Table 2.

Logistic regression analysis of risk factors of drug-resistant K. pneumoniae bloodstream infections.

Characteristics	OR (95% CI)	p
History of ICU hospitalization
None	1
Have	2.32 (1.22–4.4)	0.01
History of surgery
None	1
Have	2.33 (1.26–4.32)	0.007
History of application of antibiotics
None	1
Have	2.02 (1.1–3.74)	0.024
Mechanical ventilation
None	1
Have	3.3 (1.56–6.97)	0.002
APACHE II score
≤10	1
>10	1.9 (1.06–3.42)	0.031
Hospitalization days before bloodstream infection
≤7 days	1
>7 days and ≤14 days	1.77 (0.88–3.55)	0.11
>14 days	4.34 (2.21–8.55)	<0.001

OR odds ratio, CI Confidence interval, ICU intensive care unit, APACHE Acute Physiology and Chronic Health Evaluation.