tokens: Multivariable logistic regression analyses suggest an association between definite intent and previous COVID-19 infection ( OR : 2.86 ; 95 % CI : 1.71 - 4.78 ) , perceiving COVID-19 as serious ( OR : 1.93 ; 1.04 - 3.59 ) , the belief that vaccination would make them feel less worried about catching COVID-19 ( OR : 4.42 ; 2.25 - 8.68 ) , and concerns about vaccine affordability ( OR : 1.51 ; 1.01 - 2.25 ) .