New Zealand Health, Work and Retirement Study
The New Zealand Health, Work and Retirement Study (NZHWR) is a longitudinal study of people aged 55 years and over conducted by the Health and Ageing Research Team at Massey University.
The NZHWR study aims to track and describe factors associated with health, retirement and "ageing well" in the older New Zealand population, and features an oversampling of Māori participants so as to adequately represent this section of the older New Zealand community.
Overview
- Acronym
- NZHWR
- Website
- NZHWR
- Investigators
-
- Contacts
General Design
- Study design
- Cohort
- Start - End Year
- 2006 -
- General Information on Follow Up (profile, frequency)
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Every two years, people who have previously filled out a questionnaire are re-surveyed. Follow-up surveys occurred in 2006, 2008, 2010, 2012, 2014, 2016, 2018, 2020 and 2022. Off-wave surveys have also been administered in 2009, 2013 and 2021. Face-to-face cognitive interviews have been conducted with subsamples in 2010 and 2012 and life course history interviews have been conducted with the original Wave 1 (2006) cohort in 2017. De-identified administrative data from national health databases are linked on a biennial basis for consenting participants.
- Recruitment Target
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- Individuals
- Number of Participants
- No Limit
- Supplementary Information
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The NZHWR study began in 2006 as a cohort-based study following a cohort of New Zealanders aged 55–70 at Wave 1. Additional cohorts have been recruited in 2009 (49-89 years old), in 2010 (50-84 years old), in 2014 (55-65 years old), in 2016 (55-65 years old), in 2018 (55-57 years old), in 2020 (55-65 years old) and in 2022 (55-65 years old).
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
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Marker Papers
Allen J, Alpass F M, and Stephens C V. New Zealand health, work and retirement longitudinal study. In: Gu, D., Dupre, M.E. (eds) Encyclopedia of Gerontology and Population Aging. Cham: Springer International Publishing, 2021; 3484-3490. https://doi.org/10.1007/978-3-030-22009-9_977
Timeline
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
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49
- Maximum age
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89
- Countries
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- New Zealand
- Supplementary Information about selection criteria
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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)
Sources of Recruitment
- General Population
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- Selected sample
- Specific Population
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- Other specific population : Māori
- Supplementary Information
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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.
Sample Size
- Number of Participants
- No Limit
- Supplementary information about number of participants
-
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
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | NZHWR - Wave 1 |
|
2006 | 2006 | |
| 1 | NZHWR - Wave 2 |
|
2008 | 2008 | |
| 2 | NZHWR - Off-wave 1 |
|
2009 | 2009 | |
| 3 | NZHWR - Wave 3 |
|
2010 | 2010 | |
| 4 | NZHWR - Wave 4 |
|
2012 | 2012 | |
| 5 | NZHWR - Off-wave 2 |
|
2013 | 2013 | |
| 6 | NZHWR - Wave 5 |
|
2014 | 2014 | |
| 7 | NZHWR - Wave 6 |
|
2016 | 2016 | |
| 8 | NZHWR - Life course history interviews |
|
2017 | 2017 | |
| 9 | NZHWR - Wave 7 |
|
2018 | 2018 | |
| 10 | NZHWR - Wave 8 |
|
2020 | 2020 | |
| 11 | NZHWR - Off-wave 3 |
|
2021 | 2021 | |
| 12 | NZHWR - Wave 9 |
|
2022 | 2022 |
Participating Studies
| Acronym | Name | Study design | Countries |
|---|
Harmonization Initiatives Included
| Acronym | Name |
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Datasets
| Name | Data Collection Events | Variables |
|---|
Areas of Information Collected
- Socio-demographic and economic characteristics
- Death
- Lifestyle and behaviours
- Physical measures and assessments
- Birth, pregnancy and reproductive health history
- Laboratory measures
- Perception of health, quality of life, development and functional limitations
- Cognition, personality and psychological measures and assessments
- Diseases
- Life events, life plans, beliefs and values
- Symptoms and signs
- Preschool, school and work life
- Medication and supplements
- Social environment and relationships
- Non-pharmacological interventions
- Physical environment
- Health and community care services utilization
- Administrative information
Variables Content Summary
Areas of Information Collected
No Areas of Information Collected
No Scales Collected
Areas of Information Collected per per Population and Data Collection Event
No Areas of Information Collected
No Scales Collected
Networks
| Acronym | Name | Harmonization Initiatives | Individual Studies |
|---|
Last Update: 2022-10-04T11:03:30.256