Table 1.
Demographic information and PFT values for the 6 subjects
| Subject | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Sex | F | F | M | F | M | M |
| Age, yr | 24 | 44 | 23 | 39 | 53 | 58 |
| BMI, kg/m2 | 25 | 26 | 26 | 24 | 30 | 32 |
| FEV1, liters | 3.3 (99%) | 2.6 (95%) | 3.7 (91%) | 3.0 (97%) | 3.5 (87%) | 3.4 (83%) |
| FVC, liters | 4.1 (105%) | 3.4 (101%) | 4.6 (95%) | 3.6 (97%) | 4.6 (86%) | 4.4 (82%) |
| FEV1/FVC | 0.806 | 0.762 | 0.813 | 0.818 | 0.774 | 0.768 |
| TLC, liters | 4.8 (93%) | 4.5 (99%) | 5.4 (87%) | 5.2 (104%) | 6.6 (88%) | 7.2 (93%) |
| FRC, liters | 2.1 (76%) | 2.2 (85%) | 1.9 (71%) | 2.8 (102%) | 2.9 (79%) | 2.9 (78%) |
| RV, liters | 1.0 (73%) | 1.1 (73%) | 0.9 (69%) | 1.5 (97%) | 2.1 (90%) | 2.3 (93%) |
| RV/TLC | 0.209 | 0.249 | 0.157 | 0.296 | 0.315 | 0.318 |
All subjects are white non-Hispanic except subject 4 that is white Hispanic. Values in parentheses are % predicted normal values. BMI, body mass index; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; TLC, total lung capacity; FRC, functional residual capacity; RV, residual volume.