Table 3.

Characteristics of the response to exposure removal in the subset of patients with 10% improvement in FVC with exposure removal

	Nonfibrotic (N = 17 with FVC improvement by 10% with exposure removal)	Fibrotic (N = 23 with FVC improvement by 10% with exposure removal)
DLCO improved by 15% within 3–6 months of exposure removal	12 (70.6)	18 (78.2)
% change in DLCO with exposure removal, Median (IQR)	12 (7,20.5)	16 (9.25,23)
Symptom improvement documented after exposure removal	14 (82.3)	19 (82.6)
CT available after exposure removal	14 (82.3)	19 (82.6)
CT improvement after exposure removal Improvement in ground glass Resolution of ground glass Improvement in centrilobular nodules Resolution of centrilobular nodules Improvement in fibrosis	13 (76.4) 6 (35.3) 5 (29.4) 2 (11.8) 0 (0) N/A	7 (30.4) 6 (26.1) 0 (0) 1 (4.3) 0 (0) 0 (0)
FVC available > 1 year post exposure removal	12 (70.6)	22 (95.7)
FVC improvement maintained at 1 year post exposure removal	11 (64.7)	17 (73.9)