Table 3.

Rates of Attempts to Quit Smoking for at Least 24 Hours within the First 6 and 12 Months

	Usual Care	Provider Counseling	Provider Counseling+ Pharmacotherapy	Telephone Quitline
Full sample (N=7,354)
6 months	47.8	47.9	53.7†	55.0†
	(45.8–49.9)	(44.5–51.3)	(51.8–55.7)	(52.7–57.4)
12 months	64.2	63.4	69.1†	69.2†
	(62.2–66.2)	(60.2–66.7)	(67.4–70.9)	(67.0–71.4)
Respondents only (N=5,619)
12 months	78.4	78.5	83.7†	86.9†
	(76.5–80.4)	(75.2–81.7)	(82.1–85.3)	(85.0–88.7)

Based on self-reports of attempts to quit smoking for at least 24 hours at the 6- and 12-month surveys. The full sample (N=7,354) assumes that survey nonrespondents did not attempt to quit smoking over the relevant period. Respondents (N=5,619) refer to participants responding to either the 6- or 12-month survey.

^†Statistically different from Usual Care at the 5% level of significance.