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Table 1 Number of abstracts identified at each search

From: Psychosocial interventions for suicidal ideation, plans, and attempts: A database of randomised controlled trials

  Number of abstracts
Original search First update Second update Third update Fourth update
1800 – April 3 2009 April 3 2009 – July 2010 July 2010 – December 31 2010 January 1 2011 – December 31 2011 January 1 2012 – July 30 2013
Database
CENTRAL   69 39 24 4
PsycInfo   574 424 426 31
PubMed   606 95 278 687
TOTAL 8986 1249 558 728 722