Characteristics | AECOPD with CAP | P-value | AECOPD without CAP | P-value | ||
---|---|---|---|---|---|---|
Readmission ≤ 30 days (n = 19) | Readmission > 30 days (n = 121) | Readmission ≤ 30 days (n = 22) | Readmission > 30 days (n = 152) | |||
Age, y, mean (SD) | 76.2 ± 7.4 | 72.1 ± 8.7 | 0.055 | 72.8 ± 11.1 | 71.8 ± 9.8 | 0.655 |
Male sex, n (%) | 14 (73.7) | 93 (76.9) | 0.627 | 15 (68.2) | 118 (77.6) | 0.329 |
CAT score, mean (SD) | 25.4 ± 6.8 | 22.7 ± 6.7 | 0.107 | 25.2 ± 5.9 | 22.0 ± 7.2 | 0.044 |
amMRC dyspnea scale, n (%) | ||||||
2–4 | 15 (78.9) | 96 (79.3) | 0.869 | 18 (81.8) | 117 (77.0) | 0.787 |
GOLD stage, A/B/C/D, n | 1/7/3/8 | 2/54/23/42 | 0.332 | 0/9/4/9 | 5/83/24/40 | 0.095 |
GOLD C, D ratio, n (%) | 11 (57.9) | 65 (53.7) | 0.379 | 13 (59.1) | 64 (42.1) | 0.134 |
Long-term oxygen therapy | 7 (36.8) | 26 (21.5) | 0.117 | 6 (9.1) | 27 (17.8) | 0.380 |
Smoking amount, py, mean (SD) | 43.1 ± 17.4 | 40.3 ± 15.8 | 0.506 | 45.0 ± 13.4 | 42.7 ± 17.8 | 0.604 |
BMI, kg/m2 | 21.9 ± 2.6 | 21.3 ± 2.9 | 0.481 | 21.5 ± 2.8 | 21.9 ± 3.8 | 0.666 |
Underlying comorbid conditions, n (%) | ||||||
Hypertension | 7 (36.8) | 71 (58.7) | 0.140 | 15 (68.2) | 103 (67.8) | 0.969 |
Diabetes mellitus | 12 (63.2) | 59 (48.8) | 0.190 | 8 (36.4) | 71 (46.7) | 0.362 |
Congestive heart failure | 5 (26.3) | 33 (27.3) | 0.855 | 8 (36.4) | 56 (36.8) | 0.965 |
Chronic kidney disease | 1 (5.3) | 5 (4.1) | 0.726 | 1 (4.5) | 3 (2.0) | 0.421 |
Hepatobiliary disease | 0 (0.0) | 3 (2.5) | 0.306 | 1 (4.5) | 3 (2.0) | 0.421 |
Medications before an admission, n (%) | ||||||
Inhaled corticosteroids | 11 (57.9) | 72 (59.5) | 0.951 | 13 (59.1) | 86 (56.6) | 0.824 |
Long-acting muscarinic antagonists | 10 (52.6) | 69 (57.0) | 0.598 | 12 (54.5 | 76 (50.0) | 0.690 |
Long-acting beta2 agonists | 11 (57.9) | 62 (51.2) | 0.943 | 9 (40.9) | 83 (54.6) | 0.229 |
Functional parameters, %, mean (SD) | ||||||
Post-bronchodilator FEV1/FVC | 49.0 ± 10.3 | 49.45 ± 13.6 | 0.962 | 48.3 ± 13.8 | 52.7 ± 13.2 | 0.093 |
Post-bronchodilator FEV1 | 58.7 ± 23.9 | 54.6 ± 21.0 | 0.606 | 55.5 ± 29.8 | 60.7 ± 22.5 | 0.217 |
Post-bronchodilator FVC | 78.8 ± 23.2 | 72.3 ± 18.9 | 0.387 | 75.3 ± 24.7 | 76.5 ± 20.3 | 0.554 |
Mortality within 6 months, n (%) | 15 (78.9) | 19 (15.7) | < 0.001 | 9 (40.9) | 14 (9.2) | < 0.001 |