Table 2 Odds ratio estimates for invasive infection using the generalized linear mixed-effects model (GLMM). n = 732 complete observations with 162 events. OR = odds ratio; CI = confidence interval; CCI = Charlson Comorbidity Index

K. oxytocagroupvs. K. pneumoniaegroup

2.39

[1.05,5.53]

2.01

0.044

K. oxytocavs.K. michiganensis

0.75

[0.42,1.34]

− 0.97

0.33

K. oxytoca vs. K. grimontii

0.64

[0.30,1.36]

− 1.15

0.252

K. pneumoniae vs. K. variicola

1.08

[0.69,1.65]

0.35

0.724

K. pneumoniae vs. K. quasipneumoniae

0.64

[0.35,1.15]

− 1.44

0.149

CCI

1.14

[1.04,1.25]

2.95

0.003

Age (centred, 10 years increase)

0.84

[0.75,0.95]

− 2.78

0.005

Female (ratio)

0.54

[0.37,0.79]

− 3.17

0.002

Immunosuppression

0.5

[0.29,0.86]

− 2.5

0.012

Resistance to 3rd-generation cephalosporins

1.31

[0.44,3.74]

0.5

0.618

Antibiotic treatment at entry or during hospitalization

3.11

[1.44,6.49]

2.92

0.003