Table 1. Clinical characteristics of patients with pathologically confirmed consolidative mucinous adenocarcinoma and bacterial pneumonia.
| Mucinous adenocarcinoma | Bacterial pneumonia | P value | |
|---|---|---|---|
| No. of patients | 52 | 45 | |
| Age | 67.3 ± 10.8 [46–91] | 62.6 ±17.2 [15–88] | 0.11 |
| Male | 27 (51.9) | 32 (71.1) | 0.05 |
| Smoking | 0.34 | ||
| Never smoked | 27 (51.9) | 19 (42.2) | |
| Smoker | 25 (48.1) | 26 (57.8) | |
| Pack year (smoker) | 30.4 ± 22.5 [2–106] | 33.1 ± 27.4 [1–120] | 0.70 |
| Co-morbidity | |||
| Chronic respiratory disease | 3 (5.7) | 5 (11.1) | 0.47 |
| Congestive heart failure | 0 (0) | 2 (4.4) | 0.21 |
| Diabetes | 14 (26.9) | 15 (33.3) | 0.49 |
| Liver cirrhosis | 1 (1.9) | 2 (4.4) | 0.60 |
| Other malignancy | 4 (7.7) | 16 (35.5) | <0.001 |
| Symptom | |||
| Duration (days) ‡ | 116.8 ± 179.8 [3–1080] | 4.1 ± 4.9 [0–30] | <0.001 |
| Asymptomatic | 8 (15.3) | 1 (2.2) | |
| Fever | 2 (3.8) | 29 (64.4) | <0.001 |
| Cough | 35 (67.3) | 37 (82.2) | 0.09 |
| Chest pain | 3 (5.8) | 12 (26.7) | 0.01 |
| Sputum | 31 (59.6) | 38 (84.4) | 0.01 |
| Dyspnea | 13 (25.0) | 28 (62.2) | <0.001 |
| Drowsy mentality | 0 (0) | 3 (6.7) | 0.10 |
| Laboratory findings | |||
| White blood cells x103 | 6.9 ± 2.3 [3.4–12.8] | 12.4 ± 10.2 [0.1–46.1] | 0.001 |
| C-reactive protein | 3.3 ± 6.5 [0.1–30.2] | 22.9 ± 12.8 [0.1–53.4] | <0.001 |
| Blood urea nitrogen | 15.2 ± 5.7 [7–35] | 25.8 ± 14.3 [5–68] | <0.001 |
| Creatinine | 0.8 ± 0.2 [0.5–1.5] | 1.1 ± 0.5 [0.4–2.67] † | <0.001 |
| CURB-65 (0–5) | 1.9 ± 1.3 | 0.9 ± 1.0 | < 0.001 |
Note. Unless otherwise indicated, data are number of patients (%). Data are mean ± standard deviation [range].
‡Duration from symptom onset.
†Five patients with serum creatinine levels >1.7 mg/dL were hydrated before and after contrast enhanced CT examination and monitored for creatinine levels after CT examination. CURB-65, pneumonia severity index.