Acceptability and understanding of the Ages & Stages Questionnaires®, Third Edition, as part of the Healthy Child Programme 2-year health and development review in England: Parent and professional perspectives.

Background: The Healthy Child Programme is the universal public health system in England to assess and monitor child health from 0 to 19. Following a review of measures for closer monitoring at age 2 years, the Department of Health for England implemented the Ages & Stages Questionnaires®, Third Edition (ASQ-3™; Hereon, ASQ-3).

Aim: The aim of this study was to evaluate the acceptability and understanding of the ASQ-3 in England by health professionals and parents.