Table 1.
Characteristics of COPD Patients (n=95)
| Variable | Mean/N/Median | SD/%/IQR |
|---|---|---|
| Demographic | ||
| Age (years-old; median, IQR) | 72.00 | 15.00 |
| Male (N, %) | 63 | 66.32 |
| BMI (kg/m2; median, IQR) | 19.60 | 2.37 |
| Smoking status (N, %) | ||
| Smoker | 69 | 72.63 |
| Ex-smoker | 12 | 12.63 |
| Clinical | ||
| Course of disease (years; median, IQR) | 10.00 | 5.00 |
| Frequency of acute exacerbation in the past 1 year (median, IQR) | 1.00 | 1.00 |
| Exacerbation frequency ≥ 2 | 35 | 36.84 |
| CAT score (median, IQR) | 18.00 | 7.00 |
| mMRC score (median, IQR) | 2.00 | 1.00 |
| Lung Function | ||
| FEV1 (L; median, IQR) | 1.20 | 0.60 |
| FEV1%pred (median, IQR) | 57.21 | 16.28 |
| FEV1/FVC% (mean, SD) | 53.94 | 7.85 |
| Hematological Indicators | ||
| WBC (×109; mean, SD) | 8.26 | 1.97 |
| NE (×109; median, IQR) | 5.63 | 2.28 |
| EO (×109; median, IQR) | 0.10 | 0.41 |
| hs-CRP (mg/L; median, IQR) | 5.50 | 6.64 |
| IL-6 (pg/mL; median, IQR) | 8.80 | 26.07 |
Notes: Normal range of WBC, NE, EO, hs-CRP and IL-6 (3.5~9.5×109, 1.8~6.3×109, 0.02~0.52×109, 0~5 mg/L, 0~7 pg/mL).
Abbreviations: IQR, interquartile range (25th–75th percentile); N, number; SD, standard deviation; BMI, body mass index; CAT, chronic obstructive pulmonary disease assessment test; mMRC, modified British medical research council; FEV1, forced expiratory volume in 1 second; FEV1%pred, FEV1 as a percentage of the predicted value; FVC, forced vital capacity; WBC, white blood cell count; NE, absolute neutrophil count; EO, absolute eosinophil count; hs-CRP, hypersensitive C reactive protein; IL-6, interleukin-6.