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. 2020 Nov 20;92(1):53–61. doi: 10.1136/jnnp-2020-323982

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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ARRs and EDSS scores before, during and after pregnancy. (A) Mean ARRs for each phase of delivery. (B) Mean ARRs for each phase of abortion. (C) Mean EDSS scores for each phase of delivery. (D) Mean EDSS scores for each phase of abortion. A paired t-test or Wilcoxon signed-rank test was used to compare the ARRs and EDSS scores for each pregnancy-related period with those during BP. ARR, annualised relapse rate; BP, 12–0 months before pregnancy; DP, the period during pregnancy; DP1, 0–3 months during pregnancy; DP2, 3–6 months during pregnancy; DP3, 6–9 months during pregnancy; EDSS, Expanded Disability Status Scale; PP, 0–12 months of the postpartum period; PP1, 0–3 months of the postpartum period; PP2, 3–6 months of the postpartum period; PP3+4, 6–12 months of the postpartum period.