Aging & Longevity

Migration Effects on Cognition: Protocol for the Aging in Kerala Americans Research Study.

TL;DR

The AKKARE study protocol describes a longitudinal cohort study designed to examine migration effects on cognitive aging in 400 first-generation Kerala American older adults, assessing immigrant, cultural, biological, and vascular factors over up to 5 years.

Key Findings

Asian American people represent the fastest growing population group in the United States but are typically aggregated in national studies, masking potential health disparities.

  • Asian American groups are described as 'highly diverse linguistically, culturally, and demographically'
  • Aggregation of Asian American groups in most national studies masks potential health disparities
  • Racial and ethnic minorities, especially first-generation immigrants, are at 'particularly elevated risk of cognitive impairment'

The AKKARE study proposes to enroll 400 older first-generation Kerala American individuals from the tristate area.

  • Target enrollment is 400 first-generation Kerala American older adults
  • Participants are recruited from the tristate area
  • A subset of 360 participants will complete blood tests
  • A smaller subset of 160 participants will complete neuroimaging studies

The AKKARE study will assess both positive and negative migration effects on cognition and dementia in first-generation Kerala Americans.

  • The study aims to examine 'both positive and negative migration effects on health'
  • Domains assessed include cognitive function, mood, and quality of life
  • The study assesses migration effects from 'epidemiological, biological, and vascular perspectives'
  • Immigration and cultural effects as well as social relations will be examined as factors

The AKKARE study will conduct longitudinal follow-up assessments at 12-month intervals for up to 5 years.

  • Follow-up assessments are planned at 12-month intervals
  • The follow-up period extends for up to 5 years
  • The study was funded by the US National Institutes of Health in 2024 under grant #1R01AG084567-01
  • IRB approval was received from Stony Brook University Institutional Review Board to start the study in 2025
  • Enrollment began in September 2025

There is currently a lack of fundamental data on the epidemiology of aging diseases in Indian American immigrants.

  • The authors state 'there is presently a lack of fundamental data on the epidemiology in diseases of aging in Indian American immigrants'
  • The AKKARE study is intended to 'provide new insights into factors of risk and resilience associated with cognitive impairment' in this group
  • Findings are expected to have relevance to the 'broader older adult population' beyond Indian Americans

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Citation

Cotton K, Adhikari D, Ambrose A, Ayers E, Blumen H, Ceïde M, et al.. (2026). Migration Effects on Cognition: Protocol for the Aging in Kerala Americans Research Study.. JMIR research protocols. https://doi.org/10.2196/85493