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A retrospective anonymous RedCAP survey of peripartum period in females with RA\/PsA in the RAPPORT registry was performed. Completed analyses included descriptive statistics, Chi-square and Fisher\u2019s exact test. 162 patients (133 RA\/29 PsA) completed the survey (103 women having 234 pregnancies), 164 pregnancies occurring before and 70 pregnancies occurring after diagnosis. Pregnancy outcomes from 103 patients included: 96% live births, 1.9% stillbirths, 23% miscarriages, and 15% therapeutic abortions. A third of patients had fewer children than desired due to disease activity, medications and other reasons. For 63 pregnancies after diagnosis: (1) 49% of pregnancies received pre-conception counseling; (2) 65% described good disease control during pregnancy but 74% flared in the first 3 months postpartum; (3) 79% of pregnancies discontinued IA medications; (4) 35% of pregnancies occurred on biologic therapy at or prior to conception. Gestational age at time of delivery was 37\u201340 weeks in 58% (33\/57) post-arthritis vs 66% (83\/126) pre-arthritis pregnancies. No statistically significant differences occurred between pregnancies before or after RA\/PsA diagnosis for: pregnancy planning, fertility treatment, pregnancy and labour\/delivery complications, birth defect frequency or neonatal complications. Neonatal ICU admissions were significantly lower in pre- compared to post-arthritis pregnancies (3.2% vs 14.5%). No pregnancy complications were noted in 24\/54 pregnancies on medications compared to 6\/9 pregnancies not on medications. The impact of RA\/PsA before, during and after pregnancy varied considerably in this cohort emphasizing the importance of informed-decision making at all stages.<\/jats:p>","DOI":"10.1038\/s41598-020-60451-2","type":"journal-article","created":{"date-parts":[[2020,2,28]],"date-time":"2020-02-28T11:02:41Z","timestamp":1582887761000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Peripartum issues in the inflammatory arthritis patient: A survey of the RAPPORT registry"],"prefix":"10.1038","volume":"10","author":[{"given":"T. D.","family":"Dissanayake","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1291-1755","authenticated-orcid":false,"given":"W. P.","family":"Maksymowych","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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