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Table 2 Incidence rates (1000 person-years) of dementia onset by sex, age, and educational attainment

From: An additive effect of leading role in the organization between social participation and dementia onset among Japanese older adults: the AGES cohort study

  Young-old Old-old
Incidence rate 95% CI Incidence rate 95% CI
Sex
 Male 9.3 8.3–10.4 36.2 32.8–39.9
 Female 9.3 8.4–10.5 43.9 40.7–47.4
Age
 65–69 5.5 4.8–6.4
 70–74 14.3 13.0–15.8
 75–79 31.3 28.8–34.1
 80–84 51.5 46.3–57.3
  ≥ 85 83.3 71.8–96.8
Educational attainment
  < 10 yrs 10.2 9.2–11.3 42.6 39.4–45.9
  ≥ 10 yrs 8.9 7.8–10.1 36.2 32.6–40.1