Survey of Midlife in Japan (MIDJA): Biomarker Project, 2009-2010 (ICPSR 34969)

Version Date: Jul 3, 2014

Principal Investigator(s):
Hazel Markus, Stanford University; Christopher Coe, University of Wisconsin; Carol Ryff, University of Wisconsin; Mayumi Karasawa, Tokyo Woman's Christian University; Norito Kawakami, University of Tokyo; Shinobu Kitayama, University of Michigan

https://doi.org/10.3886/ICPSR34969.v1

Version V1 ()

  • V4 [2020-07-07]
  • V3 [2019-03-28] unpublished
  • V2 [2018-03-20] unpublished
  • V1 [2014-07-03] unpublished

You are viewing an older version of this study. A newer version is available ()

Additional details may be in the Version History or Data Collection Notes fields of the study metadata.

2014-07-03 This is a subsample of the MIDJA Survey.

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Summary

The MIDJA Biomarker study obtained biological assessments from a subsample (n=382) of MIDJA Survey (ICPSR 30822) respondents (N=1027). Participants traveled to a clinic near the University of Tokyo campus where Biomarker data (vital signs, morphometric assessments, blood assays, and medication data) were obtained. Participants also provided daily saliva samples for cortisol assessment and completed a self-administered medical history questionnaire. The questionnaire included assessments of conditions and symptoms, major health and life events, nutrition/diet, and additional psychosocial measures (anxiety, depression, relationship quality, control etc.). These measures parallel those in a national longitudinal sample of midlife Americans known as MIDUS (ICPSR 4652: MIDUS II and ICPSR 2760: MIDUS I). The central objective is to compare the Japanese sample (MIDJA) with the United States sample (MIDUS) to test the hypotheses regarding cultural differences in aging health and well-being as well as in how psychosocial factors are linked with biological factors known to influence profiles of disease and disability.

Citation

Markus, Hazel, Coe, Christopher, Ryff, Carol, Karasawa, Mayumi, Kawakami, Norito, and Kitayama, Shinobu. Survey of Midlife in Japan (MIDJA): Biomarker Project, 2009-2010. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2014-07-03. https://doi.org/10.3886/ICPSR34969.v1

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Subject Terms

Geographic Coverage

Asia   Tokyo   Japan   Global

Smallest Geographic Unit

city

Distributor(s)

Inter-university Consortium for Political and Social Research
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Time Period(s)

2009-01 -- 2010-04

Date of Collection

2009-01 -- 2010-04

Data Collection Notes

  1. This deposit is a new addition to the Midlife Development in the United States (MIDUS) Series

  2. The title of this study was changed from Survey of Midlife Development in Japan (MIDJA): Biomarker Project, 2009-2010, to Survey of Midlife in Japan (MIDJA): Biomarker Project, 2009-2010, on May 9, 2017.

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Sample

There were two eligibility criteria for this second phase of the data collection: (1) completed the initial survey phase and (2) expressed interest in participating in the second, biomarker, phase by returning a post card to CRS as described above.

Universe

A subsample of the MIDJA Survey sample (ICPSR 30822) which is comprised of non-institutionalized, Japanese-speaking adults, aged 30-79 and living in one of the 23 wards of Tokyo from April 2008-September 2008.

Unit(s) of Observation

individual

Data Type(s)

Presence of Common Scales

See the "Documentation of Scales and Constructed Variables in MIDJA Biomarker" available through the ICPSR and NACDA Web sites for complete information regarding the scales for the MIDJA Biomarker data collection.

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Original Release Date

2014-07-03

Version History

2014-07-03 This is a subsample of the MIDJA Survey.

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Weight

None

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