Child: Every human being below the age of eighteen years unless, under the law applicable to the child, majority is attained earlier.

Juvenile: (according the Convention on the Rights of the Child): All children aged 14 to 17 years.

Disability / Type of disabilities: ‘Disabilities’ is an umbrella term, covering impairments, activity limitations, and participation restrictions. Impairment is a problem in body function or structure; an activity limitation is a difficulty encountered by an individual in executing a task or action; while a participation restriction is a problem experienced by an individual in involvement in life situations. Thus disability is a complex phenomenon, reflecting an interaction between features of a person’s body and features of the society in which he or she lives.

According to the United Nations Convention on the Rights of People with Disabilities (UNCRPD): “disability is an evolving concept (…) disability results from the interaction between persons with impairments and attitudinal and environmental barriers that hinders their full and effective participation in society on an equal basis with others” (in Preamble, Pg. 1).

“Persons with disabilities include those who have long-term physical, mental, intellectual or sensory impairments which in interaction with various barriers may hinder their full and effective participation in society on an equal basis with others”. (Article 1 of UNCPD).

Usually in the country, there is a National Authority* responsible for identification/assessment of the disability level or workability/working capacity level of a person. This Authority collects and process data about number of persons who recognised/registered as having some kind of disability. *For example in Lithuania, this is the Disability and Working Capacity Assessment Office subordinated to the Ministry of Social Security and Labour.

Children with disabilities (disabled children = children with special needs): Children with disabilities are those individuals under 18 years old with impairments (a problem in body function or structure), activity limitations (a difficulty encountered by an individual in executing a task or action) and participation restrictions (a problem experienced by an individual in involvement in life situations) for the recent 6 months or more.

Socially vulnerable families: Registered socially vulnerable families Socially vulnerable/ disadvantaged/ dysfunctional families, registered with the State. These families may have problems due to alcohol/drug abuse, dependency on gambling, disability, economic hardship or domestic violence or any other reasons which makes it difficult for the family to properly care/provide for the child.

Age (Eurostat definition): the age in full years at the time of the event, i.e. the so-called (age at last birthday).