Table 3.
Results of sleep indices, chronic tinnitus, and other variables on the percentage for sleep N3 stage by multivariate linear regression analysis.
| Variables | All | Without tinnitus | With tinnitus |
|---|---|---|---|
| AHI | –0.040 ± 0.009 (<.001) | –0.045 ± 0.012 (<.001) | –0.034 ± 0.015 (.020) |
| ODI | 0.017 ± 0.011 (.124) | 0.021 ± 0.014 (.134) | 0.013 ± 0.017 (.467) |
| Mean O2% | 0.028 ± 0.062 (.647) | –0.034 ± 0.079 (.661) | 0.148 ± 0.099 (.134) |
| Minimal O2% | –0.009 ± 0.014 (.527) | –0.012 ± 0.017 (.493) | –0.007 ± 0.023 (.762) |
| O2% <90 | 0.013 ± 0.016 (.410) | –0.013 ± 0.021 (.546) | 0.056 ± 0.024 (.019) |
| O2% <85 | –0.027 ± 0.020 (.181) | –0.013 ± 0.026 (.624) | –0.044 ± 0.033 (.178) |
| Chronic tinnitus | –0.143 ± 0.163 (.381) | ||
| Age | –0.079 ± 0.007 (<.001) | –0.083 ± 0.008 (<.001) | –0.074 ± 0.011 (<.001) |
| Sex | –1.047 ± 0.167 (<.001) | –1.237 ± 0.218 (<.001) | –0.743 ± 0.254 (.004) |
| HTN | –0.086 ± 0.179 (.633) | –0.088 ± 0.233 (.707) | 0.004 ± 0.271 (.987) |
| DM | 0.006 ± 0.252 (.981) | 0.135 ± 0.328 (.682) | –0.298 ± 0.382 (.436) |
| Dyslipidemia | –0.044 ± 0.213 (.837) | –0.025 ± 0.283 (.931) | –0.066 ± 0.310 (.832) |
| CKD | 0.035 ± 0.437 (.936) | 0.006 ± 0.643 (.993) | –0.025 ± 0.559 (.965) |
| Parkinson disease | 0.484 ± 0.818 (.555) | 0.880 ± 1.036 (.396) | –0.592 ± 1.333 (.657) |
| Dementia | –0.356 ± 1.404 (.800) | –0.849 ± 1.838 (.644) | 0.552 ± 2.151 (.797) |
| Subjective insomnia | –0.324 ± 0.062 (<.001) | –0.414 ± 0.080 (<.001) | –0.156 ± 0.094 (.098) |
| Sleep onset | 0.001 ± 0.003 (.632) | 0.004 ± 0.004 (.260) | –0.004 ± 0.005 (.373) |
| Sleep efficiency | –0.015 ± 0.006 (.016) | –0.015 ± 0.008 (.061) | –0.016 ± 0.010 (.128) |
| REM | 0.015 ± 0.010 (.143) | 0.008 ± 0.013 (.563) | 0.029 ± 0.016 (.066) |
The data in all cells were shown as coefficient ± standard error (P value).
AHI = apnea–hyponea index, CKD = chronic kidney disease, DM = diabetes mellitus, HTN = hypertension, ODI = oxygen desaturation index, REM= rapid eye movement.