Table 1 Baseline characteristics of lung abscess patients
|  | All (N = 782) |
|---|---|
Duration of hospital stay, days | 13.0 (9.00–20.0) |
Age, years | 60.0 (51.0–67.0) |
Gender, male | 627 (80.2%) |
Smoking | Â |
 Current smoker | 206 (26.3%) |
 Former smoker | 175 (22.4%) |
 Never-smoker | 401 (51.3%) |
Alcoholism consumption history | 253 (32.4%) |
Chronic obstructive pulmonary disease | 85 (10.9%) |
Asthma | 28 (3.58%) |
Pulmonary embolism | 17 (2.17%) |
Broncho-esophageal fistula | 6 (0.77%) |
Bronchiectasis | 45 (5.75%) |
Interstitial lung diseases | 43 (5.50%) |
Sinusitis | 15 (1.92%) |
Immunosuppressive therapy | 38 (4.86%) |
Diabetes mellitus | 232 (29.7%) |
Malignancy | Â |
 Lung cancer | 56 (7.16%) |
 Other metastatic solid tumor | 36 (4.60%) |
 None | 690 (88.2%) |
Cardiovascular diseases | 142 (18.2%) |
Neurological diseases | 93 (11.9%) |
Kidney diseases | 58 (7.42%) |
liver abscess | 25 (3.20%) |
Liver disease | Â |
 HBV | 19 (2.43%) |
 Liver cirrhosis | 5 (0.64%) |
 None | 81 (10.4%) |
 Others | 677 (86.6%) |
Symptoms and signs | Â |
 Fever | 462 (59.1%) |
 Cough | 578 (73.9%) |
 Expectoration | 532 (68.0%) |
 Hemoptysis | 114 (14.6%) |
 Chest pain | 156 (19.9%) |
Loss of appetite | 66 (8.44%) |
 Dyspnea | 51 (6.52%) |
Intervention | Â |
 Bronchoscopy | 365 (46.7%) |
 Ultrasonography-guided | 72 (9.21%) |
 CT guided transthoracic needle | 109 (13.9%) |
 Thoracic drainage | 164 (21.0%) |
 Surgeon | 30 (3.84%) |