Epidemiology and Health

COVID-19: Original Article

Predictors of COVID-19 booster vaccine hesitancy among fully vaccinated adults in Korea: a nationwide cross-sectional survey: Yunha Noh, Ju Hwan Kim, Dongwon Yoon, Young June Choe, Seung-Ah Choe, Jaehun Jung, Sang-Won Lee, Ju-Young Shin; Epidemiol Health. 2022;44:e2022061. Published online July 22, 2022; DOI: https://doi.org/10.4178/epih.e2022061

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Abstract Summary PDF Supplementary Material

Abstract

OBJECTIVES
This study explored predictors of coronavirus disease 2019 (COVID-19) booster hesitancy among fully vaccinated young adults and parental COVID-19 vaccine hesitancy for their children.

METHODS

This cross-sectional study administered an online survey from December 2 to December 20, 2021. We enrolled participants aged 18-49 years, for whom ≥2 weeks had passed after their initial COVID-19 vaccination. We estimated odds ratios (ORs) with 95% confidence intervals (CIs) using multivariate logistic regression to evaluate factors associated with booster/vaccine hesitancy.

RESULTS

Among the 2,993 participants, 48.8% showed hesitancy (wait and see: 40.2%; definitely not: 8.7%). Booster hesitancy was more common among women (OR, 1.25; 95% CI, 1.05 to 1.50), younger people (OR, 1.44; 95% CI, 1.17 to 1.77), those with a lower education level (OR, 2.05; 95% CI, 1.10 to 3.82), those who received the mRNA-1273 vaccine type (OR, 2.01; 95% CI, 1.65 to 2.45), and those who experienced serious adverse events following previous COVID-19 vaccination (OR, 2.03; 95% CI, 1.47 to 2.80). The main reasons for booster hesitancy were concerns about safety (54.1%) and doubts about efficacy (29.8%). Among the 1,020 respondents with children aged <18 years, 65.8% were hesitant to vaccinate their children against COVID-19; hesitancy was associated with younger parental age, education level, the type of vaccine the parent received, and a history of COVID-19 infection.

CONCLUSIONS

Concerns about the efficacy and safety of COVID-19 vaccines were the major barrier to booster acceptance. The initial COVID-19 vaccine type (mRNA-1273), young age, gender (women), a low education level, and adverse events after the first COVID-19 vaccine were key predictors of booster hesitancy.

Summary

Korean summary
본 연구는 국내 19-49세 성인을 대상으로, 코로나19 3차접종 의향과 그들의 18세 미만 자녀에 대한 코로나19 기초접종 의향을 조사하고, 코로나19 백신접종 기피와 관련된 요인을 파악하고자 하였다. 2021년 12월 2일부터 20일까지 온라인 설문조사를 통하여 자료를 수집하였으며, 연구대상자는 코로나19 기초접종을 완료한 후 2주 경과한 19-49세 성인으로, 전국 대표성을 확보하기 위해 성별, 연령, 지역별로 층화하여 모집하였다. 코로나19 3차접종 기피율은 약 48.8%로 나타났으며, 접종 기피 관련 영향요인으로는 젊은 연령층, 여성, 낮은 교육수준, 기초접종 백신 종류, 기초접종 후 중증 이상반응 경험이 포함되었으며, 18세 미만 자녀에 대한 코로나19 기초접종 기피율은 65.8%로, 관련 영향요인으로는 젊은 부모 연령, 교육수준, 부모의 기초접종 백신 종류, 코로나19 감염 과거력이 포함되었다.

Key Message
Concerns about the safety and efficacy of COVID-19 vaccines were the major barrier to booster acceptance; the initial COVID-19 vaccine type (mRNA-1273), younger age, gender (women), a low education level, and adverse events after the first COVID-19 vaccine were key predictors of booster hesitancy.

Citations

Citations to this article as recorded by

Why Some People Are Hesitant to Receive COVID-19 Boosters: A Systematic Review
Yam B. Limbu, Bruce A. Huhmann
Tropical Medicine and Infectious Disease.2023; 8(3): 159. CrossRef
COVID-19 Vaccine Booster Hesitancy in Malaysia: A Web-Based Cross-Sectional Study
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Factors associated with parental intention to vaccinate their preschool children against COVID-19: a cross-sectional survey in urban area of Jakarta, Indonesia
Theresia Santi, Badriul Hegar, Zakiudin Munasir, Ari Prayitno, Retno Asti Werdhani, Ivo Novita Sah Bandar, Juandy Jo, Ruswati Uswa, Ratna Widia, Yvan Vandenplas
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Predictors of COVID-19 Vaccine Hesitancy Among Parents of Children Aged 5–11 Years in Korea
Ju Hwan Kim, Dongwon Yoon, Yunha Noh, Jaehun Jung, Young June Choe, Ju-Young Shin
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Parental concerns about COVID-19 vaccine safety and hesitancy in Korea: implications for vaccine communication
Hye-Kyung Cho, Hyunju Lee, Young June Choe, Shinkyeong Kim, Sujin Seo, Jiwon Moon, Eun Hwa Choi, Geun-Yong Kwon, Jee Yeon Shin, Sang-Yoon Choi, Mi Jin Jeong, Myoungsoon You
Epidemiology and Health.2022; 45: e2023004. CrossRef

Original Article

Why do some Korean parents hesitate to vaccinate their children?: Kyujin Chang, Soon Young Lee; Epidemiol Health. 2019;41:e2019031. Published online July 9, 2019; DOI: https://doi.org/10.4178/epih.e2019031

13,824 View
295 Download
16 Web of Science
24 Crossref

Abstract Summary PDF Supplementary Material

Abstract

OBJECTIVES
Vaccinations for infectious diseases are opposed despite their achievement, and this opposition has recently been revealed in Korea. However, research in Korea has not been vigorous. The authors studied why some Korean parents hesitate to vaccinate their children by applying the health belief model.

METHODS

Parents who hesitate to vaccinate and parents who do not were surveyed in alternative education preschools and elementary schools. They were classified into four types of hesitancy and statistically compared.

RESULTS

Among the 129 subjects, 43 vaccinated without hesitancy, 20 vaccinated on time with hesitancy, 32 vaccinated with a deliberate delay of one month or longer, and 34 did not vaccinate. Vaccination increased with an increase in the awareness that severe outcomes can occur when unvaccinated. Concerns about adverse reactions from vaccinations or direct/indirect experiences affected refusal. Furthermore, perceptions of the lack of meaningfulness of vaccinations, distrust of policy and safety management, influence of leaders or activists in joined organizations, and experts of Korean traditional or alternative medicine affected refusal. Explanations by doctors, text messages and mails from institutions, and concerns about disadvantages caused by not complying with government policies increased vaccination.

CONCLUSIONS

The reasons for vaccine hesitancy and acceptance were similar to the results of international research. Health authorities and professionals should communicate sufficiently and appropriately with hesitant parents and find ways to rationally resolve social conflicts. However, this sample was small and there is little Korean research, so more in-depth and diverse researchs are needed.

Summary

Korean summary
한국에도 있는 일부 소아 예방접종 망설임 부모들이 왜 그렇게 생각하고 결정하는지, 대안교육시설에서 129명을 대상으로 연구하였다. 예방접종 부작용 우려나 경험, 의미 격하, 정책 및 안전관리 불신, 관련 활동가, 한의학이나 대체의학 전문가가 미접종에 영향을 주었다. 보건관계자들은 망설임 부모들과 충분하고 적절한 의사소통을 하여, 사회적 갈등을 합리적으로 해소하는 방안을 찾아야 한다.

Citations

Citations to this article as recorded by

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