Table 3.
The clinical and laboratory features of 24 patients which was classified in pneumonia, lung abscess and bacterial pleurisy only
| Total | Pneumonia | Lung abscess | Bacterial pleurisy only | p-Value | |
|---|---|---|---|---|---|
| (n = 24) | (n = 16) | (n = 5) | (n = 3) | ||
| Age (y); mean ± SD | 72.1 ± 11.6 | 74.8 ± 9.8 | 68.0 ± 15.4 | 65.0 ± 9.8 | NS |
| Gender (male/female) | 18/6 | 11/5 | 5/0 | 2/1 | NS |
| BMI; mean ± SD | 20.3 ± 4.4 | 19.6 ± 4.6 | 25.0 ± 3.5 | 19.6 ± 2.2 | p = 0.032** |
| Comorbidity diseases | 23 (95.8) | 16 (100) | 4 (80.0) | 3 (100) | NS |
| Neoplastic disease | 7 (29.2) | 4 (25.0) | 2 (40.0) | 1 (33.3) | NS |
| Cerebrovascular disease | 9 (37.5) | 7 (43.8) | 1 (20.0) | 1 (33.3) | NS |
| Chronic pulmonary disease | 2 (8.3) | 1 (6.3) | 1 (20.0) | 0 (0.0) | NS |
| Chronic cardiac disease | 4 (16.7) | 4 (25.0) | 0 (0.0) | 0 (0.0) | NS |
| Chronic liver disease | 3 (12.5) | 3 (18.8) | 0 (0.0) | 0 (0.0) | NS |
| Chronic renal disease | 4 (16.7) | 2 (12.5) | 0 (0.0) | 2 (66.7) | NS |
| Diabetes mellitus | 6 (25.0) | 4 (25.0) | 0 (0.0) | 2 (66.7) | NS |
| Smoking history | 10 (41.7) | 7 (43.8) | 3 (60.0) | 0 (0.0) | NS |
| Alcohol | 6 (25.0) | 5 (31.3) | 1 (20.0) | 0 (0.0) | NS |
| The days from symptom onset to consultation (days) | 16.0 ± 19.6 | 9.0 ± 9.3 | 38.6 ± 30.8 | 16.0 ± 14.8 | p = 0.031* |
| Symptoms at presentation | |||||
| Fever | 19 (79.2) | 13 (81.3) | 4 (80.0) | 2 (66.7) | NS |
| Cough | 12 (50.0) | 7 (43.8) | 4 (80.0) | 1 (33.3) | NS |
| Sputum | 12 (50.0) | 7 (43.8) | 4 (80.0) | 1 (33.3) | NS |
| Blood sputum | 2 (8.3) | 0 (0.0) | 1 (20.0) | 1 (33.3) | NS |
| Chest pain | 12 (50.0) | 9 (56.3) | 1 (20.0) | 2 (66.7) | NS |
| Disturbance of consciousness | 3 (12.5) | 3 (18.8) | 0 (0.0) | 0 (0.0) | NS |
| Previous antibiotic treatment | 7 (29.2) | 6 (37.5) | 0 (0.0) | 1 (33.3) | NS |
| Clinical parameter | |||||
| Body temperature (°C) | 37.8 ± 0.80 | 37.9 ± 0.81 | 37.5 ± 0.97 | 37.8 ± 0.59 | NS |
| Systolic blood pressure (mmHg) | 120.0 ± 22.2 | 117.8 ± 22.4 | 116.4 ± 19.3 | 135.3 ± 27.2 | NS |
| Heart rate (beats/min) | 100.6 ± 15.1 | 102.7 ± 16.7 | 93.6 ± 13.4 | 101.0 ± 3.6 | NS |
| Respiratory rate (/min) | 23.5 ± 6.1 | 25.0 ± 5.5 | 17.3 ± 5.1 | 27.0 ± 4.2 | p = 0.029* |
| Hypoxia (SpO2 ≤ 90 %) | 15 (62.5) | 12 (75.0) | 1 (20.0) | 2 (66.7) | p = 0.047* |
| Laboratory findings | |||||
| White blood cell counts (/μL) | 16,763 ± 9412 | 18,869 ± 9532 | 10,080 ± 2906 | 16,667 ± 13,164 | p = 0.014* |
| C-reactive protein (mg/dL) | 18.2 ± 10.5 | 19.2 ± 11.0 | 11.7 ± 7.1 | 24.1 ± 9.6 | NS |
| Albumin (g/dL) | 2.5 ± 0.6 | 2.5 ± 0.7 | 2.7 ± 0.7 | 2.2 ± 0.4 | NS |
| Pleural effusion | 19 (79.2) | 14 (87.5) | 2 (40.0) | 3 (100) | NS |
| Complicated pleural effusion | 9 (37.5) | 6 (37.5) | 1 (20.0) | 2 (66.7) | NS |
| Empyema | 9 (37.5) | 8 (50.0) | 0 (0.0) | 1 (33.3) | NS |
| Cultured bacteria | |||||
| S. intermedius | 14 (58.3) | 11 (68.8) | 3 (60.0) | 0 (0.0) | NS |
| S. constellatus | 8 (33.3) | 4 (25.0) | 2 (40.0) | 2 (66.7) | NS |
| S. anginosus | 2 (8.3) | 1 (6.3) | 0 (0.0) | 1 (33.3) | NS |
| Pneumonia severity index | 125.2 ± 37.3 | 128.1 ± 37.8 | 123.6 ± 48.6 | 112.0 ± 16.5 | NS |
SD standard deviation, BMI body mass index, SpO 2 pulse oximetric saturation, NS not significant
*Statistically significant difference in the comparison between pneumonia and lung abscess; **Statistically significant difference in the comparison between pneumonia and bacterial pleurisy