Anaerobic coverage as definitive therapy does not affect clinical outcomes in community-onset bacteremic biliary tract infection without anaerobic bacteremia

Table 4 Multivariate analysis of risk factors associated with treatment failure adjusted by propensity score^a

Variables	OR	95%CI	p value
Age	1.01	0.96–1.06	0.730
Sex	1.27	0.33–4.90	0.724
K. pneumoniae bacteremia	4.90	1.32–18.17	0.018
Healthcare-associated bacteremia	4.18	1.20–14.60	0.025
Definitive therapy without anti-anaerobic therapy	0.92	0.18–4.67	0.916
Propensity score^a	1.60	0.03–98.79	0.822

^aPropensity score is the predicted probability of receiving treatment with anaerobic coverage, modelled by logistic regression with variables including age, sex, underlying disease (liver cirrhosis, diabetes mellitus, congestive heart failure, chronic renal failure, chronic obstructive pulmonary diseases, and malignancy), and Pitt bacteremia score

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