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Table 2 Attrition rates per sample and wave

From: Frailty effects on non-demented cognitive trajectories are moderated by sex and Alzheimer’s genetic risk

 

Wave 1

Wave 2

Wave 3

 

Return

Non Return

Return

Non Return

Sample One

n

58

49

9 (15.5%)

38

11 (22.4%)

Sample Two

n

179

146

33 (18.4%)

–

–

Sample Three

n

394

333

61 (15.4%)

300

33 (10%)

  1. Note. Results presented as n (% attrition). Due to ongoing data collection, Sample two did not contribute a third data point to this study
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Alzheimer's Research & Therapy

ISSN: 1758-9193