Table 3.
Comorbidities associated with the CAT score on stepwise multiple regression analysis
| Comorbidity | p value | Cumulative R 2 |
|---|---|---|
| GERD (FSSG ≥ 8) |
<0.001 |
0.0986 |
| Depression (HAD-D ≥ 11) |
<0.001 |
0.1520 |
| %FEV1 |
<0.001 |
0.2032 |
| Arrhythmia |
0.0030 |
0.2326 |
| Anxiety (HAD-A ≥ 11) |
0.0188 |
0.2521 |
| Osteoporosis |
0.1372 |
0.2595 |
| Age |
0.3540 |
0.2623 |
| BMI |
0.4910 |
0.2639 |
| Pack-year | 0.6585 | 0.2645 |
CAT COPD assessment test, GERD Gastro-esophageal reflux disease, FSSG Frequency Scale for the Symptoms of GERD, HAD-D The seven items for depression of Hospital Anxiety and Depression Scale. HAD-A The seven items for anxiety of Hospital Anxiety and Depression Scale, BMI Body mass index.