solid (dotted) curves are ROC curves unadjusted (adjusted) for CNSS score. Aspiration is defined as a PASS ≥ 5.
