Table 1 Demographics and characteristics of all the patients at the baseline
From: The influence of anemia on one-year exacerbation rate of patients with COPD-PH
Variables | COPD-PH-anemia (n = 40) | COPD-PH (n = 42) | COPD-anemia (n = 48) | COPD (n = 50) | P value |
|---|---|---|---|---|---|
Age-yrs | 65.9 ± 5.3 | 68.7 ± 8.1 | 62.6 ± 6.7 | 67.2 ± 7.5 | 0.587 |
Sex (M/F)-% | 75.0/25.0 | 71.4/28.6 | 68.8/31.2 | 76.0/24.0 | 0.661 |
BMI-kg/m2 | 18.5 ± 5.8 | 21.6 ± 6.2 | 22.4 ± 4.7 | 25.1 ± 7.1 | 0.025 |
Smoking history (Y/N)-% | 90.0/10.0 | 88.1/11.9 | 85.4/14.6 | 86.0/14.0 | 0.549 |
FEV1 of predicted value-% | 40.7 ± 25.9 | 43.8 ± 19.6 | 47.7 ± 22.6 | 42.3 ± 17.8 | 0.383 |
AE history- no. | 2.8 ± 1.5 | 2.5 ± 2.3 | 2.6 ± 1.7 | 2.2 ± 1.8 | 0.446 |
GOLD (I/II/III/IV)-% | 0/7.5/47.5/45.0 | 0/11.9/45.2/42.9 | 0/8.3/41.7/50.0 | 0/10.0/43.1/46.9 | 0.125 |
Group (A/B/C/D)-% | 0/12.5/40.0/47.5 | 0/14.3/47.6/38.1 | 0/14.6/43.8/41.6 | 0/16.0/40.0/44.0 | 0.374 |
mPAP-mmHg | 33.8 ± 18.5 | 30.2 ± 22.6 | 20.6 ± 15.3 | 18.9 ± 25.4 | 0.016 |
CAT score-points | 23.5 ± 10.2 | 16.9 ± 13.8 | 22.2 ± 8.6 | 18.7 ± 15.1 | 0.186 |
6MWD-m | 298.9 ± 183.4 | 353.6 ± 164.7 | 382.1 ± 173.7 | 452.3 ± 152.2 | 0.003 |
NT-pro BNP-ng/L | 1608.2 ± 679.8 | 1344.9 ± 852.4 | 556.7 ± 391.1 | 374.6 ± 421.0 | <0.001 |
PaO2-mmHg | 45.3 ± 13.8 | 50.7 ± 18.1 | 55.6 ± 16.4 | 65.7 ± 17.2 | 0.006 |
Peak VO2-ml/min/kg | 13.9 ± 5.7 | 15.2 ± 7.3 | 18.5 ± 6.2 | 22.2 ± 8.1 | 0.018 |
Hemoglobin-g/dL−1 | 9.4 ± 5.5 | 14.2 ± 6.7 | 10.7 ± 8.3 | 13.8 ± 4.9 | 0.036 |