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.
Overview
- Acronym
- JSTAR
- Website
- JSTAR
- Investigators
-
Professor Hidehiko IchimuraUniversity of Tokyo, Research Institute of Economy, Trade and Industry (RIETI)
- Contacts
-
General Design
- Study design
- Cohort
- Start - End Year
- 2007 -
- General Information on Follow Up (profile, frequency)
-
The participants are followed-up every 2 years
- Recruitment Target
-
- Individuals
- Other : Spouses
- Number of Participants
- 7,268
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
|
Marker Paper
JSTAR First Results 2009 Report. ICHIMURA Hidehiko, SHIMIZUTANI Satoshi, HASHIMOTO Hideki. September 2009 09-E-047.
Timeline
Populations
Adachi-Kanazawa-Shirakawa-Sendai-Takikawa
The individuals in the baseline sample of JSTAR are aged between 50 and 75 and
live in five municipalities mainly in the eastern area of Japan. The cities are Takikawa city in
Hokkaido, Sendai city in the Tohoku area, Adachi ward which is a special city in the
center of the Tokyo metropolis, Kanazawa city in the Hokuriku area and Shirakawa
town in a mountainous town in the Chubu area.
Selection Criteria
- Minimum age
-
50
- Maximum age
-
75
- Countries
-
- Japan
- Territory
- Adachi, Kanazawa, Shirakawa, Sendai, and Takikawa
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
-
There was a stratified random sampling within each municipality from a list of household registrations.
Sample Size
- Number of Participants
- 3,862
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | JSTAR - aksst - Wave 1 |
|
2007 (January) | 2007 (July) | |
| 1 | JSTAR - aksst - Wave 2 |
|
2009 (January) | 2009 (July) | |
| 2 | JSTAR - aksst - Wave 3 |
|
2011 (January) | 2011 (July) |
Tosu-Naha
Two municipalities, Tosu and Naha, in the western area of Japan were added during the second collect of information and participants aged between 50 and 75 years were recruited. Tosu is a city in the Kyushu area, and Naha is a city in Okinawa.
Selection Criteria
- Minimum age
-
50
- Maximum age
-
75
- Countries
-
- Japan
- Territory
- Tosu and Naha
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
-
There was a stratified random sampling within each municipality from a list of household registrations.
Sample Size
- Number of Participants
- 1,440
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | JSTAR - tn - Wave 1 |
|
2009 (January) | 2009 (July) | |
| 1 | JSTAR - tn - Wave 2 |
|
2011 (January) | 2011 (July) |
Chofu-Tondabayashi-Hiroshima
Three municipalities, Chofu, Tondabayashi and Hiroshima, were added during the third collect of information and participants aged between 50 and 75 years were recruited. Chofu is a city of the suburbs area of the Tokyo metropolis, Tondabayashi is a city in Osaka, and Hiroshima is a city in the Chugoku area.
Selection Criteria
- Minimum age
-
50
- Maximum age
-
75
- Countries
-
- Japan
- Territory
- Chofu, Tondabayashi, and Hiroshima
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
-
There was a stratified random sampling within each municipality from a list of household registrations.
Sample Size
- Number of Participants
- 1,966
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | JSTAR - cth - Wave 1 |
|
2011 (January) | 2011 (July) |
Participating Studies
| Acronym | Name | Study design | Countries |
|---|
Harmonization Initiatives Included
| Acronym | Name |
|---|
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: 2020-02-05T11:07:44.664