Japanese Study of Aging and Retirement
JSTAR project researchers aimed to construct a world-class longitudinal dataset on middle-aged and elderly Japanese persons to enable researchers worldwide to perform scientific investigations on aging and retirement from an international perspective.
This study aims to describe in detail how middle-aged and elderly Japanese live in terms of economic, social, health, and family status. In this project, the intention is to zoom in to paint a picture of the lives of individuals and zoom out to also provide a panorama view of society, while extracting scientific findings which are hoped to be innovative and insightful regarding life in Japan as well as other countries in the world. Moreover, it tries to connect these new scientific findings to efforts toward enhancing the effectiveness of policymaking.
- Start Year
- 2007
Visit JSTAR
| Investigators | Contacts |
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Design
- Study design
- Cohort
- Follow Up
- The participants are followed-up every 2 years
- Supplementary Information
Marker Paper
JSTAR First Results 2009 Report. ICHIMURA Hidehiko, SHIMIZUTANI Satoshi, HASHIMOTO Hideki. September 2009 09-E-047.
Recruitment
- Recruitment Target
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- Individuals
- Other : Spouses
Number of Participants
- Number of Participants
- 7,268
- Number of Participants with Biological Samples
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
Timeline
Populations
Selection Criteria
- Minimum age
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50
- Maximum age
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75
- Newborns
- Twins
- Countries
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- Japan
- Territory
- Adachi, Kanazawa, Shirakawa, Sendai, and Takikawa
Recruitment
- Sources of recruitment
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- General population
- General Population
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- Selected sample
- Supplementary Information
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There was a stratified random sampling within each municipality from a list of household registrations.
Number of Participants
- Number of Participants
- 3,862
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
JSTAR - aksst - Wave 1
|
The survey was composed of two parts: a self-completion questionnaire (SCQ) and a computer-assisted personal interviewing (CAPI) section. The SCQ included questions about lifestyle and health, ... |
2007-01 | 2007-07 |
| 1 |
JSTAR - aksst - Wave 2
|
The survey was composed of two parts: a self-completion questionnaire (SCQ) and a computer-assisted personal interviewing (CAPI) section. The SCQ included questions about lifestyle and health, ... |
2009-01 | 2009-07 |
| 2 |
JSTAR - aksst - Wave 3
|
The survey was composed of two parts: a self-completion questionnaire (SCQ) and a computer-assisted personal interviewing (CAPI) section. The SCQ included questions about lifestyle and health, ... |
2011-01 | 2011-07 |
Selection Criteria
- Minimum age
-
50
- Maximum age
-
75
- Newborns
- Twins
- Countries
-
- Japan
- Territory
- Tosu and Naha
Recruitment
- Sources of recruitment
-
- General population
- General Population
-
- Selected sample
- Supplementary Information
-
There was a stratified random sampling within each municipality from a list of household registrations.
Number of Participants
- Number of Participants
- 1,440
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
JSTAR - tn - Wave 1
|
The survey was composed of two parts: a self-completion questionnaire (SCQ) and a computer-assisted personal interviewing (CAPI) section. The SCQ included questions about lifestyle and health, ... |
2009-01 | 2009-07 |
| 1 |
JSTAR - tn - Wave 2
|
The survey was composed of two parts: a self-completion questionnaire (SCQ) and a computer-assisted personal interviewing (CAPI) section. The SCQ included questions about lifestyle and health, ... |
2011-01 | 2011-07 |
Selection Criteria
- Minimum age
-
50
- Maximum age
-
75
- Newborns
- Twins
- Countries
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- Japan
- Territory
- Chofu, Tondabayashi, and Hiroshima
Recruitment
- Sources of recruitment
-
- General population
- General Population
-
- Selected sample
- Supplementary Information
-
There was a stratified random sampling within each municipality from a list of household registrations.
Number of Participants
- Number of Participants
- 1,966
Data Collection Event
The survey was composed of two parts: a self-completion questionnaire (SCQ) and a computer-assisted personal interviewing (CAPI) section. The SCQ included questions about lifestyle and health, and the CAPI collected information about the individual and his family, memory, cognitive ability and hypothetical questions, employment, health of respondent and spouse, income and consumption, housing and assets, and use of and expenditure on Medicare care and nursing care services.
Grip strength was also measured.
- Start Date
-
2011-01
- End Date
-
2011-07
- Data sources
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- Questionnaires
- Physical measures
Classifications
- Socio-demographic and economic characteristics
- Lifestyle and behaviours
- Birth, pregnancy and reproductive health history
- Perception of health, quality of life, development and functional limitations
- Diseases
- Symptoms and signs
- Medication and supplements
- Non-pharmacological interventions
- Health and community care services utilization
- Death
- Physical measures and assessments
- Laboratory measures
- Cognition, personality and psychological measures and assessments
- Life events, life plans, beliefs and values
- Preschool, school and work life
- Social environment and relationships
- Physical environment
- Administrative information
- Cognitive functioning
- Personality
- Psychological distress and emotions
- Other psychological measures and assessments
- Perception of health
- Quality of life
- Life course development
- Functional limitations
- Other perception of health, quality of life and functional limitation-related information
Socio-demographic and economic characteristics
Lifestyle and behaviours
Perception of health, quality of life, development and functional limitations
Diseases
Symptoms and signs
Medication and supplements
Non-pharmacological interventions
Health and community care services utilization
Death
Physical measures and assessments
Cognition, personality and psychological measures and assessments
Life events, life plans, beliefs and values
Preschool, school and work life
Social environment and relationships
Physical environment
Administrative information
Cognitive functioning
Psychological distress and emotions
Quality of life
Functional limitations