Table 1.
Comparison of demographic parameters, pulmonary function results and Quality of Life Score between two COPD groups
| Variables | COPD with normal BMD (n = 36) | COPD with low BMD (n = 44) | p-value |
|---|---|---|---|
| Age(yr) | 65.5 ± 5.1 | 67.8 ± 5.2 | 0.049 |
| BMI(kg/m2) | 26.1 ± 3.6 | 23.5 ± 2.9 | < 0.001 |
| Smoking index(pack-yr) | 28.1 ± 26.0 | 26.7 ± 21.6 | 0.79 |
| CAT score | 15.8 ± 9.6 | 21.0 ± 8.5 | 0.01 |
| BODE index | 3.3 ± 1.1 | 4.1 ± 1.2 | 0.26 |
| FEV1/FVC(%) | 57.0 ± 10.1 | 53.9 ± 9.6 | 0.17 |
| FEV1 % predicted(%) | 58.4 ± 19.2 | 52.8 ± 17.3 | 0.18 |
Data are mean (SD) unless otherwise stated.
COPD: chronic obstructive pulmonary disease, BMD: bone mineral density, BMI: body mass index, CAT: COPD Assessment Test, BODE index: body mass index, airflow obstruction, dyspnea, and exercise capacity index, FEV1: forced expiratory volume in one second