Table 3.
Factors associated with the severity of OSAS among all the participants by multivariate linear regression analyses.
| Variables | Beta | Statistics t value | P | 95% CI |
|---|---|---|---|---|
| Gender | 0.005 | 0.114 | 0.909 | (− 3.904, 4.835) |
| ESS scoring | 0.055 | 1.866 | 0.063 | (− 0.012, 0.479) |
| Height | 0.066 | 1.652 | 0.099 | (− 0.037, 0.432) |
| Weight | − 0.101 | − 0.328 | 0.743 | (− 1.249, 0.891) |
| BMI | 0.167 | 4.937 | 0.000** | (0.627, 1.456) |
| SBP before sleep | − 0.042 | − 0.840 | 0.401 | (− 0.220, 0.088) |
| DBP before sleep | 0.041 | 0.876 | 0.381 | (− 0.109, 0.285) |
| SBP awake in the morning | 0.135 | 2.622 | 0.009** | (0.052, 0.360) |
| DBP awake in the morning | 0.006 | 0.119 | 0.905 | (− 0.193, 0.217) |
| N1 latent period | − 0.101 | − 0.328 | 0.743 | (− 1.249, 0.891) |
| SWS latent period | 0.074 | 2.491 | 0.013** | (0.005, 0.040) |
| SWS duration | − 0.018 | − 0.624 | 0.533 | (− 0.060, 0.031) |
| TST/TIB (%) | − 0.017 | − 0.550 | 0.583 | (− 0.155, 0.087) |
| SpO2 (%) | ||||
| Average | − 0.065 | − 2.011 | 0.045** | (− 1.829, − 0.021) |
| Minimum | − 0.539 | − 14.665 | 0.000** | (− 1.228, − 0.938) |
SBP systolic blood pressure, DPB diastolic blood pressure, BMI body mass index, ESS Epworth sleepiness scale.
**P value < 0.05.