a. The results of the validation of the SDQ on 2-year olds have not yet been published in peer reviewed format. Further work on this issue is currently ongoing in Glasgow and results are likely to be published soon.
b. Data from 2 year olds included in the Scottish Health Survey 2008-2010 and historical data on child health reviews done on 3½ year olds in 2001 and recorded on CHSP-PS. UK 1990 reference files used as the standard.
Email: Mary Sloan