Conclusions and validity of data cannot be judged

BMJ 1995; 310 doi: https://doi.org/10.1136/bmj.310.6980.668a (Published 11 March 1995) Cite this as: BMJ 1995;310:668
  1. John F Stratton,
  2. H Gordon,
  3. M Logue
  1. Registrar Head of department Midwifery sister Northwick Park Hospital, Harrow, Middlesex HA1 3UJ

    EDITOR,—Tine Brink Henriksen and colleagues fail to give adequate clinical information so that we can judge the validity of their data and their conclusions on changes in the use of episiotomy.1 First and foremost is their failure to analyse their results for primigravidas and multigravidas separately.

    As most parturients who require episiotomy are primigravidas, combining the results for both groups may mask important underlying differences and outcomes. The high incidence of pudendal …

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