Table 2.

Program engagement^a of each intervention component by participant characteristics (n = 1866)

			Exposure Schedule
			Single Exposure		Weekly Exposure
Participant characteristic	# sections opened	F (P value)	# sections opened	F (P value)	# sections opened	F (P value)
HMO
1	2.9	14.0 (P < .001)	3.2	6.5 (P = .01)	2.6	9.9 (P = .002)
2	2.2		2.9		2.2
Age
<40 yrs	2.5	11.4 (P < .001)	2.9	2.1 (P = .13)	2.0	14.4 (P < .001)
40-49 yrs	2.6		2.9		2.3
>50 yrs	3.0		3.2		2.8
Gender
Female	2.8	5.9 (P = .02)	3.1	1.6 (P = .21)	2.5	7.2 (P = .008)
Male	2.6		3.0		2.2
Race
African-American	2.6	0.9 (P = .42)	2.9	0.3 (P = .71)	2.2	0.4 (P = .69)
White	1.7		3.1		2.4
Other	1.8		3.1		2.5
Education
≤ High school	2.6	9.8 (P = .002)	2.9	2.5 (P = .11)	2.2	6.7 (P = .01)
> High school	2.9		3.2		2.5
# cigarettes/day
<20	2.8	0.6 (P = .56)	3.0	1.0 (P = .36)	2.5	2.1 (P = .12)
20	2.6		2.9		2.4
>20	2.7		3.2		2.2
Motivationb
Low	2.8	2.3 (P = .13)	3.1	0.8 (P = .36)	2.5	2.9 (P = .09)
High	2.6		3.0		2.3
Self-efficacyb
Low	2.7	0.6 (P = .44)	3.2	2.3 (P = .13)	2.3	1.1 (P = .30)
High	2.7		2.9		2.4

^aNumber of sections opened adjusted for baseline characteristics in the Table.

^bMotivation and Self-efficacy measures were split at their means.