Table 1.

Excessive sleepiness plus associated symptoms by demographic characteristics, NCS-R (n=5,692)

Characteristics		N	Excessive sleepiness
			% (SE)	OR (95% CI)
Total		1,742	23.3 (0.9)	-
Sex	Male	2,382	20.2 (1.1)	Reference
	Female	3,310	26.1 (1.1)	1.40 (1.20 – 1.62)
Age Group	18–29 yrs	1,371	26.7 (1.6)	Reference
	30–44 yrs	1,826	25.3 (1.3)	0.93 (0.76 – 1.13)
	45–59 yrs	1,521	21.2 (1.2)	0.74 (0.60 – 0.91)
	60+ yrs	974	19.6 (2.1)	0.67 (0.52 – 0.87)
Race/Ethnicity	Hispanic	527	22.7 (2.0)	0.94 (0.73 – 1.20)
	Non-Hispanic Black	717	19.5 (2.1)	0.77 (0.59 – 1.01)
	Other	268	26.3 (2.7)	1.14 (0.84 – 1.54)
	Non-Hispanic White	4,180	23.9 (1.0)	Reference
Family Income a	Low	1,177	23.5 (1.4)	1.21 (1.01 – 1.45)
	Low average	1,267	25.7 (1.5)	1.36 (1.13 – 1.65)
	High average	1,885	23.9 (1.3)	1.24 (1.02 – 1.50)
	High	1,363	20.2 (1.3)	Reference
Employment Status	Working	3,918	23.2 (1.0)	Reference
	Student	143	21.2 (3.7)	0.89 (0.55 – 1.44)
	Homemaker	340	21.0 (2.5)	0.88 (0.64 – 1.20)
	Retired	682	21.1 (2.3)	0.88 (0.68 – 1.15)
	Other	609	29.4 (2.0)	1.38 (1.11 – 1.70)
Body Mass Index b	< 18.5	93	17.5 (5.2)	0.71 (0.33 – 1.50)
	18.5 - < 25.0	2,135	23.0 (1.3)	Reference
	25.0 - < 30.0	1,853	22.3 (1.2)	0.96 (0.78 – 1.17)
	30.0 – 35.0	932	24.6 (2.2)	1.09 (0.87 – 1.36)
	> 35.0	586	27.8 (2.2)	1.29 (1.01 – 1.64)

% (SE) = prevalence (standard error); OR (95% CI) = unadjusted odds ratio and 95% confidence interval;

^aFamily income was assessed relative to the federal poverty line, which was categorized as low income (less than 1.5 times the poverty line), low-average income (1.5–3.0 times the poverty line), high-average income (3.0–6.0 times the poverty line), and high income (greater than 6.0 times the poverty line);

^bExcluded 93 respondents with missing BMI; Numbers in bold represent significant findings