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Table 1 Descriptive statistics for VIM-PA colonization data collected at Erasmus MC, 2010–2018

From: Routes of transmission of VIM-positive Pseudomonas aeruginosa in the adult intensive care unit-analysis of 9 years of surveillance at a university hospital using a mathematical model

 

No./median (IQR/percentage %)

Study period, days

3058

Admissions

10,408

Number of included patients

8814

Number of patients with readmissions

1128 (12.8%)

Observed number of patients with positive culture(s) for VIM-PA

62 (0.7%)

Number of patients with only negative cultures for VIM-PA

7487 (84.9%)

Number of patients with no cultures

1265 (14.4%)

Length of stay, days

3.0 (2.0–7.0)

 Observed colonized patients

13.0 (5.0–31.0)

 Observed uncolonized patients

3.0 (2.0–7.0)

Number of cultures* per included patient

6.0 (4.0–15.0)

Number of combined cultures per included patient

2.0 (1.0–4.0)

Number of combined cultures per admission

2.0 (1.0–3.0)

  1. VIM-PA, Verona Integron-encoded Metallo-beta-lactamase (VIM)-producing Pseudomonas aeruginosa; IQR, interquartile range
  2. *Throat and rectum samples counted individually
  3. Results of throat and recturm samples are combined. If both are negative, the combined culture result is negative. If one is positive, the combined culture result it positive