Table 6.

Mortality Risk^* With Untreated Sleep-Disordered Breathing (n = 1396)^**

Baseline AHI category	All-cause mortality Hazard Ratio (95% CI)	Cardiovascular mortality Hazard Ratio (95% CI)
None: 0 – < 5	Reference	Reference
Mild: 5 – < 15	1.4 (0.7, 2.6)	1.3 (0.4, 4.1)
Moderate: 15 – < 30	1.7 (0.7, 4.1)	1.5 (0.3, 7.3)
Severe: ≥30	3.8 (1.6, 9.0)	5.2 (1.4, 19.2)
	P trend = 0.004	P-trend = 0.03

^*Hazard ratios adjusted for age, age², sex, body mass index, and body mass index²

^**126 persons who reported usual use of continuous positive air pressure (CPAP) ≥ 4 nights per week were excluded from sample

AHI denotes number of apnea and hypopnea events per hour of sleep, CI denotes confidence interval