Download PDFPDF

Patterns of bruising in preschool children—a longitudinal study
Compose Response

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Author Information
First or given name, e.g. 'Peter'.
Your last, or family, name, e.g. 'MacMoody'.
Your email address, e.g.
Your role and/or occupation, e.g. 'Orthopedic Surgeon'.
Your organization or institution (if applicable), e.g. 'Royal Free Hospital'.
Statement of Competing Interests


  • Responses are moderated before posting and publication is at the absolute discretion of BMJ, however they are not peer-reviewed
  • Once published, you will not have the right to remove or edit your response. Removal or editing of responses is at BMJ's absolute discretion
  • If patients could recognise themselves, or anyone else could recognise a patient from your description, please obtain the patient's written consent to publication and send them to the editorial office before submitting your response [Patient consent forms]
  • By submitting this response you are agreeing to our full [Response terms and requirements]

Vertical Tabs

Other responses

Jump to comment:

  • 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...

    Show More
    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...
    Show More
    Conflict of Interest:
    None declared.