Table 6.
Associations between sleep parameters and computed product (Aβ42 × T-Tau).
| Variable (events/h) | Beta coefficient |
|---|---|
| (95% confidence interval) | |
| Oximetry parameters | |
| ODI-3% (events/h) | 0.41 (0.08 to 0.74)* |
| SDB indices (events/h) | |
| AHI | 0.40 (0.06 to 0.74)* |
| AI | 0.21 (−0.12 to 0.54) |
| AINREM | 0.20 (−0.13 to 0.54) |
| AIREM | 0.19 (−0.16 to 0.54) |
| HI | 0.35 (−0.03 to 0.72) |
| HINREM | 0.36 (−0.0 to 0.72) |
| HIREM | 0.17 (−0.25 to 0.59) |
| Arousal indices (events/h) | |
| ArI | 0.26 (−0.07 to 0.59) |
| ArINREM | 0.26 (−0.06 to 0.59) |
| ArIREM | 0.08 (−0.3 to 0.45) |
| Sp-ArI | −0.11 (−0.46 to 0.24) |
| Sp-ArINREM | −0.12 (−0.47 to 0.23) |
| Sp-ArIREM | −0.12 (−0.46 to 0.21) |
| R-ArI | 0.34 (0.02 to 0.66)* |
| R-ArINREM | 0.35 (0.04 to 0.67)* |
| R-ArIREM | 0.13 (−0.24 to 0.51) |
ODI-3%, oxygen desaturation index ≥3%; SDB, sleep-disordered breathing; AHI, apnea–hypopnea index; AI, apnea index; AINREM, apnea index in the non-rapid eye movement stage; AIREM, apnea index in rapid eye movement stage; HI, hypopnea index; HINREM, hypopnea index in non-rapid eye movement stage; HIREM, hypopnea index in rapid eye movement stage. ArI, arousal index; ArINREM, arousal index in non-rapid eye movement stage; ArIREM, arousal index in rapid eye movement stage; Sp-ArI, spontaneous arousal index; Sp-ArINREM, spontaneous arousal index in non-rapid eye movement stage; Sp-ArIREM, spontaneous arousal index in rapid eye movement stage; R-ArI, respiratory arousal index; R-ArINREM, respiratory arousal index in non-rapid eye movement stage; R-ArIREM, respiratory arousal index in rapid eye movement stage.
Multivariable linear regression models were adjusted for age, sex, and body mass index.
p < 0.05.