Table 1 Exclusion criteria

^aMania, hypomania, or bipolar disorder

A current child protection investigation

An intellectual disability or a severe mental illness requiring inpatient treatment or otherwise impairing their ability to participate in a group program

The young person is unwilling to undertake the minimum requirements for entry to the study including completion of the consent form, telephone KID-SCID interview, and the baseline questionnaire

An inability to understand spoken English

The young person is currently pregnant

The parents indicate they are unable to participate fully in the program, including attendance at group sessions one evening per week for eight weeks and completing all questionnaires

Insufficient address for follow-up or unwillingness to be followed-up

^aPsychosis or psychotic disorders, including drug induced psychosis

The young person is currently fully engaged and regularly attending a treatment service for their mental health problems which the family considers are adequately addressing their mental health needs

Pervasive developmental disorder, including autism but not including Asperger’s syndrome

^aDrug dependence, with the exception of alcohol, nicotine or cannabis