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Deficiencies in structured medical abstracts

P Froom1, J Froom

  • 1Institute of Workers Health and Rehabilitation, Tel Aviv University, Israel.

Journal of Clinical Epidemiology
|July 1, 1993
PubMed
Summary
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Structured abstracts in the Annals of Internal Medicine often lack critical appraisal information. Key details like patient selection and study limitations were more frequently reported in the full text than in abstracts.

Area of Science:

  • Medical Literature Analysis
  • Scientific Publishing Standards

Background:

  • Structured abstracts are intended to provide a comprehensive summary of research.
  • The Ad Hoc Working Group for Critical Appraisal of Medical Literature established recommendations for abstract content.
  • Compliance with these recommendations ensures abstracts adequately convey essential study information.

Purpose of the Study:

  • To evaluate the adherence of structured abstracts in the Annals of Internal Medicine to critical appraisal guidelines.
  • To compare the reporting of key information in abstracts versus full-text articles.

Main Methods:

  • A survey design was employed to analyze articles published in the Annals of Internal Medicine in 1991.
  • Articles were assessed for the presence of patient selection criteria, extrapolation statements, need for further study, and current applicability.

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  • Specific data on refusers, dropouts, and reasons for dropouts were collected for intervention and prospective cohort studies.

    • Main Results:

    • Structured abstracts frequently omitted essential information, with patient selection criteria reported in only 44.6% of cases.
    • Reporting of refusers (3.1%), dropouts (16.9%), and reasons for dropouts (2.4%) was significantly lower in abstracts compared to full texts.
    • Statements on extrapolation, need for further study, and current use were significantly more prevalent in full texts (p < 0.0001).

    Conclusions:

    • A substantial proportion of structured abstracts in the Annals of Internal Medicine in 1991 did not meet the Ad Hoc Working Group's recommendations.
    • Full texts provided more comprehensive reporting of critical appraisal elements than their corresponding abstracts.
    • Findings are specific to the analyzed journal and time period, cautioning against extrapolation to other publications.