Table 2.
Comparison of clinical characteristics between non-COPD and COPD subjects
| Variables | Male (n=1,179)
|
Female (n=387)
|
||||
|---|---|---|---|---|---|---|
| Non-COPD n=597 |
COPD n=582 |
P-value | Non-COPD n=188 |
COPD n=199 |
P-value | |
| Age, years | 64.5±9.3 | 65.0±9.1 | 0.325 | 66.0±9.3 | 65.6±9.0 | 0.653 |
| Age category, years | ||||||
| 40–49 | 50 (8.4) | 42 (7.2) | 0.554 | 12 (6.4) | 10 (5.0) | 0.818 |
| 50–59 | 124 (20.8) | 110 (18.9) | 30 (16) | 38 (19.1) | ||
| 60–69 | 248 (41.5) | 240 (41.2) | 78 (41.5) | 79 (39.7) | ||
| ≥70 | 175 (29.3) | 190 (32.6) | 68 (36.2) | 72 (36.2) | ||
| Smoking status | ||||||
| Never | 136 (22.8) | 76 (13.1) | <0.001 | 176 (93.6) | 183 (92) | 0.704 |
| Ex-smoker | 328 (54.9) | 298 (51.2) | 8 (4.3) | 9 (4.5) | ||
| Current | 133 (22.3) | 208 (35.7) | 4 (2.1) | 7 (3.5) | ||
| Anemia | 55 (9.6) | 34 (6.1) | 0.039 | 17 (9.6) | 17 (9.2) | 0.905 |
| HGS, kg | 38.0±7.0 | 38.9±7.0 | 0.044 | 23.8±4.6 | 24.2±4.9 | 0.342 |
| FEV1 % of predicted value | 95.3±12.5 | 79.5±14.7 | <0.001 | 98.3±12.9 | 80.0±17.6 | <0.001 |
| GOLD stage | ||||||
| GOLD I | 300 (51.5) | 102 (51.3) | ||||
| GOLD II | 261 (44.8) | 86 (43.2) | ||||
| GOLD III, IV | 21 (3.6) | 11 (5.5) | ||||
Note: Data represented as mean ± SD or n (%).
Abbreviations: COPD, chronic obstructive pulmonary disease; SD, standard deviation; HGS, hand grip strength; FEV1, forced expiratory volume in 1 second; GOLD, Global Initiative for Chronic Obstructive Lung Disease.