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Table 3 Relative Important Index (RII) for concerns regarding COVID-19 vaccine among hesitant respondents (n = 236)

From: A survey on COVID-19 vaccine acceptance and concern among Malaysians

Item Concerns regarding COVID-19 vaccine RII
1 Lack of information 0.90
2 Side effects 0.98
3 Not safe 0.92
4 Not effective 0.82
5 COVID-19 is not dangerous 0.61
6 Fear of injection 0.58
7 Against vaccines in general 0.64
8 Religious reasons 0.60
9 Cultural reasons 0.53
10 Believe in traditional remedies 0.59