Policies and Practices for Multidrug Resistant Organisms (MDRO) in a

Transcription

Policies and Practices for Multidrug Resistant Organisms (MDRO) in a
Policies and Practices for Multidrug
Resistant Organisms (MDRO) in a
National Sample of NHSN Hospitals
Monika Pogorzelska, MPH
Elaine Larson, RN, PhD, FAAN, CIC
Patricia W. Stone, PhD, FAAN
Columbia University School of Nursing
This study is generously funded by the National Institute of Nursing Research (R01NR010107)
Background
• Identification of MDRO infections in high risk populations
is an important component of infection control (IC)
programs
• Published recommendations on use of contact
precautions and surveillance cultures are not consistent
• Paucity of national data on extent of implementation of
MDRO policies and practices in intensive care units
(ICUs)
Objectives
• To determine the range of MDRO policies and practices
employed by infection preventionists in ICUs
• To investigate whether screening for select MDRO
varied with certain hospital and IC department
characteristics
Methods: Enrollment
• As part of a larger study, a survey was sent to
select National Healthcare Safety Network
(NHSN) hospitals
• Facility administrators from NHSN hospitals
were invited to participate in the P-NICE survey
if:
• Hospital conducts NHSN HAI surveillance in an adult Medical,
Medical/Surgical, or Surgical ICU in 2007
• ICU has a minimum of 500 device days
• 441 hospitals were eligible
Survey Development
• On-line survey developed based on the seminal SENIC
study in which staffing of infection control programs and
intensity of surveillance, prevention and control activities
were measured in 1970’s (Haley et al.)
Methods: Survey Data
• Hospital Characteristics
• Teaching status
• Bedsize
• Geographic region
• Infection Control Department Characteristics
• Infection control staffing
• Years in NHSN
• Infection preventionist (IP) certification
• State mandatory reporting of infections
• Use of electronic surveillance system
• ICU Characteristics
• Type (medical, medical/surgical, surgical)
Methods: Survey Data
• Extent of implementation of policies and practices to reduce
MDRO rates:
•Screening ALL patients for MDROs upon ICU admission
•Screening patients for MDROs periodically after ICU admission
•Implementing presumptive isolation/contact precautions pending an MDRO
screen
•Implementing contact precautions for patients with MDRO positive cultures
•Cohorting patients colonized with MDROs in the same room
•For each ICU, the following was asked for each policy:
• Written policy was in place, if yes
• Was it monitored, if yes
• Proportion of time correctly implemented
• Routine screening for MRSA, VRE, C. difficile and MDRGNRs
Methods: Data Analysis
• Descriptive statistics of hospitals and infection control
departments
• Descriptive statistics of MDRO policies and practices
• Logistic Regressions to see if hospital and infection
control department characteristics predicted screening for
select MDROs (MRSA, VRE. C. difficile, MDRGNRs)
Results: Hospital Characteristics
Region
N
%
Northeast
109
44
South
66
26
Midwest
40
16
West
35
14
• 250 Hospitals (57% Response rate)
provided data on 414 ICUs
Sample (N = 250)
N
NHSN (N = 621)
%
N
%
Bed size
≤ 200
50
2
273
44
201-500
146
58
250
40
501-1000
49
20
96
16
> 1000
5
2
2
0.3
163
65
321
52
Teaching
Results: Infection Control Department
Characteristics
n
%
189
76
Yes
63
25
No
183
73
4
2
Mandatory Reporting (State)
Electronic Surveillance System
Missing
Median IP Staffing per bed
Median % IP Certified
Hospital Epidemiologist
Full-time
15
6
Part-time
105
42
1 IP Per 167 beds
50%
Length in NHSN/NNIS (years)
<1
33
13
1-3
78
31
<3
134
54
5
2
Missing
Results: Implementation of policies
ICUs Reporting Correct
Implementation of Policies All of the Time
N
%
Contact precautions for patients with positive
cultures for MDROs
219
83
Screen All patients for MDROs upon ICU
admission
94
72
Presumptive isolation/contact precautions pending
an MDRO screen
44
62
Screen periodically after ICU admission
42
48
Cohort patients colonized with MDROs in the
same room
41
47
Results: MDRO Routine screening
practices in ICUs (n = 414)
• MRSA 242 (58.6%)
• VRE 89 (21.6%)
• C. difficile 44 (10.7%)
• MDRGNRs 48 (11.6%)
• Other 28 (6.8%)
Results: Significant Predictors of
Screening for MRSA
Hospital Characteristics
OR
p-value
Mandatory Reporting
2.37
0.001
Teaching
1.67
0.020
Northeast 1.92
0.031
0.91
0.026
Region (as compared to the West)
Beds
Results: Significant Predictors of
Screening for VRE and C. difficile
VRE
C. difficile
Hospital Characteristics
OR
p-value OR
p-value
Total Hours of IC Staffing
1.03
0.034
0.99
0.014
Presence of Hospital
Epidemiologist
1.97
0.010
2.10
0.044
Region (as compared to the West)
Northeast 0.44
0.011
0.58
0.153
South 0.54
0.065
0.24
0.004
Midwest 0.12
0.001
0.13
0.009
Discussion
• Extent of implementation of MDRO policies and
practices varies in this select group of NHSN hospitals
• Screening for specific MDROs is associated with certain
hospital and IC department characteristics
Future Plans
• Other Analyses Based on Survey Results
• Multivariate analyses
• Examine association between different policies and practices for
Multidrug Resistant Organisms and MDRO HAI Rates
Thank You!
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