Intended for healthcare professionals


NSAIDs during pregnancy and risk of miscarriage

BMJ 2004; 328 doi: (Published 09 January 2004) Cite this as: BMJ 2004;328:108

True risks or only suspicions?

  1. Benedetta Schiavetti, research fellow (,
  2. Antonio Clavenna, senior research fellow,
  3. Rita Campi, statistician,
  4. Maurizio Bonati, head
  1. Laboratory for Mother and Child Health and CRIF-Regional Drug Information Centre Mario Negri Institute for Pharmacological Research, I-20157 Milan, Italy

    EDITOR—The finding of Li et al of an association between an increased risk of miscarriage and use of non-steroidal anti-inflammatory drugs (NSAIDs) relies on biased data.1 For the same cohort of women, previous analysis showed that exposure to magnetic fields was a risk factor for miscarriage,2 and this variable should have been included. Moreover, 103/170 …

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