Table 2. Results of logistic regression analysis using Sleep Apnea Plus as the dependent variable.

Independent Variable	Wald Statistic (Wald F)	Significance level (Bonferroni Correction)	Odds ratio (95% CI) (OSA+Insomnia vs OSA-Insomnia)*
‘Essential hypertension’	10.400	0.001	1.83 (1.27–2.65)
‘Cerebrovascular disease’	7.209	0.007	6.58 (1.66–26.08)
‘Heart failure’	0.937	0.333	0.42 (0.07–2.46)
‘Cardiac dysrhythmia’	0.007	0.934	0.93 (0.15–5.90)
‘Ischemic heart disease’	0.896	0.344	0.39 (0.05–2.77)
‘Depressive disorders’	0.129	0.720	0.81 (0.26–2.51)
‘Anxiety disorders’	0.000	0.988	1.01 (0.27–3.75)
‘Adjustment Disorders’	0.704	0.402	0.40 (0.05–3.38)
Sex (male vs. female)	0.408	0.523	0.89 (0.62–1.28)
Race (White vs. Non-White)	0.090	0.764	0.91 (0.47–1.74)
‘Obesity’	25.434	0.000	0.08 (0.03–0.22)
‘Diabetes’	0.887	0.347	0.55 (0.16–1.90)
‘Hyperlipidemia’	0.010	0.921	1.07 (0.25–4.68)
‘Medications’ (any medication vs no medication)	3.833	0.051	0.63 (0.39–1.00)
‘Hypersomnia’	0.888	0.346	1.47 (0.66–3.29)

*Corrected model using all variables significant at p<.001, with pseudo R² (Nagelkerke's) = 0.046.