A systematic review of the processes used to link clinical trial registrations to their published results.

ABSTRACT:

Background

Studies measuring the completeness and consistency of trial registration and reporting rely on linking registries with bibliographic databases. In this systematic review, we quantified the processes used to identify these links.

Methods

PubMed and Embase databases were searched from inception to May 2016 for studies linking trial registries with bibliographic databases. The processes used to establish these links were categorised as automatic when the registration identifier was available in the bibliographic database or publication, or manual when linkage required inference or contacting of trial investigators. The number of links identified by each process was extracted where available. Linear regression was used to determine whether the proportions of links ava

SUBMITTER: Bashir R 

PROVIDER: S-EPMC5494826 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature