Note: If consent is withdrawn, all patient data except for the patient id and reason for drop out may have to be deleted.

Code	Reason for Drop Out
0	Patient was not infected (mainly for children)
1	Patient lost to follow-up / not known to be dead
2	Patient has not had visit within required amount of time
2.1	Patient did not respond to several invitations
3	Patient moved away
3.1	Patient moved to another country
4	Patient moved and is followed by another centre
4.1	Paediatric patient transferred to adult care
5	Patients decision
5.1	Patients caretaker wanted to discontinue (for children)
6	Consent withdrawn
7	Incarceration/jail
8	Institutionalisation (drug treatment, psychological …etc.)
9	Other