Korean Journal of Family Practice

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Fig. 2. Difference of the duration of adverse reactions after the 1 dose and 2 dose SARS-CoV-2 vaccine (BNT162b2, Pfizer/BioNTech).Dose 1: Adverse event of the first dose Pfizer vaccination, Dose 2: Adverse event of the second dose Pfizer vaccination. Dose 1 duration, n (%): none, 38 (27.3); within minutes, 1 (0.7); within a few hours, 6 (4.3); Day 1, 30 (21.3); Day 2, 43 (30.9); Day 3, 11 (7.9); Day 4, 4 (2.9); Day 5, 1 (0.7); Day 6, 0 (0); Day 7, 3 (2.2); Day 10, 2 (1.4). Dose 2 duration, n (%): none, 21 (15.1); within minutes, 1 (0.7); within a few hours, 6 (4.3); Day 1, 24 (17.3); Day 2, 40 (28.8); Day 3, 28 (20.1); Day 4, 7 (5.0); Day 5, 4 (2.9); Day 6, 2 (1.4); Day 7, 5 (3.6); Day 10, 1 (0.7). P-value<0.001. P-value by Wilcoxon signed-rank test.
Korean J Fam Pract 2021;11:357~364 https://doi.org/10.21215/kjfp.2021.11.5.357
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