Table 1 Inclusion and exclusion criteria for adolescent participation in the Loozit^® study

▪ Age 13.0–16.9 years

▪ Severely obese (i.e. BMI z-score^a>2.5) or if there is a secondary

cause for overweight/obesity

▪ Overweight to moderately obese (i.e. BMI z-score^a range 1.0–2.5)

▪ Intellectual disability, significant medical illness, psychiatric

disturbance

▪ Home access to a landline telephone

▪ Taking medications that affect weight status

▪ Home access to the internet to receive e-mails or access to a

mobile phone to receive SMS messages

▪ Inability to take part in physical activity sessions

▪ Ability to attend the group program for 7 weeks in the first instance

on the specified days^b

▪ Poor level of spoken English (adolescent or parent/carer)

▪ At least one of the adolescent's parents/carers must be willing to

also participate in the initial 7 parent group sessions