Beschreibung:
<p>STUDY QUESTION Are there differences between Medline records of randomised controlled trials (RCTs) that are indexed with RCT[pt] (publication type), and records that are not? SUMMARY ANSWER Medline records of randomised controlled trials that were not indexed with RCT [pt] were more likely than indexed records to be focused on trial information other than main results. WHAT IS KNOWN AND WHAT THIS PAPER ADDS Indexing with RCT [pt] aids in retrieval of randomised trial reports from Medline. Reports of randomised trials that are not indexed with this publication type are more likely than indexed reports to describe trial design and methods, baseline characteristics of participants, long term follow-up, and secondary and observationaldata analyses, making this type of information more difficult to identify from Medline. Researchers and healthcare decision makers relying on using RCT[pt] may be missing important evidence in their searches.</p>