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Decreased chance of a live born child in women with rheumatoid arthritis after assisted reproduction treatment: a nationwide cohort study

Abstract

Objectives No studies have examined the efficacy of assisted reproductive technology (ART) treatment in women with rheumatoid arthritis. Therefore, we examined the chance of live birth after ART treatment in women with rheumatoid arthritis compared with women without rheumatoid arthritis.

Methods Our cohort study is based on nationwide Danish health registries, comprising all women with an embryo transfer during 1 January 1994 through 30 June 2017. The cohorts comprised 1149 embryo transfers in women with rheumatoid arthritis, and 198 941 embryo transfers in women without rheumatoid arthritis. Our outcome was live birth per embryo transfer, and we controlled for multiple covariates in the analyses. In subanalyses, we examined a chance of biochemical/clinical pregnancy after ART and a possible impact of corticosteroid use prior to embryo transfer.

Results The adjusted OR (aOR) for a live birth per embryo transfer in women with rheumatoid arthritis, relative to women without rheumatoid arthritis, was 0.78 (95% CI 0.65 to 0.92). The aORs for biochemical and clinical pregnancies were 0.81 (95% CI 0.68 to 0.95) and 0.82 (95% CI 0.59 to 1.15), respectively. Corticosteroid prescription prior to embryo transfer increased the OR for live birth (aOR=1.32 (95% CI 0.85 to 2.05)).

Conclusions The chance of a live birth was significantly reduced in women with rheumatoid arthritis receiving ART treatment, relative to women without rheumatoid arthritis, and our result suggested that the problem was related to an impaired chance of embryo implantation. The role of corticosteroid use prior to embryo transfer must be a subject for further research.

  • rheumatoid arthritis
  • assisted reproductive technology
  • in vitro fertilisation
  • clinical epidemiology
  • reproduction
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