Table 1.

Multivariable logistic regression model results estimating associations between explanatory variables and E. coli BSI 30-day mortality^a

Variable	aOR	95% CI	p-value
Region			< 0.001b
Finland	1.00	referent
Calgary	1.52	1.36–1.71	< 0.001
Sherbrooke	0.87	0.64–1.20	0.403
Skaraborg	1.31	1.09–1.57	0.004
Western interior	1.69	1.31–2.18	< 0.001
Location of Onset
Community-onset	1.00	referent
Hospital-onset	2.44	2.25–2.66	< 0.001
3GC-R
Susceptible	1.00	referent
Resistant	1.37	1.20–1.55	< 0.001
Sex
Female	1.00	referent
Male	1.77c	1.52–2.05	< 0.001
Age Category
< 70-years-old	1.00	referent
≥ 70-years-old	2.21c	1.95–2.52	< 0.001
Interaction - Sex and Age
Male and ≥ 70	0.73c	0.62–0.87	< 0.001

Abbreviations: BSI Bloodstream infection, aOR Adjusted odds ratio, CI Confidence interval

^aModel fits the data based on Hosmer-Lemeshow goodness-of-fit test (p = 0.653)

^bOverall p-value for variable estimated using a likelihood ratio test

^cExponentiated coefficients are not true aOR due to interaction term – see contrasts in Table 2