Table 2 Survey-weighted participant characteristics by healthy lifestyle score (HLS: 0 or 1 healthy behavior; 2 healthy behaviors; 3 or 4 healthy behaviors) from the U.S. National Health and Nutrition Examination Survey 2011–2014.

From: Associations of healthy lifestyle and socioeconomic status with cognitive function in U.S. older adults

Characteristics

Total

(N = 1313)

0 or 1 healthy behavior (N = 341)

2 healthy behaviors

(N = 512)

3 or 4 healthy behaviors (N = 460)

Mean (SE) or %

Mean (SE) or %

Mean (SE) or %

Mean (SE) or %

Age, years

69.3 (0.3)

68.7 (0.4)

69.1 (0.4)

70.0 (0.4)

Sex

 Male

46.3%

50.1%

46.7%

42.8%

 Female

53.7%

49.9%

53.3%

57.2%

Race/ethnicity

 Non-Hispanic White

80.6%

83.7%

81.1%

77.3%

 Non-Hispanic Black

7.8%

8.4%

7.3%

7.7%

 Hispanic

6.4%

4.7%

6.4%

8.0%

 Non-Hispanic Asian

3.0%

1.1%

2.0%

5.8%

 Others

2.2%

2.1%

3.2%

1.2%

Marital status

 Never married

4.2%

3.7%

5.7%

2.9%

 Married

62.5%

59.6%

60.7%

67.1%

 Not married*

33.3%

36.7%

33.6%

30.0%

Birthplace

 Born in the U.S

90.8%

93.1%

93.5%

85.6%

 Born outside of the U.S

9.2%

6.9%

6.5%

14.4%

 Body mass index, kg/m2

28.1 (0.2)

28.5 (0.4)

29.0 (0.4)

26.8 (0.3)

Lifestyle factors

Smoking status

 Never smoker

46.2%

94.4%

54.3%

19.5%

 Former or current smoker

53.8%

5.6%

45.7%

80.5%

Alcohol consumption

 Low or moderate

83.5%

60.5%

87.8%

97.3%

 High

16.5%

39.5%

12.2%

2.7%

Physical activity

 Healthy

35.7%

8.7%

28.8%

66.6%

 Not healthy

64.3%

91.3%

71.2%

33.4%

Healthy eating index

 Healthy

43.2%

12.4%

37.7%

75.5%

 Not healthy

56.8%

87.6%

62.3%

24.5%

Socioeconomic status

Income-to-poverty ratio

 ≤ 1

7.7%

8.5%

7.8%

6.9%

 > 1 and < 4

56.2%

61.6%

54.8%

53.2%

 ≥ 4

36.1%

29.9%

37.4%

39.9%

Education

 < High school

13.1%

16.2%

12.1%

11.7%

 High school or equivalent

21.7%

22.8%

23.6%

18.6%

 ≥ College

65.2%

61.0%

64.3%

69.7%

Insurance

 Uninsured

5.3%

4.1%

8.2%

2.7%

 Covered by government

30.2%

30.9%

28.0%

32.3%

 Covered by private

25.0%

22.9%

26.0%

25.5%

 Covered by both

39.5%

42.1%

37.8%

39.5%

Food security

 Full food security

89.4%

89.2%

89.4%

89.4%

 Having food insecurity

10.6%

10.8%

10.6%

10.6%

Occupation

 Blue collar

31.9%

38.6%

30.0%

28.5%

 White collar§

66.0%

59.6%

68.5%

68.4%

 Not in labor force

2.0%

1.7%

1.3%

3.1%

 Unemployed

0.1%

0.09%

0.2%

0.06%

SES components

 Low SES

15.8%

17.9%

15.8%

14.1%

 Medium SES

26.8%

32.2%

27.5%

21.6%

 High SES

57.4%

49.9%

56.7%

64.3%

  1. *Participants not married included those widowed, divorced, separated, or living with partners.
  2. Low alcohol consumption was defined as daily consumption of one drink or fewer for women and two drinkers or fewer for men, and otherwise coded as moderate or high consumption.
  3. Blue collar occupations included service, farming/forestry/fishing, precision production/craft/repair, and operator/fabricator/laborer occupations.
  4. §White collar occupations included managerial/professional specialty, and technical/sales/administrative support occupations.
  5. Not in labor force included retired persons, homemakers, and students.