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Table 1 Participant descriptive characteristics (n = 81)

From: Older adults at greater risk for Alzheimer’s disease show stronger associations between sleep apnea severity in REM sleep and verbal memory

 

Mean [SD]

Demographics

 PSG age (years)

61.68 [6.0]

 RAVLT age (years)

61.38 [6.13]

 Time between PSG and RAVLT

0.31 [0.50]

 Female (n; %)

49; 60%

APOE ε4-positive genotype (n; %)

26; 32%

 Parental history of AD (n; %)

56; 69%

 Both APOE ε4-positive genotype and parental history of AD

21; 26%

 Years of education

16.43 [2.41]

 BMI

28.10 [5.53]

Primary Race

 White (n; %)

71; 87.8%

 Black or African American (n; %)

9; 11.1%

 Asian (n; %)

1; 1.2%

Ethnicity

 Non-Hispanic (n; %)

79; 97.5%

 Hispanic (n; %)

1; 1.2%

 Unknown (n; %)

1; 1.2%

RAVLT

 Total Learning

51.63 [10.48]

 Short-Delay Recall

10.77 [2.89]

 Long-Delay Recall

10.22 [3.17]

  1. PSG polysomnography, RAVLT Rey Auditory Verbal Learning Test, APOE apolipoprotein E, AD Alzheimer’s Disease, APOE4 genotyping missing from one participant, BMI missing from one participant