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. Author manuscript; available in PMC: 2023 Jun 22.
Published in final edited form as: Nat Med. 2023 Jan 31;29(3):623–631. doi: 10.1038/s41591-023-02241-7

Table A7.

More detailed reasons for non-vaccination by respondent age group

2022 2021
52–59 60–69 70–79 80+ 52–59 60–69 70–79 80+ Self-reported reason for non-vaccination
n=147 n=209 n=264 n=236 n=517 n=1060 n=1153 n=706
% % % % % % % %
5.4% 9.6% 6.8% 8.5% 9.5% 5.4% 5.6% 3.4% Side effect
1.4% 1.0% 0.4% 2.1% 1.7% 0.8% 0.7% 0.3% Effectiveness concern
0.7% 0.0% 0.0% 0.4% 0.2% 0.1% 0.3% 0.0% Vaccination is not free
4.1% 5.7% 7.2% 8.5% 2.7% 4.5% 6.2% 7.2% Long travel to the vaccine clinic
19.7% 23.9% 19.7% 11.4% 42.0% 34.7% 28.7% 17.0% Contraindications (2021)
Self-decision due to contraindications (2022)
40.8% 40.7% 34.1% 23.3% n/a n/a n/a n/a Rejected due to contraindications (2022)
2.7% 0.0% 0.8% 1.3% 1.5% 1.7% 1.2% 0.6% Concern of vaccine injection
2.7% 1.4% 3.4% 5.1% 2.5% 3.7% 3.7% 2.7% Unaware of the clinic location to get vaccinated
2.7% 3.8% 5.3% 3.4% 7.2% 10.6% 9.8% 11.0% No organized vaccination event in local communities
3.4% 6.2% 6.1% 8.9% 4.3% 7.2% 8.7% 11.8% Never heard of the vaccine
4.8% 4.3% 5.3% 7.2% 2.3% 2.5% 3.4% 5.7% Low mobility
17.7% 18.2% 11.4% 5.1% 15.3% 10.9% 8.8% 4.7% Health conditions
2.0% 1.0% 4.2% 6.8% 2.9% 2.2% 2.7% 2.7% Low chance of infection
0.0% 0.5% 0.0% 0.4% 1.0% 2.5% 2.0% 0.4% Vaccination already scheduled, but not received yet
1.4% 0.0% 1.9% 0.0% 7.2% 4.4% 1.3% 0.7% Being busy or absent
0.7% 0.0% 0.0% 0.0% 2.5% 3.1% 1.4% 1.4% Waiting for a smaller queue
7.5% 3.3% 3.4% 3.4% 3.1% 2.9% 3.5% 3.3% Frailty (not mentioning a specific condition)
4.1% 0.5% 1.9% 3.4% 1.2% 3.8% 6.9% 7.6% Rejected (for any reason not listed above)
0.0% 0.0% 2.7% 14.0% 0.6% 7.0% 14.7% 23.8% Being old (not mentioning health conditions or frailty)
1.4% 1.9% 4.2% 4.7% 4.4% 3.6% 3.4% 5.0% Unwilling (for any reason not listed above)

Note: The upper panel shows the ten reasons preset in the questionnaire. The lower panel shows the ten reasons categorized from open-ended answers provided by the respondents. The sum of shares can be greater than 100% because the interviewees may answer more than one category of reasons.