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Structured abstracts in MEDLINE, 1989-1991

A M Harbourt1, L S Knecht, B L Humphreys

  • 1Computer Science Branch, Lister Hill National Center for Biomedical Communications, National Library of Medicine, Bethesda, Maryland 20894, USA.

Bulletin of the Medical Library Association
|April 1, 1995
PubMed
Summary

Structured abstracts in biomedical journals increased significantly between 1989-1991. These abstracts offered more access points for retrieval, though journal format variations may complicate their use.

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Area of Science:

  • Bibliometrics
  • Medical Informatics
  • Scientific Communication

Background:

  • Structured abstracts offer a standardized format for scientific articles.
  • Their utility in enhancing bibliographic retrieval requires investigation.
  • MEDLINE is a primary database for biomedical literature.

Purpose of the Study:

  • To characterize structured abstracts in MEDLINE-indexed journals.
  • To explore the potential of structured abstracts in improving bibliographic retrieval.

Main Methods:

  • Examined structured abstracts in MEDLINE (1989-1991).
  • Analyzed characteristics of records with structured abstracts.
  • Reviewed editorial policies of six selected journals.
  • Sampled twenty-five structured abstracts.

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Main Results:

  • Substantial increase in structured abstracts and publishing journals from 1989-1991.
  • Articles with structured abstracts had more access points (MeSH terms, text words).
  • Structured abstracts were longer than average MEDLINE abstracts.

Conclusions:

  • Structured abstracts may correlate with increased indexing depth (MeSH terms).
  • Variations in journal-specific formats could hinder bibliographic retrieval.
  • Further research is needed on the quality and utility of structured abstracts.