Figure 1.

Depressive symptoms by patterns of smoking abstinence (n = 207). Session 1 represents one week before quit date. Weeks refer to the number of weeks since quit date. Abstinence is biochemically confirmed seven-day point-prevalence smoking abstinence. Errors bars shown are the standard errors of the means for that abstinence pattern at that assessment. Twenty-nine participants with patterns of smoking outcomes other than these four most common patterns are not depicted but are included in the multilevel model analyses. Note. CES-D = Center for Epidemiologic Studies Depression Scale.