Table 2.
Participant Characteristics.
| Characteristic | TET | LAP | P Value |
|---|---|---|---|
| Men/Women, n/n | 48/41 | 47/40 | 0.99 |
| Age, yr (mean ± SD) | 66 ± 10 | 66 ±10 | 0.96 |
| Mass, kg (mean ± SD) | 84.4 ± 23.9 | 82.2 ± 20.3 | 0.50 |
| Pulmonary Function (mean ± SD) | |||
| FEV1 (1) | 1.48 ± 0.63 | 1.46 ± 0.69 | 0.79 |
| FEV1 (% of predicted) | 53.0 ± 18.5 | 50.5 ± 20.2 | 0.41 |
| FEV1/FVC (%) | 52.3 ± 12.2 | 51.1 ± 13.6 | 0.55 |
| RV/TLC (%) | 56.6 ± 13.0 | 58.7 ± 11.6 | 0.40 |
| Disease Severity (n with) | |||
| Mild | 5 | 7 | 0.56 |
| Moderate | 44 | 34 | 0.26 |
| Severe | 30 | 33 | 0.71 |
| Very Severe | 10 | 13 | 0.53 |
| Smoking Status | |||
| Current, n | 26 | 29 | 0.51 |
| Previous, n | 59 | 53 | |
| Pack Years (mean ± SD) | 24 ± 12 | 27 ± 17 | 0.23 |
| Co-Morbid Illnesses (n with) | |||
| Arthritis | 49 | 35 | 0.06 |
| Hypertension | 47 | 39 | 0.30 |
| Circulatory Problems | 17 | 16 | 0.90 |
| Heart Disease | 39 | 40 | 0.77 |
| Diabetes | 8 | 14 | 0.15 |
| Cancer | 20 | 20 | 0.93 |
| Co-Morbid (n with) | |||
| 0 | 10 | 18 | 0.29 |
| 1 | 18 | 16 | |
| >2 | 30 | 27 | |
The p values for comparing the two treatment arms were obtained using the Chi-square test for categorical variables and the two sample t-test for continuous variables. FEV1 is the forced expiratory volume in one second. FVC is the forced vital capacity. RV is the residual volume. TLC is the total lung capacity.