Table 4.

Association of individual impairments in sleep health domains with mean total health-care costs

	CR (95% CI)
Sleep health dimension	Base model*	Multivariate Model†
Poor sleep satisfaction (n = 452)	1.09 (0.96 to 1.23)	0.95 (0.84 to 1.08)
Daytime sleepiness (n = 151)	1.23 (1.02 to 1.49)	1.03 (0.85 to 1.24)
Poor sleep timing (n = 455)	1.11 (0.98 to 1.26)	1.00 (0.88 to 1.13)
Long sleep latency (n = 562)	1.01 (0.90 to 1.14)	0.91 (0.81 to 1.03)
Short or long sleep duration (n = 690)	1.21 (1.07 to 1.35)	1.09 (0.97 to 1.22)

*Adjusted for age, race, and enrollment site.

^†Adjusted for age, race, enrollment site, number of medical conditions, functional limitations, and depressive symptoms.