Table 1.

Baseline demographic data.

Characteristics		US study participants (N=27)	Ireland study participants (N=13)
Gender, n (%)
	Male	12 (44)	7 (54)
	Female	13 (48)	6 (46)
	Not stated	2 (7)	0 (0)
Ethnicity, n (%)
	White	24 (89)	13 (100)
	Other	1 (4)	0 (0)
	Not stated	2 (7)	0 (0)
Age (years), mean (range)		62 (31-79)	66 (37-81)
FVCa,b (L), mean (range)		2.28c (0.6-4.72)	2.49d (0.7- 3.9)
FVCb (% predicted), mean (range)		62 (36-108)	64 (33-91)
Diagnosis confirmed by clinical experte, n (%)
	Yes	25 (93)	0 (0)
	No	0 (0)	0 (0)
	Not stated	2 (7)	13 (100)
On antifibrotic therapye, n (%)
	Yes	23 (85)	4 (31)
	No	0 (0)	0 (0)
	Not stated	4 (15)	9 (61)

^aFVC: forced vital capacity.

^bHome-based spirometry data.

^cMean of first 7 days in 23 US participants. A total of 24 US participants provided home-based spirometry data; however, 1 participant did not provide spirometry data in the first 7 days.

^dMean of first 7 days in 12 Irish participants who provided home-based spirometry data.

^eSelf-reported data.