Table 2 Matrix after rotation of factor load
Characteristics | Common factor 1 | Common factor 2 | Common factor 3 | Common factor 4 | Common factor 5 | Common factor 6 | Common factor7 |
|---|---|---|---|---|---|---|---|
Smoking duration | 0.910 | – | – | – | – | – | – |
Smoking quantity | 0.900 | – | – | – | – | – | – |
Smoking status | 0.877 | – | – | – | – | – | – |
Sex | 0.708 | – | – | – | – | – | – |
Diabetes | – | 0.841 | – | – | – | – | – |
Hypoproteinemia | – | 0.808 | – | – | – | – | – |
Hypertension | – | 0.779 | – | – | – | – | – |
CHD | – | 0.734 | – | – | – | – | – |
mMRC | – | – | 0.758 | – | – | – | – |
CAT | – | – | 0.740 | – | – | – | – |
ADL | – | – | 0.710 | – | – | – | – |
GDS | – | – | 0.606 | – | – | – | – |
Nutritional condition condition | – | – | 0.563 | – | – | – | – |
Respiration rate | – | – | – | 0.777 | – | – | – |
SaO2 | – | – | – | 0.773 | – | – | – |
PO2 | – | – | – | 0.685 | – | – | – |
PCO2 | – | – | – | 0.577 | – | – | – |
Home oxygen therapy | – | – | – | – | 0.772 | – | – |
Rehabilitation exercise | – | – | – | – | 0.730 | – | – |
Regular medication | – | – | – | – | 0.719 | – | – |
Number of | – | – | – | – | – | 0.783 | – |
Hospitalizations | |||||||
In past 1 year | |||||||
Age factors | – | – | – | – | – | 0.558 | – |
Seasonal factors | – | – | – | – | – | – | 0.957 |