Quantification and Evaluation of the Role of Antielastin Autoantibodies in the Emphysematous Lung

Table 2

The severity of disease in COPD, Z-A1ATD, and CF based on the predicted percentage of FEV1.

	COPD	Z-A1ATD	CF
FEV1 (>80% predicted)	14%	40%	6%
FEV1 (50–80% predicted)	21%	60%	27%
FEV1 (30–50% predicted)	36%	—	27%
FEV1 (<30% predicted)	29%	—	40%