Lung function characteristics based on clinical characteristics.

All data are expressed as No. (%) unless otherwise stated.* Subjects with missing DLCO values were not included in the final statistical analyses.P values were derived from the chi-square tests between the two groups (for diffusing capacity) or among the three groups (for spirometry).** In our study, bacterial colonization (referred to as infection specifically for P. aeruginosa) was defined as sputum culture positive of an identical PPM for at least 2 occasions within 1 year, at least 3 months apart. Bacterial isolation denoted sputum culture positive of PPMs at baseline.Lung function characteristics based on clinical characteristics.