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Education level and incident functional disability in elderly Japanese: The Ohsaki Cohort 2006 study

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  • Dieta Nurrika
  • Shu Zhang
  • Yasutake Tomata
  • Yumi Sugawara
  • Fumiya Tanji
  • Ichiro Tsuji

Abstract

As the factors that link education level with incident functional disability in elderly Japanese have never been investigated, the present study investigated this issue in an elderly Japanese population. A 9-year prospective cohort study (2006–2015) was conducted among 8,680 Japanese individuals (≥65 years), Ohsaki city, Japan. In a baseline survey, we collected data on education level and potential mediators. Data on incident functional disability were retrieved from the Long-term Care Insurance database. The Cox proportional hazards model was used to estimate the hazard ratios (HRs) and 95% confidence intervals (CIs) for incident functional disability by education level (below upper-secondary education (reference), and upper secondary education and above). Mediating effects were estimated using accelerated failure time model and a logistic regression model. During 9-year follow-up period, 2,742 cases (31.6%) of incident functional disability were observed, and education level showed an inverse association with functional disability (P for trend

Suggested Citation

  • Dieta Nurrika & Shu Zhang & Yasutake Tomata & Yumi Sugawara & Fumiya Tanji & Ichiro Tsuji, 2019. "Education level and incident functional disability in elderly Japanese: The Ohsaki Cohort 2006 study," PLOS ONE, Public Library of Science, vol. 14(3), pages 1-15, March.
    • Handle: RePEc:plo:pone00:0213386
    DOI: 10.1371/journal.pone.0213386
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