ABSTRACT
Aims: Vaccination uptake is the principal focus of the world-wide response to the COVID-19 pandemic. Vaccine hesitancy remains a critical issue. Our aim was to ascertain rates and reasons for vaccine hesitancy in people with breast cancer (BC) in Australia. Method(s): Between June and October 2021, an anonymous online survey was conducted among people with solid organ cancer treated at nine Australian treatment centres. Data collected included demographics and clinical characteristics. Vaccine hesitancy and related beliefs were assessed using the Oxford COVID-19 Vaccine Hesitancy Scale, the Oxford COVID-19 Vaccine Confidence and Complacency Scale (OCVCCS), and the Disease Influenced Vaccine Acceptance Scale-Six. Descriptive statistics, chi-squared and linear regression were used. Results for the BC subgroup are reported. Result(s): The BC subgroup (N = 986, mean age 58.4 years, 99% female) comprised 36.6% of the responses in the solid cancer population (N = 2691). Most (76%) were treated at metropolitan centres and 64% were receiving ongoing treatment. Early BC was more commonly reported than metastatic BC (77% vs. 23%). Overall, 82% self-reported at least one COVID-19 vaccine dose. Unvaccinated participants were more likely to diagnosed with BC for a shorter time (<2 years (22.1%) vs >=2 years (14.5%), p = 0.003). Participants with metastatic BC were more likely to be unvaccinated and report greater disease-related vaccine concerns and hesitancy, when compared with participants with early BC (all p < 0.05). When compared with participants with all other solid cancers, participants with BC reported more negative attitudes towards COVID-19 vaccine side-effects (OCVCCS Side-Effects subscale mean scores: 5.19 (SD 1.91) vs. 5.46 (SD 1.82), p < 0.001). Conclusion(s):Despite a relatively high rate of self-reported vaccination, people with BC reported lower vaccine confidence when compared with all other solid cancers. A better understanding of these inequalities, and strategies to address vaccine confidence in people with BC, particularly those with metastatic BC, should be developed.
ABSTRACT
Introduction People with cancer are particularly vulnerable to COVID-19 and have been prioritised in vaccination programs. This group has reported concerns regarding the interactions between vaccines, cancer and anti-cancer treatments. We explored vaccine hesitancy in the disease-specific context of cancer Methods An online survey was conducted in Australia from June to October 2021. We developed a six-item scale assessing vaccine concerns in the context of chronic disease (Disease Influenced Vaccine Acceptance Scale DIVAS-6). Results There were 2691 evaluable responses;59% female, 71% from metropolitan areas, 36% with metastatic disease and 56% on current anti-cancer treatment. Commonest cancer types included breast 36.6%, genitourinary 18.6% and gastrointestinal 18%. Self-reported vaccine uptake was 80%. Overall, 57% agreed with the statement 'cancer makes me more worried about being infected with COVID-19.' Their doctor's recommendation regarding the vaccine was considered important by 79% of participants. 67% agreed with the statement that 'cancer means having the vaccine is more important.' This was different between vaccinated and unvaccinated participants (72% vs 46%). Unvaccinated participants had more concerns regarding vaccine efficacy (60% vs 34%), side effects (72% vs 29%) and interactions with anticancer treatment (53% vs 18%). Conclusions People with cancer have disease-specific concerns regarding COVID-19 vaccines. Use of DIVAS-6 can guide communication in this medically vulnerable population.
ABSTRACT
Introduction People with blood cancers are prioritised to receive COVID-19 vaccination. However, it is unclear how prevalent vaccine hesitancy is in this group. This analysis investigated vaccine uptake and vaccine hesitancy in people with blood cancers in Australia. Methods An online survey was conducted at nine health services in Australia from June to October 2021. Participant demographics and vaccination status were recorded. Vaccine hesitancy was assessed using the Oxford COVID-19 Vaccine Hesitancy Scale (OHS). Regression was used to examine whether clinico-demographic factors predicted the OHS score and vaccination status. Results Of the 869 participants, the mean age was 64.2 years, and 43.6% (n = 379) were female. A high proportion of participants had received at least one COVID-19 vaccine dose (85.3%, n = 741). Increasing age, speaking English as a first language, attending a regional health service, longer time since diagnosis and not currently receiving treatment were associated with being vaccinated. Participants who reported higher vaccine hesitancy were younger in age, more likely to have vocational qualifications and speak English as a second language. Conclusions There is a high rate of vaccination uptake in patients with blood cancers. However, younger patients and patients from culturally and linguistically diverse backgrounds appear to have lower vaccination uptake rates and higher levels of vaccine hesitancy. Tailored counselling may reduce the risk of adverse events due to COVID-19 infection.