Demographic data for all subjects used in this study
| Control (tissue) | IPF (tissue) | IPF (blood) | |||
| Group 1 | Group 2 | Group 1 | Group 2 | – | |
| N | 51 | 53 | 79 | 79 | 57 |
| Age (years) | 64.5±10.5 | 64.0±11.4 | 65.1±8.0 | 63.4±8.6 | 67.4±8.0 |
| Sex (%) | |||||
| Female | 29 (57) | 26 (49) | 23 (29) | 26 (33) | 19 (33) |
| Male | 22 (43) | 27 (51) | 56 (71) | 53 (67) | 38 (67) |
| Smoking status (%) | |||||
| Never | 12 (24) | 17 (32) | 26 (33) | 32 (41) | – |
| Former | 32 (63) | 31 (58) | 49 (62) | 45 (57) | – |
| Current | 2 (4) | 0 (0) | 0 (0) | 2 (3) | – |
| DLCO (% predicted) | 80.8±14.4 | 87.4±18.6 | 48.5±16.6 | 46.9±19.0 | 39.2±14.1 |
| FEV1 (% predicted) | 92.6±10.6 | 97.7±14.1 | 70.8±17.9 | 71.2±18.4 | – |
| FVC (% predicted) | 92.6±11.4 | 96.2±14.9 | 63.5±16.5 | 64.8±17.1 | 72.2±20.3 |
Data are presented as mean±SD.
FEV1, forced expiratory volume in one second; FVC, forced vital capacity; IPF, idiopathic pulmonary fibrosis.