Skip to main content

Table 1 Baseline characteristics

From: Validation and minimum important difference of the UCSD Shortness of Breath Questionnaire in fibrotic interstitial lung disease

Variable Value
Total sample size 1933
 IPF 539 (28%)
 CTD-ILD 701 (36%)
 Unclassifiable ILD 344 (18%)
 HP 151 (8%)
 Other ILD 198 (10%)
Age, years 62 ± 13
Male sex 1056 (55%)
Ever-smoker 1214 (63%)
Smoking pack-years (IQR) 21 (8–37)
FVC, %-predicted 75 ± 20
DLCO, %-predicted 58 ± 20
6MWD, meters 433 ± 129
UCSDSOBQ total score 37 ± 27
SGRQ total score 41 ± 20
EQ-5D-5L 0.79 ± 0.19
EQ-VAS 69 ± 19
  1. Data shown are number (%), mean ± standard deviation, or median (interquartile range)
  2. 6MWD 6-min walk distance, CTD-ILD connective tissue disease-associated ILD, DLCO diffusing capacity of the lung for carbon monoxide, EQ-5D-5L European Quality of Life 5 Dimensions 5 Levels questionnaire, EQ-VAS European Quality of Life visual analogue scale, FVC forced vital capacity, HP hypersensitivity pneumonitis, ILD interstitial lung disease, IPF idiopathic pulmonary fibrosis, IQR interquartile range, SD standard deviation, SGRQ St. George’s Respiratory Questionnaire, UCSDSOBQ University of California, San Diego Shortness of Breath Questionnaire