ArticleRheumatology (Oxford, England)2020
Pregnancy outcomes in women with idiopathic inflammatory myopathy, before and after diagnosis-a population-based study.
Article in Rheumatology (Oxford, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 18 citations in OpenAlex.
- Outcomes of pregnancies complicated by maternal autoimmune diseases in Denmark, Finland, and Sweden: a multi-national population-based register study.AJOG global reports · 2026Article
- Pregnancy Outcomes in Women With Systemic Sclerosis Before and/or After Diagnosis and by Parity: A Swedish Population-Based Cohort Study.Arthritis & rheumatology (Hoboken, N.J.) · 2026Article
- Pregnancy outcomes in idiopathic inflammatory myopathies: a Portuguese multicentre study.Frontiers in medicine · 2025Article
- Intravenous Immunoglobulin in Idiopathic Inflammatory Myopathies: a Practical Guide for Clinical Use.Current rheumatology reports · 2023Review
- Immunosuppressive therapy before and during pregnancy may improve obstetric outcomes in pregnancy complicated by dermatomyositis with anti-MDA-5 antibody positivity: A case report.Case reports in women's health · 2023Article
- Neuromuscular disorders in pregnancy.Handbook of clinical neurology · 2020Review
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo examine pregnancy outcomes among births to women with idiopathic inflammatory myopathy (IIM) in relation to time of IIM diagnosis using population-based data.
methodsThis study used Swedish nationwide registers to identify all singleton births that occurred between 1973 and 2016 among women diagnosed with IIM between 1998 and 2016 and among women unexposed to IIM. We classified births according to the IIM status of the mother at time of delivery: post-IIM (n = 68), 1-3 years pre-IIM (n = 23), >3 years pre-IIM (n = 710) and unexposed to IIM (n = 4101). Multivariate regression models were used to estimate relative risks of adverse pregnancy outcomes in post-IIM births and pre-IIM births separately, in comparison with their non-IIM comparators.
resultsWe found that post-IIM births had increased risks of caesarean section [adjusted relative risk (aRR) = 1.98; 95% CI: 1.08, 3.64], preterm birth (aRR = 3.35; 95% CI: 1.28, 8.73) and low birth weight (aRR = 5.69; 95% CI: 1.84, 17.55) compared with non-IIM comparators. We also noticed higher frequencies of caesarean section and instrumental delivery in 1-3 years pre-IIM births than in the non-IIM comparators.
conclusionWomen who gave birth after IIM diagnosis had higher risks of caesarean section, preterm birth and low birth weight. These results further underline the importance of special care and close monitoring of women with IIM. Higher frequencies of caesarean section and instrumental delivery in pre-IIM births highlight the need for future research on the influence of subclinical features of IIM on pregnancy outcomes.
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