Table 3 Characteristics of patients that declined participation and enrolled in study

Age category (%)

 18 to 29 years

18

16

0.37

 30 to 39 years

19

18

 40 to 49 years

24

24

 50 to 59 years

24

29

 60 to 70 years

15

12

Female (%)

54

61

0.01

Hispanic (%)

12

10

0.17

Race (%)

 White

64

56

<0.001

 Black, African-American

23

34

 Other / more than one

12

7

Education (%)

 Less than high school graduate

21

22

0.84

 High school graduate or GED

37

35

 Some college

30

31

 College graduate

12

13

Self-reported health status (%)

 Excellent

6

6

0.83

 Very good

15

15

 Good

32

33

 Fair

31

30

 Poor

15

17

Chronic conditions (%)

 None

51

49

0.12

 One

28

25

 Two or more

20

26

Seeing regular doctor (%)

 First visit

28

23

0.26

 Known less than 1 year

14

19

 Known more than 1 year

58

59

Reason for visit (%)

 New illness or problem

31

27

0.38

 Continued care

44

48

 Well care, physical

25

25

No. cigarettes smoked / day, median (IQR)

10 (5–20)

10 (5–20)

0.99

Considering quitting within the (%)

 Next month

----

28

 Next six months

----

27

 Six months to one year

----

22

 Not within the next year

----

23

Importance of quitting, mean (SD)

----

7.9 (2.6)

Confidence in quitting, mean (SD)

----

6.5 (2.9)