Table 5.

Association between sleep duration and self-rated health (SRH), by body mass index categories

Sleep duration	Weighted prevalence, %	Age, sex-adjusted OR (95% CI)†	Multivariable OR (95% CI)*†
Non-obese (n = 14499)
≤ 5 h	19.8	4.15 (3.26-5.28)	2.55 (1.94-3.36)
6 h	9.5	1.78 (1.45-2.20)	1.55 (1.25-1.92)
7 h	5.7	1 (Referent)	1 (Referent)
8 h	9.7	1.65 (1.37-1.99)	1.38 (1.13-1.68)
≥ 9 h	21.0	3.33 (2.66-4.16)	2.05 (1.59-2.63)
Obese (n = 6164)
≤ 5 h	29.0	3.05 (2.33-3.97)	1.98 (1.47-2.67)
6 h	22.9	2.19 (1.73-2.76)	1.85 (1.42-2.41)
7 h	12.3	1 (Referent)	1 (Referent)
8 h	18.5	1.57 (1.26-1.96)	1.36 (1.06-1.73)
≥ 9 h	30.5	2.82 (2.17-3.65)	1.78 (1.34-2.36)

OR, odds ratio; CI, confidence interval.

^*Adjusted for age (years), sex (female, male), race-ethnicity (non-Hispanic white, non-Hispanic blacks, Mexican Americans, others), 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), 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.