Validation of the King’s Brief Interstitial Lung Disease questionnaire in Idiopathic Pulmonary Fibrosis

BMC Pulmonary Medicine

Table 1 Demographics of the participants at inclusion (n = 150)

Characteristics	Value
Male (%)	122 (81.3%)
Age, years ± SD	72.9 ± 6.2
Time since diagnosis, years (range)	0.5 (0.0–9.3)
Smoking status
Current (%)	9 (6.0%)
Former (%)	101 (67.3%)
Never (%)	40 (26.6%)
Long-term oxygen therapy (%)	19 (12.7%)
Antifibrotic treatment	85 (56.7%)
FVC, % predicted ± SD	87.2 ± 23.1
DLCO, % predicted ± SD	48.4 ± 14.1
6MWD, m ± SD	450.3 ± 112.5
K-BILD total ± SD	58.3 ± 12.4
SGRQ-I total ± SD	42.9 ± 22.3
SOBQ ± SD	34.6 ± 25.3
SF-36 PCS ± SD	42.5 ± 8.7
SF-36 MCS ± SD	50.1 ± 10.5

Values are presented as n (%), mean ± standard deviation (SD) or median with range [16]. FVC Forced vital capacity, DLCO Diffusion capacity of the lung for carbon monoxide, 6MWD Distance walked during the 6-min walk test, K-BILD King’s Brief Interstitial Lung Disease questionnaire, SGRQ-I IPF-specific version of St. George’s Respiratory Questionnaire, SOBQ University of California, San Diego Shortness of Breath Questionnaire, SF-36 Short Form-36, PCS Physical Component Score, MCS Mental Component Score

ISSN: 1471-2466