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Table 1 Characteristics of total sample and subpopulations who are "very likely" to obtain preclinical AD test

From: Would you want to know? Public attitudes on early diagnostic testing for Alzheimer's disease

   Entire sample Very likely to get early medical test for AD
Entire sample    30.0% [28.1 to 31.9]
Have/had immediate blood relative with AD     
  No 77.1% [75.2 to 79.0] 27.8%*** [25.7 to 30.1]
  Yes 22.9% [21.0 to 24.8] 35.3% [31.2 to 39.7]
Served as decision-maker or caretaker for AD patient     
  No 83.0% [81.4 to 84.7] 27.9%* [25.8 to 30.0]
  Yes 17.0% [15.3 to 18.6] 40.4% [35.6 to 45.5]
Worried will get Alzheimer's disease     
  Not too/not at all/don't know/refused 55.3% [53.1 to 57.5] 23.5%** [21.2 to 26.0]
  Very/somewhat worried 44.7% [42.5 to 46.9] 38.1% [35.1 to 41.2]
Health status     
  Fair/poor 20.3% [18.5 to 22.2] 34%* [29.8 to 38.4]
  Excellent/very good/good 79.7% [77.8 to 81.5] 28.9% [26.8 to 31.1]
Think AD is fatal     
  No/Don't know/refused 55.5% [53.3 to 57.7] 28.9% [26.4 to 31.5]
  Yes 44.5% [42.3 to 46.7] 31.4% [28.6 to 34.4]
Marital status     
  No 46.3% [44.1 to 48.6] 28.9% [26.1 to 31.9]
  Yes 53.7% [51.4 to 55.9] 30.9% [28.4 to 33.6]
Expect paid caregiver to be primary caretaker if develop AD     
  No 70.8% [68.7 to 72.8] 28.6%* [26.3 to 30.9]
  Yes 29.2% [27.2 to 31.3] 33.4% [29.8 to 37.2]
Believe an effective AD treatment is available now or will be in five years     
  No/don't know/refused 32.1% [30.0 to 34.2] 28.5% [25.3 to 32.0]
  Yes 67.9% [65.8 to 70.0] 30.8% [28.4 to 33.2]
Age     
  18 to 29 23.7% [21.7 to 25.8] 25.3%** [21.3 to 29.9]
  30 to 49 37.2% [35.1 to 39.4] 25.1% [22.2 to 28.2]
  50 to 64 21.6% [19.9 to 23.3] 36.9% [33.1 to 40.9]
  65 to 74 11.6% [10.2 to 13.0] 38.9% [33.2 to 45.0]
  75 to 85+ 5.9% [4.9 to 6.9] 34.3% [27.0 to 42.3]
Gender     
  Male 48.2% [46.0 to 50.5] 27.7%* [24.9 to 30.5]
  Female 51.8% [49.5 to 54.0] 32.2% [29.6 to 34.9]
Educational attainment     
  Low 32.5% [30.4 to 34.6] 32.4%* [29.0 to 35.9]
  Middle 30.2% [28.1 to 32.3] 32.1% [28.6 to 35.9]
  High 37.3% [35.1 to 39.5] 25.9% [23.0 to 29.0]
Country     
  France 20.8% [19.0 to 22.6] 26.8%*** [22.9 to 31.2]
  Germany 17.9% [16.2 to 19.7] 23.6% [19.7 to 28.0]
  Poland 17.8% [16.1 to 19.5] 30.5% [26.2 to 35.2]
  Spain 18.4% [16.6 to 20.1] 39.6% [34.9 to 44.4]
  United States 25.1% [23.1 to 27.0] 29.7% [26.0 to 33.7]
Race (U.S. Only, N = 639)     
  White 68.3% [64.3 to 72.4] 25.3% [21.1 to 30.0]
  Black 11.6% [9.1 to 13.9] 45.1% [34.6 to 56.0]
  Hispanic 14.1% [11.3 to 16.9] 34.7% [25.7 to 44.8]
  Other (Asian, Pacific Islander, Native American, Other) 6.1% [3.1 to 8.9] 39.1% [18.1 to 65.2]
Would see doctor if showing symptoms of AD     
  No 9.2% [7.8 to 10.5] 19%** [13.3 to 26.6]
  Yes 90.8% [89.5 to 92.2] 31.4% [29.4 to 33.5]
  1. N = 2,678; *P < .05; **P < .01; ***P < .001 using chi-square tests of differences between expected and observed distributions. Sample sizes vary across categories due to missing data. Confidence intervals in brackets.