TABLE 4.

ADJUSTED RELATIVE HAZARDS OF CANCER MORTALITY ACCORDING TO SLEEP-DISORDERED BREATHING CATEGORIES STRATIFIED ACCORDING TO OBESITY STATUS AND PRESENCE OF SEVERE DAYTIME SLEEPINESS

	Obesity Present		Sleepiness Present
SDB (AHI Range)	Yes	No	Yes	No
Absent (<5)	1.0	1.0	1.0	1.0
Mild SDB (5–14.9)	1.1	1.1	0.6	1.5
Moderate SDB (15–29.9)	0.5	4.5†	1.0	2.8
Severe SDB (≥30)*	4.1†	5.2	3.9	4.9†
P for trend	0.085	0.0171	0.19	0.0124

Definition of abbreviations: AHI = apnea-hypopnea index; CPAP = continuous positive airway pressure; SDB = sleep-disordered breathing.

Adjusted for age (time scale), sex, BMI, BMI², and smoking.

^*Includes participants who were subject to CPAP treatment during the polysomnography study (n = 9).

^†P < 0.05.