Table 2.
Logistic regression of acute exacerbation readmission in elderly patients with COPD within 30 days
| Influencing factors | Β value | SE value | Wald value | P value | OR value | 95%CI |
|---|---|---|---|---|---|---|
| Age | 0.156 | 0.179 | 0.761 | 0.383 | 1.169 | 0.823~1.660 |
| Education level | − 0.358 | 0.140 | 6.499 | 0.011 | 0.699 | 0.531~0.921 |
| Smoking status | 0.960 | 0.198 | 23.516 | 0.000 | 2.612 | 1.772~3.851 |
| Diabetes | 0.642 | 0.413 | 2.416 | 0.120 | 1.900 | 0.846~4.268 |
| CHD | 1.030 | 0.357 | 8.334 | 0.004 | 2.801 | 1.392~5.637 |
| Hospitalization times of acute exacerbation of COPD in the past 1 year | 1.359 | 0.267 | 25.872 | 0.000 | 3.891 | 2.305~6.567 |
| Seasonal factors | – | – | 16.110 | 0.001 | – | – |
| Spring | 1.339 | 0.427 | 9.833 | 0.002 | 3.814 | 1.652~8.806 |
| Fall | 1.184 | 0.424 | 7.802 | 0.005 | 3.268 | 1.424~7.502 |
| Winter | 1.623 | 0.409 | 15.740 | 0.000 | 5.070 | 2.274~11.306 |
| Long-term home oxygen therapy | − 1.125 | 0.334 | 11.305 | 0.001 | 0.325 | 0.169~0.626 |
| Regular medication | − 1.161 | 0.357 | 10.596 | 0.001 | 0.313 | 0.156~0.630 |
| Rehabilitation exercise | − 0.494 | 0.298 | 2.749 | 0.097 | 0.610 | 0.340~1.094 |
| Course of disease | 0.006 | 0.015 | 0.150 | 0.699 | 1.006 | 0.977~1.035 |
| ADL | − 0.228 | 0.192 | 1.409 | 0.235 | 0.796 | 0.547~1.160 |
| GDS | 0.119 | 0.189 | 0.393 | 0.531 | 1.126 | 0.777~1.631 |
| mMRC | 0.021 | 0.134 | 0.026 | 0.873 | 1.022 | 0.786~1.327 |
| MNA-SF | 1.541 | 0.224 | 47.241 | 0.000 | 4.671 | 3.010~7.249 |
| Constant | − 9.085 | 1.084 | 70.301 | 0.000 | 0.000 | – |
CHD coronary heart disease, ADL activities of daily living, GDS the Geriatric Depression Scale, mMRC Modified Medical Research Council Dyspnea Scale, MNA-SF the Mini Nutritional Assessment-Short Form