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Table 3 Factors associated with the incidence of dementia

From: The effect of missing teeth on dementia in older people: a nationwide population-based cohort study in South Korea

Effect Odds Ratio Estimates p-value
Point Estimate 95% Wald Confidence Limits
History of tooth extraction (standard = no history) 1.180 1.146 1.215 <.0001a
Female (standard = male) 1.326 1.286 1.367 <.0001a
Age 70–79 (standard = 60–69) 1.882 1.827 1.938 <.0001a
≥80 (standard = 60–69) 2.378 2.216 2.553 <.0001a
Urban resident (standard = rural resident) 1.330 1.294 1.367 <.0001a
Eligibility Family member (standard = head of household) 1.005 0.975 1.035 0.7616
Medical aid beneficiaries (standard = head of household) 1.497 1.414 1.585 <.0001a
Income level Second quintile (standard = first quintile) 0.980 0.930 1.032 0.4347
Third quintile (standard = first quintile) 0.947 0.900 0.997 0.0368a
Fourth quintile (standard = first quintile) 0.938 0.895 0.984 0.0080a
Fifth quintile (standard = first quintile) 0.952 0.911 0.994 0.0266a
History of periodontal treatment (standard = no history) 0.962 0.932 0.992 0.0132a
History of dental caries (standard = no history) 1.067 1.035 1.101 <.0001a
  1. aStatistically significant at 95% Confidence Interval