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Table 3 Characteristics of people with amalgam fillings in both genders

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

Variable Logistic regression model
Men Women
OR 95 % CI OR 95 % CI
Amalgam fillings     
 No 1.00 - 1.00 -
 Yes 1.07 0.962-1.196 1.132 1.022-1.254
Age 1.09 1.084-1.096 1.085 1.080-1.090
Income (NT$)     
 Dependent 1.278 1.156-1.413 1.455 1.335-1.585
 1–20,000 1.162 1.052-1.284 1.452 1.297 -1.625
 20,001-40,000 1.00 - 1.00 -
 >40,000 0.945 0.656-1.360 1.770 1.113-2.815
Region     
 Area 1a 0.838 0.740-0.950 0.650 0.579-0.730
 Area 2b 1.00 - 1.00 -
 Area 3c 1.302 1.142-1.484 0.991 0.878-1.118
 Area 4d 1.409 1.234-1.610 1.087 0.963-1.228
 Area 5e 0.801 0.692-0.929 0.695 0.606-0.796
 Area 6f 0.881 0.685-1.134 0.611 0.466-0.800
  1. Odds ratio was adjusted for age, income, and residential region
  2. aArea 1 (Taipei): Taipei City and County, Yilan County, Keelung City, Kinmen County, and Lienhiang County)
  3. bArea 2 (Northern): Taoyuan County, Hsinchu County, Miaoli County, and Hsinchu City
  4. cArea 3 (Central): Taichung City, Taichung County, Changhua County, and Nantou County
  5. dArea 4 (Southern): Tainan City and County, Chiayi City and County, Yunlin County
  6. eArea 5 (Kao-Ping): Kaohsiung City and County, Pingtung County, Penghu County
  7. fArea 6 (Eastern): Hualin and Taitung County