We have also conducted (or conduct) sub-studies on other generations of the original cohort members’ families. Specifically, interviews with the parents of the Study members took place between 2003 and 2006 for the Dunedin Family Health History Study (FHHS). The FHHS interviews focussed on the physical and emotional health of the extended families (including grandparents and siblings) of the main cohort Study member, with a particular focus on their parents. This study involved 1852 eligible parents of whom 93 % were interviewed, mainly in their own homes. In total they reported on the health status of approximately n = 8000 family members [11–13].
