Maelstrom Research Staging

NZHWR_Wave4

Networks -

Variables -

Associated study NZHWR Contingency Table

Population

NZHWR population

The NZHWR population comprises older adults who live in New Zealand and were randomly sampled from the New Zealand Electoral Roll.

Selection Criteria

Minimum age

Maximum age

Newborns

Twins

Countries

New Zealand

Ethnic Origin

Health Status

Supplementary Information about selection criteria

Participants must be registered on the New Zealand electoral roll and have a New Zealand postal address to be selected. At Wave 1 (2006), New Zealanders aged 55 to 77 (born 1936-1952) were recruited. Additional cohorts have been recruited in 2009 (born 1920-1960), in 2010 (born 1926-1960), in 2014 (born 1949-1959), in 2016 (born 1951-1961), in 2018 (born 1961-1963), in 2020 (born 1954-1964) and in 2022 (born 1956-1966)

Recruitment

Sources of recruitment

General population
Specific population

General Population

Selected sample

Specific Population

Other specific population : Māori

Supplementary Information

Participants were randomly sampled from the electoral roll. In Waves 1 (2006), 3 (2010), 5 (2014), 6 (2016), 7 (2018), 8 (2020) and 9 (2022) an oversample of persons indicated on the electoral roll as being of Māori descent was undertaken to ensure that this sub-group is represented adequately.

Number of Participants

Number of Participants: No Limit
Number of Participants with Biological Samples
Supplementary Information about selection criteria: Wave 1 (2006) : 6661 participants
Wave 2 (2008) : 2474 participants
Wave 3 (2010) : 3311 participants
Wave 4 (2012) : 2984 participants
Wave 5 (2014) : 3052 participants
Wave 6 (2016) : 4029 participants
Wave 7 (2018) : 3963 participants
Wave 8 (2020) : 4350 participants
Wave 9 (2022) : TBC

More info

Data Collection Event

NZHWR - Wave 4

Data was collected via postal questionnaire. The postal questionnaire included sections on health (SF-12 health survey; chronic disease; health care usage; depression (CESD-10); alcohol use (AUDIT-C); tobacco use; physical activity), driving, quality of life (CASP-12; WHOQoL), loneliness (De Jong Gierveld Loneliness Scale), childcare, caregiving, religiosity, sexual functioning, discrimination, employment, retirement, income and economic living standards (ELSI-SF; LS-CAPE) and socio-demographic information. Participants identifying as Māori were asked to complete an additional section about genealogy/relationships and cultural identity. The postal questionnaire also asked about experiences of the 2010-2011 earthquakes in the Canterbury region. Participants who had previously completed a face to face cognitive interview in 2010 were re-approached to complete a second interview in 2012: the New Zealand adaptation of Addenbrooke’s Cognitive Examination–Revised (ACE-R), and the Alcohol Related Problems Survey (ARPS).

More info

Collected Dataset / NZHWR_Wave4

NZHWR_Wave4

Population

NZHWR population

Data Collection Event

NZHWR - Wave 4

Files

Variables Classifications