Skip to main content
. 2010 Nov 24;13(2):146–150. doi: 10.1093/ntr/ntq213

Table 1.

Results of Multilevel Model Predicting CES-D Scores Prior to and After Quit Date (N = 235)

Fixed effects B (SE)
Mean level (intercept)
    Intercept 5.71 (1.27)***
    ST-BI (vs. ST) 0.49 (0.83)
    MDD history (vs. none) 2.09 (0.89)*
    Male gender (vs. female) −1.03 (0.85)
    Baseline FTND score 0.56 (0.19)**
Rate of change (slope)
    Intercept 0.062 (0.02)**
Time-varying abstinence
    Intercept −2.74 (0.51)***
Variance components
    Level 1
        Within-person residuals 33.86 (2.10)***
    Level 2
        In mean level 37.55 (5.56)***
    Level 2
        In rate of change 0.029 (0.011)**
    Level 2
        In time-varying abstinence 4.77 (5.03)

Note. Analyses were conducted with full maximum likelihood estimation using PROC MIXED in SAS. Time-varying abstinence refers to seven-day point-prevalence smoking abstinence versus nonabstinence at the assessment concurrent with the assessment of depressive symptoms (CES-D). Analyses included all participants with any data on the CES-D; one participant was not included due to missing data on MDD history. CES-D = Center for Epidemiologic Studies Depression Scale; FTND = Fagerström Test for Nicotine Dependence; MDD = major depressive disorder; ST = standard treatment; ST-BI = standard treatment plus brief alcohol intervention.

*p < .05, **p < .01, ***p < .0001.