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Patterns of bruising in preschool children—a longitudinal study
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  • Published on:
    Re: Cross-sectional presentation of longitudinal data
    • Alison M Kemp, Dr
    • Other Contributors:
      • Frank Dunstan, Diane Nuttall, M Hamilton, Peter Collins and Sabine Maguire

    We would like to thank Dr Clifford for his interest in our research. We do not agree with him that the title and abstract are misleading. The study was a longitudinal one and the results reflect that; for example we looked at the children over time and assessed the importance of within- child variation over time compared to between-child variation. It is very important to distinguish between a collection, that is a point...

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    Conflict of Interest:
    None declared.
  • Published on:
    Cross-sectional presentation of longitudinal data
    The authors of this study are to be congratulated on a unique and useful collection of data which, in the present climate, is increasingly difficult to achieve. Unfortunately the title is somewhat misleading and the abstract potentially open to mis-interpretation. Although parents collected diary data on their children during concurrent weeks, this is presented by the authors in a cross sectional, not longitudinal manner. Thus, wh...
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    Conflict of Interest:
    None declared.