Play prescription: intervention delivered at primary health care facilities to promote child development through activities at home.

Background: Play is a fundamental component of children's social, emotional, cognitive, and physical development. This study focused on assesses a play-based intervention method to promote overall child development based on parental involvement, delivered at primary care facilities.

Methods: Quasi-experimental study was conducted with children 24-59 months old, regularly attending the monthly stimulation sessions in primary care facilities in the state of Puebla, Mexico, from November 2015 to April 2016.

[Diagnostic evaluation of the developmental level in children identified at risk of delay through the Child Development Evaluation Test].

Background: The Child Development Evaluation (or CDE Test) was developed in Mexico as a screening tool for child developmental problems. It yields three possible results: normal, slow development or risk of delay. The modified version was elaborated using the information obtained during the validation study but its properties according to the base population are not known.