Table 1:

Participant Characteristics

Characteristic	Control (n = 5)*	Sleep-Deprived (n=5)*
Age, years
Mean (SD)	48.12 (10.18)	48.02 (10.3)
Sex, M/F	2/3	2/3
Race, C/AA	2/3	2/3
MMSE
Mean (SD)	28.8 (0.84)	28.8 (0.17)
CSF Aβ42/40 at hour 0
Mean (SD)	0.202 (0.076)	0.165 (0.018)
Plasma Aβ42/40 at hour 0
Mean (SD)	0.149 (0.006)	0.137 (0.007)
SSS on Day of Catheter Placement
Mean (SD)	1.6 (0.89)	1.8 (1.30)
Overnight TST (min)
Mean (SD)	410.2 (52.7)	27.9 (27.1)
Overnight SE (%)
Mean (SD)	73.6 (9.8)	5.1 (4.9)

AA = African American; C = Caucasian; F = female; M = male; MMSE = Mini-Mental State Examination; CSF = cerebrospinal fluid; Aβ = amyloid-β; SSS = Stanford Sleepiness Scale; TST = total sleep time; SE = sleep efficiency; SD = standard deviation.

^*5 participants completed both the sleep-deprived and normal sleep groups with interventions 4–6 months apart; all assessments were completed for each intervention group.