Table 4

 Stepwise multiple regression analysis of the relationship between homocysteine levels and various independent variables

Variableβ95% CI(lower bound)95% CI(upper bound)p Value
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.
HDL-cholesterol–2.756–5.382–0.1300.040
Age0.016–0.0570.0890.590
Total cholesterol–0.057–0.6970.5820.500
Triglyceride0.374–0.1970.9440.562
LDL-cholesterol–0.129–0.8630.6050.629
BMI–0.058–0.1740.0580.642
ESS0.041–0.6060.1430.469
AHI–0.028–0.0590.0030.775
%TST <90%–0.630–3.3952.1340.792
Basal Sao20.103–0.0920.2970.736
Min Sao20.0780.0070.1500.557
DI–0.010–0.0450.0250.344
Smoking–0.530–0.0020.0530.873