Table 2.

Fully adjusted proportional hazards model for mortality

Parameter	Hazard Ratio	P-value	95% CI
EDS+/SDB+	2.28	0.0003	1.46–3.57
EDS+/SDB-	1.11	0.6	0.75–1.63
EDS-/SDB+	0.74	0.3	0.39–1.38
Habitual self-report sleep duration > 8.5 h	2.11	0.03	1.06–4.22
Race (African American)	1.70	0.03	1.05–2.74
Angina	1.67	0.01	1.12–2.50
Gender (male)	1.53	0.02	1.08–2.17
Age (per one year increment)	1.09	< 0.0001	1.06–1.12

EDS, Excessive daytime sleepiness; SDB, Sleep disordered breathing (apnea-hypopnea index ≥ 20 events/h). Other categories of EDS and SDB are included in the model even though nonsignificant because they constitute the primary exposure variables. Reference category is EDS-/SDB-