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. 2022 Jun 20;11:100186. doi: 10.1016/j.jvacx.2022.100186

Table 5.

Differences between AD and HC in COVID-19 vaccination status and willingness to get vaccinated.

AD
n = 59
HC
n = 59
Statistics p
Subjective knowledge about COVID-19 vaccination %
Very low
Rather low
Neither high nor low
Rather high
Very high


3.4
8.5
20.3
49.2
18.6


0
6.8
23.7
45.8
23.7
X2(4) = 2.70 0.610
Already vaccinated % 28.3 52.0 X2(1) = 6.03 0.014
Option for a vaccination in the past and refusal % 10.2 15.3 X2(1) = 0.69 0.407
Willingness for vaccination against COVID-19 M (SD)a 2.69 (0.76) 2.88 (0.76) T(1 1 6) = 1.41 0.161
Internal motivated willingness to get vaccinated M (SD) −0.12 (0.96) 0.08 (1.03) T(1 1 4) = 1.10 0.273
External motivated willingness to get vaccinated M (SD) 0.07 (0.94) −0.01 (0.86) T(1 1 4) = −0.48 0.635
Either already vaccinated of willing to get vaccinated as soon as possible M (SD) b 82.14 (33.84) 86.41 (30.22) T(1 1 6) = 0.72 0.471
Willingness for vaccination of the currently not vaccinated participantsb
As soon as possible
Within the next year
Within the next five years
n = 38

78.13 (36.87)
80.71 (35.09)
83.66 (34.28)
n = 23

76.00 (35.80)
79.70 (34.83)
82.91 (30.73)


T(59) = −0.22
T(59) = −0.11
T(59) = −0.09


0.826
0.913
0.932

Note. AD = affective disorders; HC = healthy controls; M = mean; SD = standard deviation; a = mean of five-point likert scale: “the benefit of the COVID-19 vaccination clearly outweighs the risk”, “the risk of the vaccination clearly outweighs the benefits” (recoded), “I want to counteract a personally serious COVID-19 course with a vaccination”, I might want to help protect others with my own vaccination”, “I am concerned that the vaccination interact with other medication that I take” (recoded), “It takes little effort for me to get vaccinated”, “I will mainly get vaccinated because relatives advise me to do so”, “I will mainly get vaccinated because doctors advise me to do so”, “I generally do not see any benefit in vaccinations” (recoded); b = response scale 0–100%; significant results in bold letters.