Table 1 Overall Pre-Matching versus Post-matching Sample Description

Characteristics

Age

<0.0001

0.5364

 50–64

38.29

58.26

39.35

38.78

 65 and older

61.71

41.74

60.65

61.22

Gender

<0.0001

0.8196

 Female

37

55.63

38.01

37.82

 Male

63

44.37

61.99

62.18

Race/ethnicity

0.0007

0.1054

 White

76.94

74.46

77.48

76.02

 Non-White

23.06

25.54

22.52

23.98

BMI

<0.0001

0.6934

 Normal weight/underweight

24.77

30.61

25.01

24.62

 Overweight

37.84

38.59

38.4

38.05

 Obese

37.4

30.8

36.6

37.34

Smoking Status

<0.0001

0.6299

 Current Smoker

19.26

13.51

17.51

18.11

 Former Smoker

46.47

33.79

46.25

46.27

 Never Smoker

34.27

52.7

36.24

35.62

Marital Status

<0.0001

<0.001

 Married

53.61

62.37

54.64

60.21

 Widowed

20.81

13.98

20.7

16.57

 Sep/Divorced

20.52

16.52

19.73

16.72

 Never Married

5.06

7.13

4.93

6.5

Education

<0.0001

<0.0001

  < HS

23.55

13.37

22.17

16.3

 HS Grad

32.5

28.87

32.63

30.72

 Some College/TS

29.05

30.73

29.55

30.48

 College/TS Grad

14.9

27.03

15.65

22.5

Employment Status

<0.0001

<0.0001

 Employed

18.76

43.41

20.6

29.05

 Unemployed

81.24

56.69

79.4

70.95

Family Income

<0.0001

<0.0001

  < $25,000

34

21.9

34.72

26.45

 $25,000 - $35,000

10.55

9.18

10.88

10.52

 $35,000 - $50,000

13.13

12.04

13.7

12.91

 $50,000 - $75,000

10.42

13.34

11.37

13.95

  > $75,000

12.87

27.26

14.14

21.74

 Missing/Don’t Know

17.02

16.29

15.18

14.42

Insurance Status

<0.0001

0.342

 Yes Insurance

95.2

94.22

95.07

95.56

 No Insurance

4.8

5.78

4.93

4.44

Usual Source of Care

<0.0001

0.1174

 Yes

94.75

90.78

94.79

94.02

 No

5.23

9.22

5.21

5.98

Region of the U.S.

<0.0001

0.0152

 Northeast

18.44

18.96

18.25

17.79

 Midwest

22.93

22.62

23.23

23.1

 South

41.05

36.49

40.61

38.91

 West

17.58

21.94

17.91

20.21

Metro Status

<0.0001

<0.0001

 Metro

76.44

81.73

76.37

79.96

 Non-metro

23.56

18.27

23.63

20.04