Lupus & antiphospholipid syndrome

Outcomes of children born to mothers with systemic lupus erythematosus exposed to hydroxychloroquine or azathioprine

Rheumatology (Oxford)Published Retrospective cohort study

Main finding · Childhood infection requiring hospital management (adjusted)Result — go to the resultOdds ratio 2.283 CI 1.003–5.198

Authors' conclusion

There were no significant negative outcomes in children exposed to HCQ in pregnancy. AZA use was associated with increased reporting of childhood infection, which warrants further study.

Study context

Population
Women attending UK specialist lupus clinics with children ≤17 years old, born after SLE diagnosis; 10 UK centreslive births of 199 mothers
Participants
284 live births
Exposure
Children exposed vs not exposed to HCQ or AZA during pregnancy and breast-feeding
  • HCQn = 150
  • AZAn = 87
Outcome
Outcomes of children born to mothers with SLE exposed to HCQ or AZA during pregnancy and breast-feeding (low birth weight, childhood infection)
Methodological detailsmulticentre, multivariable mixed-effects logistic regression
  • Multicentre
  • Multivariable mixed-effects logistic regression

Main finding

As reported in the abstract

Childhood infection requiring hospital management (adjusted)

Odds ratio

2.283

CI 1.003–5.198

P = 0.049

AZAvs Not exposed
OR 2.283 (CI 1.003–5.198); P = 0.049

Observational data: associations, not effects.

Further findings

Congenital malformations or intrauterine growth restriction

No significant differences between children exposed or not to HCQ or AZA

AZA use by maternal history

AZA use increased in women with a history of hypertension or renal disease

Original publication

Outcomes of children born to mothers with systemic lupus erythematosus exposed to hydroxychloroquine or azathioprine. Rheumatology (Oxford). Published 29 June 2022. doi:10.1093/rheumatology/keac372

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