D�eficience intellectuelle Developmental disabilities Intellectual disability PSYCHOLOGY Troubles du d�eveloppement �Epid�emiologie Adult Adultes Adulthood BUSINESS & ECONOMICS Compulsive Behavior Data Interpretation, Statistical Data processing Data sets Datasets as Topic Developmental Disabilities Developmentally disabled Down Syndrome Down syndrome Epidemiology Health and hygiene Industries Informatique Intellectual Disability Jeux de donn�ees Longitudinal Studies Longitudinal method M�ethode longitudinale M�ethodologie Mental Illness