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Baseline Depressive Symptoms, Completion of Study Assessments, and Behavior Change in a Long-Term Dietary Intervention Among Breast Cancer Survivors.

  • Author(s): Wang, Julie B
  • Pierce, John P
  • Ayala, Guadalupe X
  • Cadmus-Bertram, Lisa A
  • Flatt, Shirley W
  • Madanat, Hala
  • Newman, Vicky A
  • Nichols, Jeanne F
  • Natarajan, Loki
  • et al.
Abstract

Background

Depressive symptoms can lower adherence and change in dietary studies. Behavioral activation may reduce these effects.

Purpose

This study aims to assess relationships among depressive symptoms on adherence and dietary change in the Women's Healthy Eating and Living (WHEL) Study

Methods

Secondary analyses from the WHEL Study, which achieved major dietary change in breast cancer survivors (N = 2817), were conducted. Logistic regressions were undertaken of baseline depressive symptoms (six-item Center for Epidemiologic Studies Depression Scale (CES-D)) with (1) completion of 1- and 4-year study assessments and (2) validated change in dietary behavior in the intervention group.

Results

In the comparison group (vs. intervention), depressive symptoms lowered completion of dietary recalls and clinic visits [4 years: odds ratio (OR) = 2.0; 95 % confidence interval (CI) = 1.4-3.0]. The behaviorally oriented intervention achieved major change in those furthest from study targets, although changes were lower in those with depressive symptoms: fruit/vegetable (+37.2 %), fiber (+49.0 %), and fat (-22.4 %).

Conclusions

Behavioral activation in dietary change interventions can overcome the impact of depressive symptoms.

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