Research Article
The Role of Red Blood Cell Distribution Width in the Severity and Prognosis of Community-Acquired Pneumonia
Table 1
Data characteristic between the two groups.
| | | RDW < 12.987% | RDW ≥ 12.987% | value |
| | Age (years) | 53.3 ± 18.1 | 59.9 ± 18.3 | 0.000 | | Hospitalization (days) | 10.52 ± 4.66 | 10.41 ± 5.84 | 0.559 | | Smoker, n (%) | 706 (37.8) | 526 (37.7) | 0.850 | | Drinker, n (%) | 463 (24.8) | 252 (17.9) | 0.000 | | Pulmonary comorbidities, n (%) | | Bronchial asthma | 79 (4.2) | 42 (3.0) | 0.062 | | COPD | 148 (7.9) | 164 (11.7) | 0.000 | | Bronchiectasis | 38 (2.0) | 48 (3.1) | 0.062 | | Old pulmonary tuberculosis | 66 (3.5) | 73 (4.2) | 0.020 | | Interstitial lung disease | 15 (0.8) | 22 (1.6) | 0.041 |
| | Extrapulmonary diseases, n (%) | | Heart failure | 37 (2.0) | 71 (5.0) | 0.000 | | Liver disease | 232 (12.4) | 138 (11.3) | 0.020 | | Renal disease | 53 (2.8) | 89 (6.3) | 0.000 | | Hypertension | 355 (19.0) | 257 (25.0) | 0.000 | | Diabetes | 211 (11.3) | 192 (13.6) | 0.042 | | Cerebrovascular disease | 195 (10.4) | 270 (19.2) | 0.000 | | Coronary heart disease | 221 (11.8) | 210 (14.9) | 0.009 | | Tumor | 54 (2.9) | 60 (4.3) | 0.033 | | Urinary tract infection | 115 (6.1) | 104 (7.4) | 0.160 | | Hyperthyroidism | 12 (0.6) | 11 (0.8) | 0.633 |
| | Auxiliary examination | | Pleural effusion, n (%) | 369 (19.7) | 350 (24.9) | 0.000 | | Multiple pulmonary lobe infiltration, n (%) | 920 (49.3) | 789 (56.1) | 0.000 | | pH | 7.444 ± 0.049 | 7.4956 ± 2.000 | 0.424 | | PaO2 (mmHg) | 70.476 ± 16.386 | 67.695 ± 17.744 | 0.000 | | PaCO2 (mmHg) | 36.654 ± 6.830 | 37.770 ± 9.189 | 0.002 | | WBC (109/L) | 8.920 ± 15.004 | 9.247 ± 5.977 | 0.391 | | PLT (109/L) | 232.037 ± 85.554 | 237.232 ± 94.415 | 0.100 | | HCT (%) | 40.843 ± 13.331 | 39.739 ± 5.732 | 0.001 | | HGB (g/L) | 138.058 ± 14.211 | 134.378 ± 15.528 | 0.000 | | DDP (μg/L) | 1.619 ± 7.103 | 2.000 ± 4.719 | 0.079 | | FIB (g/L) | 4.442 ± 1.755 | 4.280 ± 1.627 | 0.013 | | ALB (g/L) | 37.762 ± 5.460 | 36.307 ± 5.975 | 0.000 | | BUN (mmol/L) | 5.283 ± 11.210 | 6.105 ± 4.191 | 0.009 | | PCT (ng/L) | 0.828 ± 4.460 | 1.166 ± 5.748 | 0.194 | | CRP (mg/L) | 63.211 ± 81.097 | 68.749 ± 83.384 | 0.358 |
| | PSI, n (%) | 0.000 | | I | 729 (39.0) | 366 (26.0) | | II | 535 (28.6) | 370 (26.3) | | III | 339 (18.1) | 305 (21.7) | | IV | 227 (12.1) | 272 (19.3) | | V | 41 (2.2) | 94 (6.7) |
| | CURB-65, n (%) | 0.000 | | 0 | 1230 (65.8) | 659 (46.8) | | 1 | 465 (24.9) | 485 (34.4) | | 2 | 151 (8.1) | 197 (14.0) | | 3 | 23 (1.2) | 59 (4.2) | | 4 | 1 (0.1) | 8 (0.6) | | 5 | 0 | 0 |
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