Rm. Pitkin et Ma. Branagan, CAN THE ACCURACY OF ABSTRACTS BE IMPROVED BY PROVIDING SPECIFIC INSTRUCTIONS - A RANDOMIZED CONTROLLED TRIAL, JAMA, the journal of the American Medical Association, 280(3), 1998, pp. 267-269
Context.-The most-read section of a research article is the abstract,
and therefore it is especially important that the abstract be accurate
. Objective.-To test the hypothesis that providing authors with specif
ic instructions about abstract accuracy will result in improved accura
cy. Design.-Randomized controlled trial of an educational intervention
specifying 3 types of common defects in abstracts of articles that ha
d been reviewed and were.being returned to the authors with an invitat
ion to revise. Mean Outcome Measure.-Proportion of abstracts containin
g 1 or more of the following defects: inconsistency in data between ab
stract and body of manuscript (text, tables, and figures), data or oth
er information given in abstract but not in body, and/or conclusions n
ot justified by information in the abstract. Results.-Of 250 manuscrip
ts randomized, 13 were never revised and 34 were lost to follow-up, le
aving a final comparison between 89 in the intervention group and 114
in the control;group. Abstracts were defective in 25 (28%) and 30 (26%
) cases, respectively (P =.78). Among 55 defective abstracts, 28 (51%)
had inconsistencies, 16 (29%) contained data not present in the body,
8 (15%) had both types of defects, and 3 (5%) contained unjustified c
onclusions. Conclusions.-Defects in abstracts, particularly inconsiste
ncies between abstract and body and the presentation of data in abstra
ct but not in body, occur frequently. Specific instructions to authors
who are revising their manuscripts are ineffective in lowering this r
ate. Journals should include in their editing processes specific and d
etailed attention to abstracts.