Table 4 Stepwise multiple regression analysis of the relationship between homocysteine levels and various independent variables.
| Variable | β | 95% CI (lower bound) | 95% CI (upper bound) | p Value |
|---|---|---|---|---|
| HDL‐cholesterol | –2.756 | –5.382 | –0.130 | 0.040 |
| Age | 0.016 | –0.057 | 0.089 | 0.590 |
| Total cholesterol | –0.057 | –0.697 | 0.582 | 0.500 |
| Triglyceride | 0.374 | –0.197 | 0.944 | 0.562 |
| LDL‐cholesterol | –0.129 | –0.863 | 0.605 | 0.629 |
| BMI | –0.058 | –0.174 | 0.058 | 0.642 |
| ESS | 0.041 | –0.606 | 0.143 | 0.469 |
| AHI | –0.028 | –0.059 | 0.003 | 0.775 |
| %TST <90% | –0.630 | –3.395 | 2.134 | 0.792 |
| Basal Sao2 | 0.103 | –0.092 | 0.297 | 0.736 |
| Min Sao2 | 0.078 | 0.007 | 0.150 | 0.557 |
| DI | –0.010 | –0.045 | 0.025 | 0.344 |
| Smoking | –0.530 | –0.002 | 0.053 | 0.873 |
β represents the 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.