Letter

Danish group reanalyses miscarriage in NSAID users

BMJ 2004; 328 doi: 10.1136/bmj.328.7431.109 (Published 8 January 2004)
Cite this as: BMJ 2004;328:109.1

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  1. Gunnar Lauge Nielsen (uxgln@aas.nja.dk), consultant,
  2. Mette Vinther Skriver, biostatistician,
  3. Lars Pedersen, chief statistician,
  4. Henrik Toft S⊘rensen, professor
  1. Department of Clinical Epidemiology, Aalborg and Aarhus University Hospitals, DK-9000 Aalborg, Denmark

    EDITOR—Li et al reported that use of non-steroidal anti-inflammatory drugs (NSAIDs) in the first half of pregnancy is associated with an 80% increased risk of miscarriage, which is in accordance with our previous results.1 2

    We have since accessed a recent update of our dataset covering 1998-2002, including gestational age, which was not …

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