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. 2015 Jun 5;6:112. doi: 10.3389/fneur.2015.00112

Table 1.

Characteristics of the total sample.

Variable Category Values
Insufficient sleep (days/week) Mean (SD) 2.00 (2.33)
Age 18–24 (%) 9.76
25–29 (%) 8.07
30–34 (%) 11.21
35–39 (%) 9.48
40–44 (%) 11.26
45–49 (%) 9.59
50–54 (%) 10.64
55–59 (%) 7.92
60–64 (%) 7.07
65–69 (%) 4.80
70–74 (%) 3.65
75–79 (%) 3.17
80+ (%) 3.36
Sex Female (%) 50.57
Male (%) 49.43
Race/ethnicity White (%) 69.34
Black/African-American (%) 9.72
Hispanic/Latino (%) 14.34
Asian/other (%) 5.06
Multiracial (%) 1.54
Household size Mean (SD) 3.18 (1.60)
Education Less than high school (%) 9.23
High school (%) 26.48
Some college (%) 27.13
College graduate (%) 37.16
Income <$10,000 (%) 4.84
$10,000–$15,000 (%) 4.89
$15,000–$20,000 (%) 6.81
$20,000–$25,000 (%) 8.43
$25,000–$35,000 (%) 10.38
$35,000–$50,000 (%) 14.41
$50,000–$75,000 (%) 16.59
$75,000+ (%) 33.66
Marital status Married (%) 62.90
Divorced (%) 8.76
Widowed (%) 5.23
Separated (%) 1.96
Never married (%) 17.35
Part of an unmarried couple (%) 3.80
Census region West (%) 23.40
Midwest (%) 22.59
South (%) 35.57
Northeast (%) 17.23
Other (%) 1.21
Employment status Employed (%) 60.72
Retired (%) 14.48
Homemaker (%) 7.35
Student (%) 4.36
Unemployed (%) 8.20
Unable to work (%) 4.90
Health insurance Yes (%) 85.64
No (%) 14.36
Fruits and vegetables <1/day (%) 4.60
1–3/day (%) 35.77
3–5/day (%) 35.67
5+/day (%) 23.97
Moderate exercise (h/day) Mean (SD) 0.13 (0.17)
Vigorous exercise (h/day) Mean (SD) 0.08 (0.13)
Any exercise No (%) 23.12
Yes (%) 76.88
Physical activity at work Mostly sitting/standing (%) 39.84
Mostly walking (%) 12.98
Mostly heavy labor (%) 7.68
Not employed (%) 39.50
Number of drinks Mean (SD) 12.10 (36.40)
Heavy drinking No (%) 94.61
Yes (%) 5.39
Smoking Never (%) 57.03
Former (%) 25.14
Some days (%) 5.23
Every day (%) 12.61
Emotional support Always (%) 48.07
Usually (%) 31.06
Sometimes (%) 12.97
Rarely (%) 3.98
Never (%) 3.91
BMI category Underweight (%) 1.48
Normal (%) 33.67
Overweight (%) 36.66
Obese (%) 28.19
Days poor physical health Mean (SD) 3.52 (7.75)
Days poor mental health Mean (SD) 3.48 (7.58)
Overall health Excellent (%) 21.53
Very good (%) 34.25
Good (%) 29.31
Poor (%) 11.01
Very poor (%) 3.89