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Volume 28, Number 8—August 2022
Research

COVID-19 Vaccination Intent and Belief that Vaccination Will End the Pandemic

Marion de VriesComments to Author , Liesbeth Claassen, Mattijs Lambooij, Ka Yin Leung, Kees Boersma, and Aura Timen
Author affiliations: National Institute for Public Health and the Environment, Bilthoven, the Netherlands (M. de Vries, L. Claassen, M. Lambooij, K.Y. Leung, A. Timen); Vrije Universiteit, Amsterdam, the Netherlands (K. Boersma, A. Timen)

Main Article

Table 3

Cumulative variance explained and partial dependence of 10 strongest determinants of COVID-19 vaccination intention in random forest model for residents of the Netherlands

Ten strongest determinants in random forest model Cumulative variance explained, % Partial dependence, lowest–highest value* Direction of relationship with vaccination intention
Vaccination, end of crisis 54 3.9–4.3 Positive
Vaccination, expectations of loved ones 62 4.0–4.4 Positive
Vaccination, developed too quickly 70 4.5–4.2 Negative
Vaccination, side effects well researched 72 4.1–4.3 Positive
Vaccination, approved therefore safe 72 3.9–4.2 Positive
Vaccination, good protection 73 4.2–4.5 Positive
Vaccination, new techniques are safe 73 4.2–4.4 Positive
Vaccination, live sooner without measures 74 4.2–4.3 Positive
Vaccination, behavior of loved ones 74 4.0– 4.3 Positive
Vaccination, possibility severe illness 74 4.4–4.3 Negative

*Interpretation of the partial dependence figures, first row (end of crisis) as an example: When all other determinants are kept constant, the lowest value for this belief (1, certainly not) matches a mean vaccination intention of 3.9 and the highest value of this belief (5, certainly yes) matches a mean vaccination intention of 4.3. Because many of the beliefs correlate strongly, and the partial dependence figures are controlled for all other determinants in the model, the partial dependence ranges are small. Partial dependence figures corresponding to all of the 10 best determinants values (1–5) are shown in the Appendix.

Main Article

Page created: June 15, 2022
Page updated: July 20, 2022
Page reviewed: July 20, 2022
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