. 2021 Dec 31;38(4):e2021042. doi: 10.36141/svdld.v38i4.11465

Table 2.

Study patients meeting the criteria for PF-ILD

	Relative decline in %FVC	≥10%	5% to <10%	<5%	Lack of data for comparison
	Relative decline in %FVC	n = 12	n = 1	n = 5	n = 14
Increased extent of fibrosis on HRCT	Yes	11 (92%)	1 (100%)	2 (40%)	5 (36%)
Increased extent of fibrosis on HRCT	No	1 (8%)	0 (0%)	3 (60%)	9 (64%)
Worsening respiratory symptoms	Yes	10 (83%)	1 (100%)	2 (40%)	5 (36%)
Worsening respiratory symptoms	No	2 (17%)	0 (0%)	3 (60%)	9 (64%)
Met the criteria for PF-ILD		12 (100%)	1 (100%)	2 (40%)	3 (21%)

PF-ILD, progressive fibrosing interstitial lung disease; FVC, forced vital capacity; HRCT, high-resolution computed tomography.