. Author manuscript; available in PMC: 2021 Feb 1.

Published in final edited form as: Sleep Health. 2019 Nov 21;6(1):71–78. doi: 10.1016/j.sleh.2019.09.003

TABLE 3.

Risk of all-cause mortality associated with cognitive impairment, cardiometabolic conditions and possible vascular cognitive impairment

Cardiometabolic Conditions	Cognitive Impairment	Group Label	n	Overall	≥ 6 hours	< 6 hours	P for interaction
No	No	Reference	505	1.00	1.00	1.00
No	Yes	Cognitive Impairment	33	1.02 (0.51-1.96)	1.10 (0.33-3.69)	1.02 (0.46-2.30)	0.04
Yes	No	Cardiometabolic Conditions	864	1.62 (1.26-2.09)	1.44 (0.99-2.09)	1.78 (1.27-2.50)
Yes	Yes	Possible VCI	122	3.14 (2.22-4.45)	1.40 (0.70-2.82)	4.09 (2.71-6.18)

Data are hazard ratios (95% confidence intervals) adjusted for age, race, sex, education, body mass index, apnea/hypopnea index, smoking, alcohol, sleep difficulty, mental health problems, and other physical health problems. VCI = vascular cognitive impairment