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. 2023 Feb 24;12(2):619–633. doi: 10.1007/s40120-022-00431-y

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© The Author(s) 2023

Open AccessThis article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, which permits any non-commercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc/4.0/.

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Fig. 2 — Proportion of newly diagnosed patients who were either initiated on therapy immediately or had initiation of maintenance therapy delayed by over 2 months, by initial attack severity. Data are presented for all newly diagnosed patients for whom severity of the initial attack was recorded (N = 416). The χ² test was used to test for an association between time to initiation on treatment and severity of initial attack, and there was a strong association between these variables (p < 0.05)