Table 3.

Mortality Risk with Sleep-Disordered Breathing (n = 1522): Adjusted Hazard Ratios^*

Baseline AHI category	All-cause mortality Hazard Ratio (95% CI)	Cardiovascular mortality Hazard Ratio (95% CI)
None: 0 – < 5	Reference	Reference
Mild: 5 – < 15	1.6 (0.9, 2.8)	1.8 (0.7, 4.9)
Moderate: 15 – < 30	1.4 (0.6, 3.3)	1.2 (0.3, 5.8)
Severe: ≥ 30	3.0 (1.4, 6.3)	2.9 (0.8, 10.0)
	P trend = 0.008	P trend = 0.12

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

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