Appendectomy as a Risk Factor for Bacteremic Biliary Tract Infection Caused by Antibiotic-Resistant Pathogens

Table 1

Characteristics of patients with bacteremia from biliary tract infection.

Patients
Total	174
Age (mean)	70.2 ± 13.9
Male	106 (61%)
Pitt bacteremia score (mean)	1.22 ± 1.21
Site of biliary tract infection
Cholangitis	149 (86%)
Cholecystitis	25 (14%)
Cause of biliary tract infection
No malignancy	116 (67%)
Malignancy	58 (33%)
Comorbidity
Chronic kidney disease	47 (27%)
Diabetes mellitus	42 (24%)
Liver cirrhosis	21 (12%)
Medication
Proton pump inhibitor	43 (25%)
Corticosteroids	22 (13%)
Prior appendectomy	32 (18.4%)
Antibiotic use within the preceding 3 months	57 (33%)
Indwelling biliary device	56 (32%)
Hospitalization within the preceding 30 days	51 (29%)
Bilioenteric anastomosis or sphincterotomy	42 (24%)
30-Day mortality	14 (8%)