Taking a machine learning approach to optimize prediction of vaccine hesitancy in high income countries.
Sci Rep
; 12(1): 2055, 2022 02 08.
Article
in English
| MEDLINE | ID: covidwho-1747191
ABSTRACT
Understanding factors driving vaccine hesitancy is crucial to vaccination success. We surveyed adults (N = 2510) from February to March 2021 across five sites (Australia = 502, Germany = 516, Hong Kong = 445, UK = 512, USA = 535) using a cross-sectional design and stratified quota sampling for age, sex, and education. We assessed willingness to take a vaccine and a comprehensive set of putative predictors. Predictive power was analysed with a machine learning algorithm. Only 57.4% of the participants indicated that they would definitely or probably get vaccinated. A parsimonious machine learning model could identify vaccine hesitancy with high accuracy (i.e. 82% sensitivity and 79-82% specificity) using 12 variables only. The most relevant predictors were vaccination conspiracy beliefs, various paranoid concerns related to the pandemic, a general conspiracy mentality, COVID anxiety, high perceived risk of infection, low perceived social rank, lower age, lower income, and higher population density. Campaigns seeking to increase vaccine uptake need to take mistrust as the main driver of vaccine hesitancy into account.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Mass Vaccination
/
COVID-19 Vaccines
/
Vaccination Hesitancy
Type of study:
Observational study
/
Prognostic study
/
Randomized controlled trials
Topics:
Vaccines
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
North America
/
Asia
/
Europa
/
Oceania
Language:
English
Journal:
Sci Rep
Year:
2022
Document Type:
Article
Affiliation country:
S41598-022-05915-3
Similar
MEDLINE
...
LILACS
LIS