Skip to main content

Table 1 Comparing the cause and associated-factors of PLA over time

From: Epidemiology and risk factors for pyogenic liver abscess in the Calgary Health Zone revisited: a population-based study

Etiology Prevalence between 1999 and 2003 Prevalence between 2015 and 2017 p-value
Cryptogenic 56% (40/71) 29% (40/136) < 0.001
Biliary 24% (17/71) 34% (46/136) 0.09
    Choledocholithiasis 7% (5/71) 7% (10/136) 0.59
    Cholecystitis 7% (5/71) 15% (20/136) 0.08
    Ascending cholangitis 6% (4/71) 11% (15/136) 0.15
    Common bile duct stricture 4% (3/71) 4% (5/136) 0.56
    Pylephlebitis 1% (1/71) 10% (14/136) 0.01
    Cholangiocarcinoma 1% (1/71) 4% (6/136) 0.24
    Bile leak post-cholecystectomy 1% (1/71) 1% (2/136) 0.73
    Choledochojejunostomy 1% (1/71) 0% (0/136) 0.34
Nonbiliary 20% (14/71) 36% (49/136) 0.01
    Neutropenia 4% (3/71) 1% (1/136) 0.12
    Perforation 3% (2/71) 4% (5/136) 0.55
    Pneumonia/empyema 3% (2/71) 0% (0/136) 0.12
    Diverticulitis 1% (1/71) 12% (16/136) 0.006
    Perinephric abscess 1% (1/71) 0% (0/136) 0.34
    Endocarditis 1% (1/71) 0% (0/136) 0.34
    Dental abscess 1% (1/71) 1% (1/136) 0.57
    Appendicitis 1% (1/71) 1% (2/136) 0.73
    Traumatic liver injury 1% (1/71) 1% (1/136) 0.57
    Gastroenteritis/colitis 0% (0/71) 5% (7/136) 0.05
    Post-surgical complication 0% (0/71) 3% (4/136) 0.18
    Superinfected liver metastasis 0% (0/71) 2% (3/136) 0.28
    Pancreatitis 0% (0/71) 1% (2/136) 0.43
    Othera 0% (0/71) 1% (2/136) 0.43
  1. aOcclusion of colonic sinus tract, pharyngitis