Skip to main content

Table 3 Multivariate analysis using the Cox model

From: Risk factors and the resistance mechanisms involved in Pseudomonas aeruginosa mutation in critically ill patients

Significant covariates

Risk ratio

CI 95%

p

Duration of ventilation > 24 days

4.29

1.94- 9.49

0.0003*

Initial resistance

0.36

0.18- 0.71

0.0031*

Non-model variables

 Ceftazidime after P. aeruginosa

1.66

0.82- 3.37

0.160

 Meropenem after P. aeruginosa

1.17

0.57- 2.40

0.674

  1. * signify that it is considered to be statistically significant with p < 0.05