Figure 1.

A comparison of HAE attack numbers (A, C) and VAS scores in the worst attack (B, D) in each period between group 1a and group 1b. HAE = Hereditary angioedema; VAS = visual analog scale; P1 = period 1, 1 month before the first dose; P2, period 2, the period between the first and the second doses of coronavirus disease 2019 (COVID-19) vaccine in all the patients; P3, period 3, the period between the second dose and the third dose in those who received three doses; P4, period 4, 1 month after the last vaccination dose.