Table 1 Baseline sample characteristics in FHS and HCHS/SOL

No. of participants

4066

6891

Baseline year, median (IQR)

2010 (2009, 2011)

2010 (2009, 2010)

Demographic characteristics

 Age in years, mean (SD)

53.9 (13.6)

45.6 (13.0)

 Age group, %

  18–34

6.6

21.0

  35–44

20.3

19.5

  45–54

28.4

33.7

  55–64

20.4

20.0

  65–74

16.5

5.9

  75 + 

7.8

0

 Sex, % male

43.7

36.6

 Race and ethnicity, %

  Non-Hispanic White

90.7

0

  Hispanic

3.8

100

  Black/African-American

2.0

0

  Mixed/other

3.5

0

 Employment Status, %

 Retired and not employed

16.2

6.8

 Unemployed (nonemployed, nonretired)

10.6

36.2

 Part-time

16.0

18.9

 Full-time

57.2

38.1

 Marital status, %

  Married or living with a partner

73.0

55.9

  Divorced or separated

11.8

24.9

  Single, never married or widowed

15.2

19.3

 Annual family income, %

  < $20,000

11.4

40.9

  $20,000–50,000

23.1

40.8

  > $50,000

52.4

10.8

  Not reported

13.1

7.4

 Education, %

  Less than High School

1.2

34.7

  High School or GED

15.1

26.0

  Greater than high school

83.7

39.3

Clinical and healthcare

 Self reported general health, %

  Excellent

25.4

8.9

  Very good

49.2

17.4

  Good

23.0

49.6

  Fair

2.2

21.1

  Poor

0.2

3.0

  Overweight, %

36.3

40.9

  Obese, %

26.6

37.2

 Lipid lowering medication, %

21.8

6.7

 Hypertension, %

24.8

10.1

 Aspirin use, %

24.1

17.7

 Health insurance, %

99.2

48.2

 Healthcare use, %

94.3

70.7

Health behavior

 Current smoking, %

7.4

17.2

 Current alcohol use, % yes

82.0

49.4

 Alternate Healthy Eating Index-2010, median (IQR)

63.0 (53.7, 72.1)

49.0 (43.8, 54.6)

 MPVA in minutes/day, median (IQR)

13.8 (5.5, 26.6)

15.7 (6.5, 31.0)

 Light activity in minutes/day, median (IQR)

191.0 (147.1, 242.1)

221.7 (169.6, 289.4)

 Total physical activity in minutes/day, median (IQR)

209.8 (163.3, 264.6)

243.0 (184.7, 316.5)

 Average counts per minute, median (IQR)

136.9 (94.2, 196.4)

146.7 (101.6, 212.6)

 Sedentary minutes/day, median (IQR)

731.3 (684.6, 773.0)

713.8 (645.4,771.3)