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Hepatitis C performance measure on hepatitis A and B vaccination: missed opportunities?
Bridget Hernandez1, Noelle K Hasson, Ramsey Cheung
1Pharmacy Service, VA Palo Alto Health Care System, Palo Alto, California 94304, USA.
Insights
This study found high adherence to hepatitis A and B vaccination guidelines in chronic hepatitis C patients. Missed opportunities remain the primary barrier to complete vaccination coverage.
Area of Science:
- Hepatology
- Infectious Diseases
- Vaccinology
Background:
- Vaccination against hepatitis A virus (HAV) and hepatitis B virus (HBV) is recommended for patients with chronic hepatitis C (CHC).
- Physician performance measures have been adopted to track vaccination rates in CHC patients.
- This study evaluated adherence to these new vaccination performance measures.
Purpose of the Study:
- To determine adherence to physician performance measures for HAV and HBV vaccination in patients with chronic hepatitis C.
- To identify reasons for non-adherence to vaccination recommendations in this patient population.
Main Methods:
- Retrospective analysis of serology and immunization records from 2000 to 2007.
- Inclusion of 2,968 patients with detectable hepatitis C virus (HCV) RNA.
- Calculation of vaccination performance measure adherence rates for HAV and HBV.
Main Results:
- Overall adherence rates were 71% for HAV, 70% for HBV, and 62% for both.
- Among susceptible patients, 74% received HAV vaccination and 71% received HBV vaccination.
- Major reasons for non-adherence included missed opportunities (41%) and vaccination outside the healthcare system (22%).
Conclusions:
- Adherence to HAV and HBV vaccination recommendations in CHC patients is high and improving.
- Missed opportunities represent the main barrier to achieving optimal vaccination rates.
- Selective vaccination strategies may be effective in specific populations, such as veterans.
Objectives:
Prevention of hepatitis A virus (HAV) and hepatitis B virus (HBV) infection in patients with chronic hepatitis C (CHC) through vaccination is endorsed by all major professional societies. This study was conducted to determine adherence to the recently adopted physician performance measure on HAV and HBV vaccination.
Methods:
This was a retrospective study. Hepatitis A and B serology data and immunization records between 2000 and 2007 from CHC patients with detectable hepatitis C virus (HCV) RNA were analyzed.
Results:
A total of 2,968 CHC patients were included in the study. Of these, 2,143 patients (72%) were tested for susceptibility to HAV, of which 53% had immunity. Of the non-immune patients, 746 (74%) were vaccinated as well as an additional 218 without prior testing. For HBV, 2,303 patients (78%) were tested for immunity and 782 (34%) were immune. Of the susceptible patients, 1,086 (71%) were vaccinated as well as an additional 197 patients without prior testing. The overall vaccination performance measure adherence rate was 71% for HAV, 70% for HBV, and 62% for both HAV and HBV. Random review of 176 charts found the major reasons for non-adherence were missed opportunity (41%), change of health care system (31%), and documented vaccination outside our health care system (22%).
Conclusions:
Our study found a high and improved adherence to the recommendations, but missed opportunity was still the main reason of non-adherence. This study also supported the strategy of selective vaccination in the veteran population.
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