Table 2 Stepwise multiple regression analysis of the relationship between C‐reactive protein (CRP) levels and various independent variables.
| Variable | β | 95% CI (lower bound) | 95% CI (upper bound) | p Value |
|---|---|---|---|---|
| BMI | 0.221 | 0.065 | 0.376 | <0.001 |
| Total cholesterol | 0.142 | 0.025 | 0.258 | 0.043 |
| ESS | 0.095 | 0.002 | 0.202 | 0.079 |
| AHÍ | 0.015 | –0.027 | 0.056 | 0.289 |
| Basal Sao2 | 0.046 | –0.214 | 0.305 | 0.172 |
| Min Sao2 | –0.058 | –0.155 | 0.039 | 0.485 |
| %TST <90% | 1.427 | –1.749 | 4.603 | 0.738 |
| DI | 0.047 | 0.002 | 0.092 | 0.573 |
| Age | –0.011 | –0.110 | 0.086 | 0.982 |
| Smoking | –0.018 | –1.482 | 1.445 | 0.907 |
| LDL‐cholesterol | –0.654 | –1.615 | 0.308 | 0.225 |
| HDL‐cholesterol | –0.574 | –3.836 | 2.687 | 0.873 |
| Triglyceride | –0.083 | –0.851 | 0.686 | 0.792 |
β represents parameter estimates and CI the 95% confidence interval of the parameter estimates. Groups are included as covariates.
BMI, body mass index; ESS, Epworth Sleepiness Scale; AHI, apnoea/hypopnoea index; TST, total sleep time; Sao2, oxygen saturation; DI, desaturation index.