Table 3.

Independent predictive factors associated with CR-GNB sepsis; multivariate logistic regression

Risk factors for sepsis by CR-GNB	CR-GNB cases (n = 60)	Control group (n = 94)	Odds ratio	95% CI	pa value
Previous infection, n (%)	46 (77)	31 (33)	4.28	1.77–10.35	0.001
Mechanical ventilation, n (%)	56 (93)	58 (62)	4.21	1.17–15.18	0.028
Use of carbapenem, n (%)	48 (80)	32 (34)	3.42	1.37–8.52	0.008
Length of hospital stay (days), median (range)	26 (1–375)	10 (0–143)	1.03	1.01–1.05	0.007

Abbreviations: CR-GNB carbapenem-resistant Gram-negative bacilli, CI confidence interval

^aWald test for logistic regression, p significant < 0.05, accuracy of 80% for CR-GNB model