Posted on 28 February 2017
Launched in February 2011, registrations reached 10,000 in November 2015 and in just over a year has doubled in size to include 20,000 records from 107 countries.
During 2016 there were 364,806 visits to the PROSPERO website from 210 countries, territories or colonies worldwide.
PROSPERO, which is funded by the National Institute for Health Research (NIHR), encourages research transparency and helps safeguard against selective reporting by providing a permanent record of the methods and outcomes set out in the systematic review protocol, against which the final review can be compared. PROSPERO also aims to reduce unintended duplication and research waste by encouraging researchers to check whether similar reviews exist before they embark on a new one.
Registration is web-based, the database is free to use and open to all researchers planning to conduct a systematic review and those wishing to search for registered ongoing or completed reviews.
 Google analytics data analysis accessed Feb 24th 2017