Table 2.
Comparison of baseline characteristics between patients with experience of COPD exacerbation and those without
| Variables | Experience of acute exacerbation | Non-experience of acute exacerbation | P-value |
|---|---|---|---|
| Age (years) | 70.4±6.9 | 70.4±7.7 | 0.989 |
| BMI (kg/m2) | 23.6±2.9 | 23.4±3.5 | 0.732 |
| mMRC score | 1.57±0.93 | 1.25±0.85 | 0.015 |
| SGRQ-c score | 37.9±2.00 | 28.1±1.6 | 0.000 |
| CAT score | 16.41±7.80 | 13.25±6.83 | 0.005 |
| Postbronchodilator FEV1 (L) | 1.69±0.44 | 1.80±0.48 | 0.102 |
| Postbronchodilator FEV1 (% of predicted) | 64.5±13.8 | 67.1±13.0 | 0.188 |
Notes: Data shown as mean ± standard deviation. An independent t-test was used to compare the two groups.
Abbreviations: BMI, body mass index; CAT, COPD assessment test; FEV1, forced expiratory volume in 1 second; mMRC, modified Medical Research Council; SGRQ-c, St George’s Respiratory Questionnaire for COPD.