Association of Plasma Homocysteine with Self-Reported Sleep Apnea Is Confounded by Age: Results from the National Health and Nutrition Examination Survey 2005-2006

Table 3

Results from the full multivariate logistic regression analysis (Model 18 in Figure 3) for the outcome of self-reported sleep apnea.

Covariate	OR	95% CI	𝑃
High plasma homocysteine	1.24	0.85–1.83	0.244
High RBC folate	1.26	0.84–1.89	0.252
Male gender	2.22	1.45–3.4	0.001
Non-Hispanic White race	1.21	0.74–1.96	0.420
Birth in the United States	1.89	0.93–3.82	0.073
BMI > 28 Kg/m^2	7.56	4.14–13.79	<0.001
High education	1.71	1.21–2.41	0.005
Married	1.60	1.07–2.39	0.025
Ever smoker	1.28	0.76–2.14	0.334
Ever alcohol use	2.01	1.3–3.11	0.004
Age > 46 years	2.19	1.39–3.44	0.002

OR: odds ratio; CI: confidence interval; P: significance value.