Table 1.
Demographics and Pulmonary Function Data on Participants Supplying Lung Samples
| Control | COPD | |
|---|---|---|
| Lung specimen used, right/left | 3/0 | 5/6 |
| No. of samples | 22 | 33 |
| No. of airways segmented | 45 | 44 |
| Age, yr* | 51.33 ± 19.40 | 62.55 ± 3.33 |
| Sex, F/M | 1/2 | 5/6 |
| Body height, cm | 176.55 ± 1.77 | 171.67 ± 11.52 |
| Weight, kg | 110.40 ± 35.01 | 72.91 ± 20.81 |
| Race | 2 white; 1 African American | 9 white; 1 African American; 1 Native American |
| Smoking history, pack-years | 0 | 50.57 ± 14.14 |
| FEV1, L | NA | 0.62 ± 0.15 |
| FEV1% predicted | NA | 22.00 ± 4.31 |
| FVC, L | NA | 2.17 ± 0.59 |
| FVC% predicted | NA | 52.55 ± 7.42 |
| FEV1/FVC | NA | 0.29 ± 0.06 |
| FEF25–75 | NA | 0.22 ± 0.04 |
Definition of abbreviations: COPD = chronic obstructive pulmonary disease; FEF25–75 = forced expiratory flow, midexpiratory phase; NA = not applicable.
Data are mean ± SD, unless specified.
*
Indicates significance at P < 0.01.