Table 1. Characteristics of the 410 patients with pyogenic liver abscess presented at admission.

Clinical charateristics	Median (range)/n (percentage)
Age (years)	57 (1–89)
Gender (male:female)	252:158
Diabetes mellitus	116 (28.3%)
Prodroma
Respiratory tract infection	82 (20%)
Enteric infection	7 (1.7%)
Surgery history	141 (34.4%)
Liver abscess incision and drainage	4 (1.0%)
Cholecystectomy	34 (8.3%)
Common bile duct exploration	19 (4.6%)
Biliary-enteric anastomosis	45 (11.0%)
Pancreaticoduodenectomy	10 (2.0%)
Liver transplantation	7 (1.7%)
Liver resection	10 (2.4%)
Alimentary tract surgery	8 (2.0%)
Liver cancer radiofrequency ablation	3 (0.7%)
Liver cancer interventional therapy	2 (0.5%)
Other surgery	1 (0.2%)
Symptoms
Fever	375 (91.5%)
Abdominal pain	233 (56.8%)
Jaundice	7 (1.7%)