FIGURE 3. Change in Thought Intrusions, Clinician-Rated Anxiety, and Negative Affect Among Patients Undergoing Postsurgical Breast Cancer Treatment Randomly Assigned to a Stress Management Intervention or a Control Condition^a.

^a For thought intrusions, time 3 was estimated as 7.02 months (to yield the best linear relation) rather than 12 months. Means incorporate all observed data and all data estimated using full information maximum likelihood procedures for missing assessments.

^b Group effect on slope: z=3.64, p<0.001; Cohen’s d=1.22. Groups differ at time 2 (z=2.38, p<0.03; Cohen’s d=0.43) and time 3 (z=2.86, p<0.005; Cohen’s d=0.29).

^c Group effect on slope: z=2.71, p<0.003; Cohen’s d=0.74. No significant between-group differences at any time.

^d Group effect on slope: z=2.48, p<0.02; Cohen’s d=0.33. Groups differ at time 3 (z=2.63, p<0.01; Cohen’s d=0.43).