Table 2 Method of initial approach to families, by region
Region | Method of approach | ||
|---|---|---|---|
North England | Indirect | Telephone | Child's paediatrician phoned; followed by phone call from researcher |
West Sweden | Direct | Letter – opt-out | Researcher sent opt-out letter, followed by phone call |
Northern Ireland | Indirect | Letter – opt-in | Child's primary notifier to the register sent opt-in letter, follow-up letters and in some cases telephoned some families |
South East France | Direct | Letter – opt-out | Researcher sent opt-out letter, followed by phone call |
South West Ireland | Direct | Telephone | Researcher phoned, followed by letter |
East Denmark | Direct | Letter – opt-out | Researcher sent opt-out letter, followed by phone call |
Central Italy | Indirect | Telephone | Doctor, social worker or therapist phoned family, followed by phone call by researcher |
South West France | Direct | Telephone | Researcher phoned, followed by letter |
North West Germany | Indirect | Face-to-face | Child's primary carer approached family face-to-face |