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Table 1 Overview of all collected variables, the method used, outcome variables that are visualized in the risk profile and improvement plot, and breakpoints for the risk classification

From: The infection risk scan (IRIS): standardization and transparency in infection control and antimicrobial use

     

Risk classification

variables

Hospital

NH^

method

Outcome variable

Low

Intermediate

High

Risk profile

 

 Severity of underlying diseases, according to the McCabe score

X

 

Prevalence survey

(file research & interview)

The percentage per category is presented in the risk profile

N.A.&

 Independency scale according to Katz-score

 

X

Prevalence survey

(file research & interview)

The percentage per category is presented in the risk profile

N.A. &

 indwelling medical devices, including venflon not in use

X

 

Prevalence survey

(file research & interview)

Percentage

(n=total number inclusions)

≤ 15

>15 and ≤50

> 50

 

X

≤ 5

>5 and ≤10

> 10

 Antibiotic use

X

 

Prevalence survey

(file research & interview)

Percentage

(n=total number inclusions)

≤ 15

>15 and ≤50

> 50

 

X

≤ 5

>5 and ≤10

> 10

 Rectal carriage of ESBL-Eǂ and CPEǂǂ

X

X

Prevalence survey (culture of faeces or perianal swab)

Percentage

(n=total number patients of whom faeces was cultured)

≤ 7

>7 and ≤11

> 11

Improvement plot

       

 Inappropriate use of medical devices

X

X

Prevalence survey

(file research & interview)

Percentage (n=total number of patients with medical devices in use)

≤ 15

>15 and ≤25

>25

 Inappropriate use of antibiotics

X

X

Prevalence survey (file research & interview)

Percentage (n=total number of patients administered one or more antibiotics)

≤ 15

>15 and ≤25

>25

 Transmission of ESBL-E and CPE

X

X

Prevalence survey (molecular typing of ESBL-E and CPE)

Transmission = 2 or more identical ESBL-E and CPE with an epidemiological link

No transmission

No transmission

Transmission

 Hand hygiene non-compliance

X

 

Direct observations of hand hygiene moments per unit

% non-compliance overall

(n>200 moments)

≤ 40

>40 and ≤60

>60

 Environmental contamination

X

X

ATP detection on pre-defined surfaces/objects per ward.

Per tested surface/object, RLU is converted to a score (1, 2, 3 or 4)

Total score per ward/setting

(in case of multiple wards within 1 setting, breakpoints will be adjusted as needed)

≤ 4

≤ 3

>4 and ≤12

>3 and ≤9

>12 ZH

>9 VH

 Shortcomings in infection control preconditions

X

X

10 preconditions are observed per ward

Score from 1 to 10

≤ 1

>1 and ≤3

>3

 Personal hygiene of healthcare workers

X

X

20 nurses and other healthcare employees, per ward, were checked for compliance with the dress code.

Score from 1 to 20 (in case of less observations, breakpoints will be adjusted as needed)

≤ 1

>1 and ≤4

>4

  1. ^NH = Nursing Home;
  2. &N.A.=not applicable; ǂ ESBL-E = Extended Spectrum Beta-Lactamase producing Enterobacteriaceae
  3. ǂǂCPE-E = Carbapenemase producing Enterobacteriaceae