. Author manuscript; available in PMC: 2013 Sep 1.

Published in final edited form as: Am J Health Behav. 2012 Sep;36(5):577–588. doi: 10.5993/AJHB.36.5.1

Table 3.

Differences in Use of Cessation Services and Follow-up Rates by Recruitment Method

	Online HRA	Off-line Promotions	Online Advertisements	Quit-Line Screening	P
N	397	1341	1426	189
Use of Study Cessation Services
Cessation Web Site (used expert counseling system)^*	13%^a	30%^b	27%^bc	38%^c	0.0019¹
Telephone Quit Line (accepted first counseling call)^*	10%^a	22%^b	22%^c	82%^d	<0.001^5,6
Self-help Booklet (downloaded and read or looked into booklet)^*	17%^a	23%^b	24%^bc	34%^c	0.037^2,4
Use of any cessation service^**	13%^a	25%^b	24%^b	49%^c	<0.001⁴
Follow-up Rates
Completed 12-week posttest^**	55%^a	43%^a	41%^b	49%^ab	0.030^4,5,7
Completed 26-week posttest^**	45%^a	34%^a	31%^b	40%^a	0.015^4,5,7

Note. Statistically significant contrasts (P<.05) between groups indicated by different letters.

Comparison adjusted for demographics – age (1), gender (2), race/ethnicity (3), education (4), enrolled in college (5), employed (6), and Internet use (7).

^**

Comparison adjusted for demographics – for age (1), gender (2), race/ethnicity (3), education (4), enrolled in college (5), employed (6), and Internet use (7) – and experimental group assignment (Web site, quit line, or booklet).