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Table 2 Logistic regression analysis of factors associated with Alzheimer’s disease

From: Association between dental amalgam fillings and Alzheimer’s disease: a population-based cross-sectional study in Taiwan

Variable Logistic regression model
OR 95 % CI
Amalgam fillings   
 None 1.000 -
 Yes 1.105 1.025-1.190
Age 1.087 1.083-1.090
Sex   
 Female 1.031 0.976-1.088
 Male 1.000 -
Income (NT$)   
 Dependent 1.374 1.287-1.466
 1–20,000 1.287 1.195-1.386
 20,001-40,000 1.000 -
 >40,000 1.175 0.883-1.565
Region   
 Area 1 (Taipei) 0.735 0.675-0.800
 Area 2 (Northern) 1.000 -
 Area 3 (Central) 1.127 1.032-1.232
 Area 4 (Southern) 1.226 1.120-1.341
 Area 5 (Kao-Ping) 0.734 0.672-0.821
 Area 6 (Eastern) 0.732 0.609-0.880
  1. Odds ratio was adjusted for age, gender, insurance level, and residential region
  2. OR odds ratio, CI confidence interval