Extract

To the Editor:

The abstract of a research article is considered to be the most important part of the article. It should contain, in a brief but concise form, the critical components of the scientific study being reported. It often is the only part of the article that is read and is widely available through biomedical databases. Thus, it is of fundamental importance that data reported in abstracts are consistent with those reported in the body of the article. Recent studies have reported that data in abstracts sometimes are inconsistent with those reported in the article (1)(2)(3). The aim of this study was to determine the abstract data inconsistency rate of Clinical Chemistry.

All articles published in Clinical Chemistry over 6 months from January 2000 that contained data in the abstract were checked against the corresponding data reported in the article, including tables and figures. Data inconsistencies were classified as either data in the abstract being different from the data presented in the body of the article or the absence from the article of data presented in the abstract.

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