Among U.S. patients who regularly undergo hemodialysis, 20% had some degree of hesitancy about receiving a COVID-19 vaccine in a survey of 1,515 patients conducted during January and February 2021.
The most frequently cited concern associated with hesitancy over vaccination against the SARS-CoV-2 virus was with regard to possible adverse effects. This was cited by more than half of the patients who were concerned about being vaccinated.
Hesitancy rates were highest among people aged 44 years or younger, women, people who identified as non-Hispanic Black or non-Hispanic other (generally Native American or Pacific Islander), those with less than some college education, and those without a history of influenza vaccination, Pablo Garcia, MD, reported at the National Kidney Foundation (NKF) 2021 Spring Clinical Meetings.
Hesitancy or access?
Overall, however, the findings suggest that the main barrier to COVID-19 vaccine uptake is “access rather than hesitancy,” explained Dr. Garcia, a nephrologist at Stanford (Calif.) University. He predicts that this barrier will soon resolve, in part because of a Centers for Disease Control and Prevention program launched in March 2021 that is supplying COVID-19 vaccine to U.S. dialysis centers to administer to their patients.
“This will facilitate access to the vaccine” for patients who regularly receive hemodialysis, Dr. Garcia said during his presentation.
“Administering vaccines in dialysis clinics will help. Patients are already accustomed to receiving influenza vaccine in the clinic,” said Joseph A. Vassalotti, MD, a nephrologist at Mount Sinai Hospital, New York, and chief medical officer for the NKF.
Dr. Vassalotti cited the importance of protecting the vulnerable population of people who regularly receive hemodialysis. Among those patients, there was a 37% spike in all-cause mortality during peak weeks of the pandemic compared with similar periods during 2017-2019.
Any level of vaccine hesitancy is concerning
In an interview, he said, “Vaccination is the key to reducing this burden, so any level of vaccine hesitancy is concerning” with regard to patients who regularly undergo dialysis.
Hesitancy among patients who undergo dialysis appears to be less than in the general U.S. population, according to a series of surveys conducted from April through December 2020. In that series, hesitancy rates approached 50% in a sample of more than 8,000 people.
Hesitancy among people overall may have recently increased, at least for the short term, because of concerns over rare thrombotic events among people who receive certain types of COVID-19 vaccine, Dr. Vassalotti noted.
Dr. Garcia and associates conducted their survey from Jan. 8 to Feb. 11, 2021, among patients who regularly received hemodialysis at any of 150 randomly selected dialysis clinics that treat 30 or more patients and are managed by U.S. Renal Care. The study enrolled patients in 22 states. Most of the patients were aged 45-79 years; 30% were non-Hispanic White; 30% were Black, and 24% were Hispanic. The survey included 24 questions and took about 10 minutes to complete.
In reply to the statement, “If COVID-19 vaccine was proven safe and effective for the general population I would seek to get it,” 20% gave a reply of definitely not, probably not, or unsure; 79% answered either probably or definitely yes.
Another question asked about willingness to receive a vaccine if it was shown to be safe and effective for people receiving dialysis. In answer to that question, 19% said definitely not, probably not, or unsure.