Table 3.
Multivariate Analysis of ≥3.0 METs Activity Time
| Factors | Coefficient | Standard Error | p-value |
|---|---|---|---|
| Age (years) | |||
| <69 | Reference | ||
| ≥69 to <74 | −5.7832 | 3.7471 | 0.1235 |
| ≥74 to <79 | −10.3509 | 3.7475 | 0.0060 |
| ≥79 | −20.0063 | 3.8480 | <0.0001 |
| GOLD stage | |||
| I | Reference | ||
| II | −2.6361 | 3.1200 | 0.3987 |
| III | −12.3668 | 3.6648 | 0.0008 |
| IV | −24.5367 | 7.8574 | 0.0019 |
| mMRC dyspnea score | |||
| 0 | Reference | ||
| 1 | −7.4877 | 3.1136 | 0.0166 |
| ≥2 | −13.9673 | 3.6019 | 0.0001 |
| Job status | |||
| Employed | Reference | ||
| Not employed | −13.2208 | 2.8632 | <0.0001 |
Abbreviations: GOLD, Global Initiative for Chronic Obstructive Lung Disease; MET, metabolic equivalent; mMRC, modified Medical Research Council.