Table 4 Baseline sociodemographic and lifestyle characteristics of the NHANES 2009–2014 study sample according to sleep outcomes (N = 14,956)

 Male

7382

37.4

22.9

 Female

7574

34.9

31.9

 p

0.01

<.0001

  < 30 years

2558

34.4

16.8

 30–39 years

2454

38.2

22.7

 40–49 years

2531

42.9

30.0

 50–59 years

2420

38.2

35.3

  ≥ 60 years

1444

29.9

30.9

 p

<.0001

<.0001

 Hispanic

3510

38.6

18.0

 NH White

6590

33.0

30.7

 NH Black

3175

51.5

24.8

 Other

1681

38.2

19.5

 p

<.0001

<.0001

 Underweight (BMI < 18.5)

385

38.9

25.7

 Normal weight (BMI 18.5–24.9)

4114

32.5

24.2

 Overweight (BMI 25.0–29.9)

1130

34.7

25.5

 Obese (BMI ≥ 30)

1733

40.1

32.0

 p

<.0001

<.0001

 Never Smoker

8263

33.7

22.5

 Current Smoker

3101

46.5

34.2

 Former smoker

1088

33.4

33.6

 p

<.0001

<.0001

 Never married

2874

36.8

22.9

 Married/living with partner

8717

34.5

25.9

 Separated, divorced, widowed

1154

40.9

37.6

 p

<.0001

<.0001

  < 9 years

1406

35.1

23.1

 9–11 years

2169

40.5

27.0

 12 years

3335

40.1

30.1

  > 12 years

8046

34.1

27.0

 p

<.0001

0.0033

 None

8851

39.0

28.0

 Any

6105

32.7

26.9

 p

<.0001

0.27

 No Poverty (PIR ≥ 1.0)

10740

35.0

27.3

 Any Poverty (PIR < 1.0)

4216

40.5

28.5

 p

<.0001

0.31

 None

10324

33.9

26.0

 Any

4632

43.5

32.3

 p

<.0001

<.0001