Table 1. Electronic databases with the terms used and number of documents found.

Databases	Terms used	Number of documents found
Scielo Brazil	atraso do desenvolvimento; atraso do desenvolvimento neuropsicomotor; retardo do desenvolvimento neuropsicomotor, atraso do desenvolvimento global; retardo mental	498
Web of Science	developmental delay* AND child; global developmental delay*; neuropsychomotor developmental delay*; neuropsychomotor developmental retardation*; mental retardation* AND child; neurodevelopmental disabilities* AND child; developmental disorder* AND child*	7,545
Science Direct	developmental delay AND child; global developmental delay; neuropsychomotor developmental delay; neuropsychomotor developmental retardation; mental retardation AND child; neurodevelopmental disabilities AND child; developmental disorder AND child	3,672
Pubmed (MEDLINE)	developmental delay child; global developmental delay; neuropsychomotor developmental delay; neuropsychomotor developmental retardation; mental retardation child; neurodevelopmental disabilities child; developmental disorder child	8,974
Wiley Online Library	developmental delay AND child; global developmental delay AND child; neuropsychomotor developmental delay; neuropsychomotor developmental retardation; mental retardation AND child; neurodevelopmental disabilities AND child; developmental disorder AND child	3,662
Springer	developmental delay; global developmental delay; neuropsychomotor developmental delay; neuropsychomotor developmental retardation; mental retardation; neurodevelopmental disabilities; developmental disorder	4,505
OneFile (GALE)	children with developmental delays; global developmental delay; neuropsychomotor developmental delay; neuropsychomotor developmental retardation; mental retardation AND children´s; neurodevelopmental disabilities; developmental disorders	675
Total		29,531