Table 4.

Association between sleep duration and self-rated health (SRH), by race-ethnicity

Sleep duration	Weighted prevalence, %	Age, sex-adjusted OR (95% CI)†	Multivariable OR (95% CI)*†
Non-Hispanic whites (n = 12567)
≤ 5 h	23.8	4.23 (3.36-5.34)	2.39 (1.83-3.13)
6 h	13.1	2.08 (1.70-2.54)	1.65 (1.33-2.05)
7 h	6.9	1 (Referent)	1 (Referent)
8 h	11.2	1.54 (1.29-1.84)	1.36 (1.11-1.66)
≥ 9 h	25.5	3.59 (2.94-4.38)	2.26 (1.79-2.86)
Non-Hispanic blacks (n = 3115)
≤ 5 h	23.0	3.51 (2.38-5.20)	2.59 (1.72-3.90)
6 h	17.4	2.43 (1.76-3.35)	2.62 (1.81-3.78)
7 h	8.6	1 (Referent)	1 (Referent)
8 h	18.4	2.39 (1.71-3.35)	2.27 (1.55-3.33)
≥ 9 h	25.9	3.11 (2.02-4.78)	2.35 (1.43-3.85)
Mexican Americans (n = 3457)
≤ 5 h	23.9	2.36 (1.58-3.52)	1.64 (1.09-2.46)
6 h	15.7	1.41 (0.99-2.01)	1.20 (0.80-1.82)
7 h	11.2	1 (Referent)	1 (Referent)
8 h	12.3	1.11 (0.83-1.49)	0.97 (0.70-1.35)
≥ 9 h	15.6	1.44 (0.98-2.10)	1.03 (0.69-1.54)
Others (n = 1524)
≤ 5 h	18.2	3.56 (2.04-6.22)	2.31 (1.31-4.09)
6 h	10.0	1.52 (0.95-2.44)	1.37 (0.79-2.38)
7 h	5.8	1 (Referent)	1 (Referent)
8 h	9.9	1.75 (1.02-3.01)	1.47 (0.80-2.71)
≥ 9 h	16.8	2.52 (1.26-5.04)	1.43 (0.67-3.05)

OR, odds ratio; CI, confidence interval.

^*Adjusted for age (years), sex (female, male), education (< high school, high school, > high school), smoking categories (never, former, current), alcohol intake (never drinker, former drinker, current light drinker, current moderate drinker, current heavy drinker), body mass index categories (normal, overweight, obese), no exercise (absent, present), depression categories (absent, chronic, not chronic), diabetes (absent, present), hypertension (absent, present), cardiovascular disease (absent, present).

^†The sample size for both the age, sex-adjusted, and multivariable models are the same.