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Table 1 Number of abstracts identified at each search

From: Antidepressants for depressive disorder in children and adolescents: a database of randomised controlled trials

Databases and Trial registers: Titles and abstracts
First search Published before May 2015 Updated May 2015–April 2017
Databases
 PubMed 364 341
 Cochrane 1556 209
 Web of Science 1743 406
 Embase 638 284
 CINAHL 172 31
 PsychInfo 1277 288
 LILACS 44 24
Total (databases) 5794 1583
Trial registers
 Australia (ANZCTR) 108 15
 China (ChiCTR) 12 2
 USA (ClinicalTrials.gov) 214 15
 Japan (UMIN-CTR) 56 10
 Netherlands (Trial Register) 14 3
 UN (ISRCTN) 110 9
 World Health Organization (ICTRP) 1003 154
 USA Food and Drug Administration (FDA) 992 572
Total (trial registers) 2509 780