Table 4:
EEG Sleep Stages
| Dependent Variables | ||||||
|---|---|---|---|---|---|---|
| Time in N2 and N3 (min) | Time in REM (min) | REM Onset Latency (min) | ||||
| Covariates | Estimate (β) | p-value | Estimate (β) | p-value | Estimate (β) | p-value |
| Chronotype | 4.385 | 0.150 | −3.911 | 0.004 | 12.908 | <0.001 |
| Age | 0.890 | 0.220 | −0.911 | 0.005 | 0.512 | 0.551 |
| Sex | 21.287 | 0.004 | 2.035 | 0.530 | 47.839 | <0.001 |
| Race | −29.311 | 0.021 | −9.993 | 0.075 | −25.951 | 0.084 |
| CDR | 9.151 | 0.346 | −4.525 | 0.292 | 40.501 | <0.001 |
| ApoE4 Status | 11.123 | 0.190 | 1.352 | 0.718 | 21.078 | 0.036 |
| Aβ42/40 | 0.329 | 0.999 | −51.485 | 0.528 | 486.990 | 0.027 |
| AHI | −1.150 | 0.004 | 0.009 | 0.956 | 0.623 | 0.179 |
| PLMI | 0.001 | 0.996 | −0.039 | 0.571 | 0.331 | 0.073 |
Min, Minutes; SD, Standard Deviation; N2, Stage N2 sleep; N3, Stage N3 sleep; REM, Rapid-Eye Movement sleep; CDR, Clinical Dementia Rating; ApoE4 status = apolipoprotein E ε4 positive ; Aβ, amyloid-beta; AHI, Apnea-Hypopnea Index; PLMI, Periodic Limb Movement Index