Influenza Vaccination Rates Among Health Care Workers: Ambulatory Surgery Centers

Presented by: Shannon Stallings, MD, MPH Candidate
Primary Preceptor: Eileen Witherspoon, Health Policy Analyst,
Center for Quality Measurement & Reporting, MHCC
Secondary Preceptor: Theressa Lee, Director, Center for Quality
Measurement & Reporting, MHCC

Influenza has been associated with significant morbidity
and mortality
◦ 3,000 and 49,000 deaths per year in the United States1

The Centers for Disease Control and Prevention, the
Advisory Committee on Immunization Practices, and the
U.S. Department of Health and Human Services
recommend vaccination of healthcare workers (HCW)2
◦ Increased risk of exposure to the influenza virus as part of
their occupation
◦ In contact with the patient populations most at risk of
developing severe complications
Image Source: http://wisequacks.org/wp2/?p=2849

The Maryland Health Care Commission (MHCC)
has been tracking HCW influenza vaccination
rates since the 2008-2009 season
◦ Regulatory agency designed to “promote informed
decision making…[and] increase accountability”3


Data from acute care hospitals has been
comprehensively organized, analyzed, and
publicly reported since the 2009-2010 season
This project will instead examine influenza
vaccination rates among HCW in ambulatory
surgical centers, which have not received the
same attention

2008-2009 Influenza season

2009-2010 Season

2013-2014 Season

2014-2015 Season
◦ MHCC begins collecting vaccination data from acute care
hospitals4
◦ MHCC begins publically reporting data from acute care
hospitals
◦ MHCC begins collecting data from ambulatory surgical
centers, but does not publicize this information
◦ Maryland acute care hospitals begin reporting through the
National Health Safety Network (NHSN), as required by the
Centers for Medicare and Medicaid services (CMS)5
◦ Maryland ambulatory surgical centers begin reporting
through NHSN, as required by CMS

Data retrieved from the annual Maryland
Freestanding Ambulatory Surgical Facility
Survey
◦ Data from 2009-2010 season to 2013-2014
season

Calculation of rates:
◦ Employee: all persons that receive a direct paycheck
from the healthcare facility regardless of clinical
responsibility or patient contact
Number of full-time and part-time
employees receiving either the
Rate = influenza vaccination shot or FluMist
Total Number of full and part-time
employees
X 100%

Five question
supplemental survey
developed
◦ Sent via email to 82
members of Maryland
Ambulatory Surgery
Association
◦ Received 13 responses
Image Source: Mankoff, R. (2013). Nothing to fear but fear itself. The New Yorker. Retrieved: http://www.newyorker.com/cartoons/bob-mankoff/nothing-to-fear-but-flu-itself
Year
HCW Influenza Vaccination Rates
2013
72.41
2012
71.29
2011
64.08
2010
53.4
2009
59.3
0
10
20
30
40
Percentage
50
60
70
80
Yearly Vaccination Rates
Year
2009
(n=304)
2010
2011
(n=278)
2012
2013
(n=293) (n=297)
(n=266)
(n=243)
# HCW
1767
vaccinated
1469
1214
1975
2220
2328
# HCW
total
2980
2751
2328
3082
3114
3215
Rate
59.30%
53.40%
52.15%
64.08%
71.29%
72.41%
ASCs Reporting Zero HCW Vaccinated
35
30.83
Percentage
30
25
20
15
18.42
19.06
10
9.9
5
12.12
0
2009
2010
2011
Year
2012
2013
Percentage of HCW Declining Vaccination
30.00
Percentage
25.00
24.36
20.00
24.08
20.03
20.42
15.52
15.00
10.00
5.00
0.00
2009
2010
2011
Year
2012
2013
Reasons for Declination
90.00
80.00
83.06
84.52
78.98
79.40
76.95
Percentage
70.00
60.00
50.00
Medical
40.00
Religious
30.00
20.00
16.94
10.00
0.00
0.00
2009
14.97
0.51
2010
16.85
18.24
4.18
2.36
2011
Year
2012
21.84
1.20
2013
Other
Mandatory Policy Composition
120
Percentage
100
80
60
76.98
69.97
67
Policy
40
20
0
No Mandatory
Mandatory Policy
23.02
30.03
33
2011
2012
2013
Year
Mean HCW Vaccination Rates of Mandatory vs Nonmandatory Policies
100
90
Percentage
80
92.78
92.49
88.31
70
60
50
40
52.56
62.61
61.54
Mandatory
30
Non-Mandatory
20
10
0
2011
2012
Year
2013
HCW Vaccination Rates: ASCs vs Hospitals in Maryland
6
110
100
96.40
90
80
Percentage
70
60
50
78.10
81.40
96.50
87.80
75.2
71.29
72.41
64.08
59.30
ASC
Hospitals
52.15
40
National Average
30
20
10
0
2009
2010
2011
Year
2012
2013

If “Other” was selected, what reasons fall into
this category?
◦
◦
◦
◦
◦
“Fear of becoming ill”
“I dislike needles”
“I never had the flu and don’t expect to get it”
“Ethical”
“Pregnant”

If so, does this policy have any stipulations
if employees do not receive the influenza
vaccine?
◦ Termination of employment
◦ Wear a mask
Image Source: CDC. (2014). Ancillary Respirator Information. Retrieved: http://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/respsource3healthcare.html

Did your facility use the NHSN Health
Personnel Vaccination Module to report
healthcare worker vaccination rates for the
year 2014-2015?
◦
◦
◦
◦
6 of 9 responding facilities use the NHSN Module
“Set up…was labor intensive and time consuming”
“Registration was cumbersome”
“Application is rather tedious”

Data
◦ Changing timeframes
◦ Multiple calculation methods
◦ No separation of ASCs from other outpatient
settings in national rates
◦ Difficulty making comparisons across states or
nationally

Supplemental Survey
◦ Very small sample size
◦ Limited generalizability


Fluctuating number of employees
Fewer resources than hospitals
◦ Many facilities with small numbers of employees
 In 2013, 61 of 297 facilities with less than 5
employees

HCW attitudes towards influenza vaccination




Vaccination rates among HCW in ASCs are on
par with reported national rates among all
HCW
BUT well below those of Maryland acute care
hospitals
Perhaps lessons learned from raising the
rates in Maryland acute care hospitals can be
applied to ASCs
However, ASCs face unique challenges and
barriers that must also be addressed


NHSN reporting system
◦ Standardized methodology
◦ Improved comparisons
◦ Streamlining registration process may be beneficial
Currently, Maryland does not have a state-wide
mandatory policy requiring HCW flu vaccination
in place
◦ Adoption of a state-wide policy may assist in raising ASC
rates to those of acute care hospitals
•
Public reporting of rates and mandatory policy
adoption may encourage increased rates through
peer comparison and competition or compliance
1) Pitts, S.I., Maruther, N.M., Millar, K.R., Perl, T. M., & Segal, J. (2014). A
Systematic Review of Mandatory Influenza Vaccination in Healthcare
Personnel. American Journal of Preventive Medicine, 47(3), 330-340.
2) National Vaccine Advisory Committee. (2012). Recommendations on
strategies to achieve the healthy people 2020 annual influenza vaccine
coverage goal for health care personnel. [Report]. Retrieved from
http://www.hhs.gov/nvpo/nvac/influenza_subgroup_final_report.pdf
3) Maryland Health Care Commission. (n.d.). Welcome to the Maryland
Health Care Commission. Retrieved from
http://www.mhcc.maryland.gov/
4) Maryland Health Care Commission. (2013). Healthcare Worker Influenza
Vaccination Issue Brief.
5) Centers for Disease Control and Prevention. (2014). Healthcare Facility
HAI Reporting Requirements to CMS via NHSN– Current or Proposed
Requirements. Retrieved from
http://www.cdc.gov/nhsn/PDFs/CMS/CMS-Reporting-Requirements.pdf
6) Centers for Disease Control and Prevention. (2014.). Influenza
Vaccination Information for Health Care Workers. Retrieved from
http://www.cdc.gov/flu/healthcareworkers.htm




Eileen Witherspoon, MHCC
Theressa Lee, MHCC
Wenwan Lu, MSPH Candidate
Jennifer Le, JHSPH