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. 2023 Jan 13;32(4):1053–1067. doi: 10.1007/s11136-022-03322-9

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Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits 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/4.0/.

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Fig. 3 — Distribution of PRO-algorithm outcomes. X-axis: number of questionnaires (algorithm outcomes), Y-axis: cumulative proportion of outcome colors. Prior to plotting, questionnaires were ordered patient-wise by outcome severity group (cf. Table 1), so that questionnaires from patients with least severe outcomes (solely green outcomes) appear on the left and questionnaires from patients with the most severe outcomes (solely red outcomes) on the right. SQ: Singleton questionnaires i.e., questionnaires from patients who so far have answered only one questionnaire and thus can possess no variation. (Color figure online)