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. Author manuscript; available in PMC: 2021 Jan 28.
Published in final edited form as: J Prev Alzheimers Dis. 2020;7(4):219–225. doi: 10.14283/jpad.2020.46

Table 3.

APT Webstudy Recruitment by Referral Source

Referral Source Contacted (approx) Consented to APT Registered and no consent APT % of APT consented Rate of consent to registered % Contacted that consented
Registry
  APR 75,000 11,947 555 38.98% 95.56% 15.93%
  TrialMatch 81,000 7,786 854 25.40% 90.12% 9.61%
  UCI C2C Registry 7,300 716 69 2.34% 91.21% 9.81%
  BHR 18,240 668 67 2.18% 90.88% 3.66%
  HealthyBrains 13,000 242 33 0.79% 88.00% 1.86%
Registry Total 194,540 21,359 1,578 69.69% 93.12% 10.98%
Central with UTM 234 41 0.76% 85.09%
Site with UTM 551 69 1.80% 88.87%
Total participants consented with UTM 22,144 72.25%
Total participants consented without UTM 8,506 27.75%
Total participants consented to APT 30,650 100.00%