Table 1.
Comparison of clinicoradiological characteristics between survivors and nonsurvivors.
| Variables | Total N =20 (%) | Survivors N =14 (%) | Nonsurvivors N =6 (%) | p |
|---|---|---|---|---|
| Age (yr) | 56.5±13.0 | 55.7±11.6 | 58.2±16.8 | NS |
| Gender (M/F) | 12/8 | 7/7 | 5/1 | NS |
| Direct admission to the intensive care unit | 15 (75) | 10 (71) | 5 (83) | NS |
| Underlying conditions | ||||
| Diabetes mellitus | 13 (65) | 9 (64) | 4 (67) | NS |
| Hypertension | 4 (20) | 1 (7) | 3 (50) | 0.028 |
| Cerebrovascular disease | 4 (20) | 2 (14) | 2 (33) | NS |
| Excessive alcoholic consumption | 2 (10) | 1 (7) | 1 (17) | NS |
| End stage renal disease | 1 (5) | 0 | 1 (17) | NS |
| Biochemistry data | ||||
| White blood cell count (109/L) | 19.4±11.5 | 22.4±11.4 | 12.5±8.8 | NS |
| Platelet (109/L) | 106.1±108.6 | 96.5±114.9 | 128.3±98.3 | NS |
| C-reactive protein (mg/dL) | 25.5±9.7 | 23.4±8.8 | 37.5±3.1 | NS |
| Albumin (g/dL) | 2.5±0.5 | 2.5±0.4 | 2.4±0.7 | NS |
| Blood urea nitrogen (mg/dL) | 46.9±25.8 | 40.7±19.7 | 61.3±34.1 | NS |
| Creatinine (mg/dL) | 1.92±1.5 | 1.49±0.5 | 2.93±2.4 | 0.039 |
| Sodium (mEq/L) | 135.1±11.0 | 132.0±8.8 | 142.2±13.2 | NS |
| Potassium (mEq/L) | 3.9±1.1 | 3.78±0.9 | 4.16±1.4 | NS |
| Arterial blood gas | ||||
| pH | 7.34±0.13 | 7.39±0.1 | 7.22±0.2 | 0.01 |
| PaCO2 (mmHg) | 33.6±11.9 | 29.7±9.3 | 42.7±13.0 | 0.021 |
| HCO3- (mmol/L) | 17.9±4.6 | 18.1±3.6 | 17.6±6.7 | NS |
| Glycosylated hemoglobin (%) | 12.3±3.0 | 12.5±3.6 | 11.7±0.7 | NS |
| Pathogens | ||||
| Gram-negative infection | 13 (65) | 9 (64) | 4 (67) | NS |
| Gram-positive infection | 7 (35) | 5 (36) | 2 (33) | NS |
| Scoring systems at ICU admission | ||||
| APACHE II score | 22±8.6 | 18±6.0 | 31±6.0 | <0.001 |
| SOFA score | 9±3.3 | 8±2.6 | 12±3.4 | 0.01 |
| Complications | ||||
| Acute respiratory failure | 15 (75) | 10 (71) | 5 (83) | NS |
| Septic shock | 12 (60) | 7 (50) | 5 (83) | NS |
| Acute kidney injury | 5 (25) | 1 (7) | 4 (67) | 0.005 |
| Acute respiratory distress syndrome | 3 (15) | 1 (7) | 2 (33) | NS |
| Disseminated intravascular coagulopathy | 2 (10) | 0 | 2 (33) | 0.023 |
| Length of stay in ICU (d) | 12.6±8.9 | 10.7±3.7 | 17.0±15.1 | NS |
| Computed tomographic findings | ||||
| A feeding vessel sign | 18 (90) | 12 (86) | 6 (100) | NS |
| Nodule without cavity | 16 (80) | 11 (79) | 5 (83) | NS |
| Peripheral wedge-shaped opacity | 15 (75) | 9 (64) | 6 (100) | NS |
| Nodule with cavity | 13 (65) | 9 (64) | 4 (67) | NS |
| Pleural effusion | 13 (65) | 10 (71) | 3 (50) | NS |
| Focal consolidation | 8 (40) | 5 (36) | 3 (50) | NS |
| Lung abscess | 6 (30) | 2 (14) | 4 (67) | 0.019 |
| Patchy ground-glass attenuation | 4 (20) | 2 (14) | 2 (33) | NS |
| Bilateral lesions | 16 (80) | 11 (79) | 5 (83) | NS |
APACHE: Acute Physiology and Chronic Health Evaluation; ICU: Intensive care unit; NS: Not significant; SOFA: Sequential Organ Failure Assessment