Table 1 Characteristics of older patients with community-acquired pneumonia
Characteristic | Total patients n = 4880 | Vital status at discharge | P value* | |
|---|---|---|---|---|
Survivors n = 4749 | Deceased n = 131 | |||
Age, years | 72 (68–80) | 71 (67–79) | 75 (70–84) | < 0.001 |
Male, n (%) | 2895 (59.3) | 2809 (59.1) | 86 (65.6) | 0.149 |
Barthel index (BI) | 75 (65–85) | 75 (65–85) | 45 (20–65) | < 0.001 |
BI< 60, n (%) | 720 (14.8) | 629 (13.2) | 91 (69.5) | < 0.001 |
BI≥60, n (%) | 4160 (85.2) | 4120 (86.8) | 40 (30.5) | |
Comorbid conditions, n (%) | ||||
Smoking | 2336 (47.9) | 2268 (47.8) | 68 (51.9) | 0.425 |
COPD | 676 (13.9) | 656 (13.8) | 20 (15.3) | 0.609 |
Lung cancer | 478 (9.8) | 455 (9.6) | 23 (17.6) | 0.004 |
Diabetes | 1214 (24.9) | 1172 (24.7) | 42 (32.1) | 0.037 |
Chronic heart failure | 922 (18.9) | 893 (18.8) | 29 (22.1) | 0.365 |
Hypertension | 2392 (49.0) | 2321 (48.9) | 71 (54.2) | 0.250 |
Cerebrovascular disease | 330 (6.8) | 316 (6.7) | 14 (10.7) | 0.077 |
Chronic renal failure | 86 (1.8) | 83 (1.7) | 3 (2.3) | 0.520 |
Chronic liver disease | 146 (2.9) | 145 (3.1) | 1 (0.8) | 0.188 |
Clinical symptoms, n (%) | ||||
Fever | 1773 (36.3) | 1715 (36.1) | 58 (44.3) | 0.065 |
Cough and expectoration | 1014 (20.8) | 980 (20.6) | 34 (25.9) | 0.155 |
Chest pain | 433 (8.9) | 427 (8.9) | 6 (4.6) | 0.086 |
Dyspnea | 853 (17.5) | 816 (17.2) | 37 (28.2) | 0.002 |
Duration of symptoms | 6.90 ± 8.78 | 6.86 ± 9.03 | 6.93 ± 8.21 | 0.964 |
Clinical data, n (%) | ||||
Respiratory failure | 210 (4.3) | 147 (2.4) | 63 (48.1) | < 0.001 |
NIV/IMV | 167 (3.4) | 115 (2.4) | 52 (39.7) | < 0.001 |
Impaired consciousness | 40 (0.8) | 28 (0.6) | 12 (9.2) | < 0.001 |
Respiratory rate ≥ 30/min | 66 (1.4) | 57 (1.2) | 9 (6.9) | < 0.001 |
Blood pressure SBP < 90 mmHg | 26 (0.8) | 23 (0.5) | 3 (2.3) | 0.050 |
DBP ≤ 60 mmHg | 594 (12.2) | 570 (12.0) | 24 (18.3) | 0.265 |
BUN≥7 mmol/L | 1531 (31.4) | 1405 (29.6) | 126 (96.2) | < 0.001 |
WBC < 4.0 × 109/L or > 10.0 × 109/L | 858 (17.6) | 807 (17.0) | 51 (38.9) | < 0.001 |
PLT < 10.0 × 109/L | 255 (5.2) | 210 (4.4) | 45 (34.4) | < 0.001 |
Pathogens, n (%) | < 0.001 | |||
Bacterial pneumonia | 4144 (84.9) | 4050 (85.3) | 94 (71.8) | |
Viral pneumonia | 62 (1.3) | 56 (1.2) | 6 (4.6) | |
Fungal pneumonia | 146 (3.0) | 129 (2.7) | 17 (12.9) | |
Mycoplasma pneumonia/Chlamydial pneumonia | 528 (10.8) | 514 (10.8) | 14 (10.7) | |