Table 2.
Results of each variables on the percentage for sleep N3 stage by univariate linear regression analysis.
| Variables | Coefficient ± standard error (P value) |
|---|---|
| Age | –0.079 ± 0.005 (<.001) |
| Sex | –1.028 ± 0.158 (<.001) |
| HTN | –1.062 ± 0.161 (<.001) |
| DM | –0.690 ± 0.243 (.005) |
| Dyslipidemia | –0.610 ± 0.207 (.003) |
| CKD | –0.834 ± 0.436 (.056) |
| Parkinson disease | –0.995 ± 0.812 (.220) |
| Dementia | –1.698 ± 1.432 (.236) |
| Chronic tinnitus | –0.503 ± 0.160 (.002) |
| Subjective insomnia | –0.275 ± 0.059 (<.001) |
| Sleep onset | 0.003 ± 0.002 (.202) |
| Sleep efficiency | 0.011 ± 0.005 (.021) |
| REM | 0.033 ± 0.010 (.001) |
| AHI | –0.029 ± 0.003 (<.001) |
| ODI | –0.025 ± 0.003 (<.001) |
| Mean O2% | 0.207 ± 0.027 (<.001) |
| Minimal O2% | 0.052 ± 0.008 (<.001) |
| O2% <90 | –0.028 ± 0.005 (<.001) |
| O2% <85 | –0.033 ± 0.008 (<.001) |
AHI = apnea–hyponea index, CKD = chronic kidney disease, DM = diabetes mellitus, HTN = hypertension, ODI = oxygen desaturation index, REM= rapid eye movement.