Qiu, J., Chen, W., Gao, X., Xu, Y., Tong, H., Yang, M., . . . Yang, M. (2013). A randomized controlled trial of group cognitive behavioral therapy for Chinese breast cancer patients with major depression. Journal of Psychosomatic Obstetrics and Gynaecology, 34(2), 60–67. 

DOI Link

Study Purpose

Evaluate the effects of group cognitive behavioral therapy (CBT) among women with breast cancer and major depression

Intervention Characteristics/Basic Study Process

The intervention was a protocol-driven group intervention, delivered in group meetings weekly for 10 weeks. The content included cognitive restructuring dealing with existential concerns, behavioral activation, focusing on the importance of behavior in improving depressive symptoms, coping with side effects of treatment and pursuing healthy behaviors, and interpersonal communication examining the impact of relationships on mood. The intervention group also received progressive muscle relaxation training. Patients were randomized to the CBT or usual care wait list control group. The control group received an educational booklet. Sessions were audio taped and reviewed by supervisors to ensure treatment fidelity. All interventions were done by the same person. Patients were assessed at baseline, at the end of treatment, and at six months after the intervention.

Sample Characteristics

  • N = 54
  • MEAN AGE = 50.63 years
  • FEMALES: 100%
  • KEY DISEASE CHARACTERISTICS: All had breast cancer—most were stage 0–1. More than 94% had received chemotherapy. More than two-thirds had a psychiatric history and family history of mental illness. All were diagnosed with major depressive disorder. All had completed initial cancer treatment.
  • OTHER KEY SAMPLE CHARACTERISTICS: 22.6% had completed at least some college education. About half were currently employed, and approximately 90% were married.

Setting

  • SITE: Single site    
  • SETTING TYPE: Outpatient    
  • LOCATION: China

Phase of Care and Clinical Applications

PHASE OF CARE: Transition phase after active treatment

Study Design

Single-blind randomized controlled trial

Measurement Instruments/Methods

  • Hamilton Rating Scale for Depression (HRSD)
  • Self-Rating Anxiety Scale (SAS)
  • Functional Assessment of Cancer Therapy-Breast Self Esteem Scale (SES)

Results

At the end of treatment, a significant improvement was seen in HRSD results in the intervention group compared to controls (p = .00), with a between-groups effect size (ES) of 2.19. At six months, the difference between groups remained significant (p = .00) with an ES of 1.51. HRSD scores declined in all subjects over time. SAS scores declined in all subjects over time. At the end of treatment and at six months, scores were significantly lower in the intervention group (p < .05) with between-groups ES of 0.5 and 0.66, respectively. SES scores were higher in the intervention group but only were significantly different between groups at six months.

Conclusions

Group CBT reduced symptoms of depression and anxiety and increased self-esteem in patients with breast cancer who had major depressive disorder. These effects were maintained to some extent over a six-month period. The greatest effect was seen in reducing depressive symptoms

Limitations

  • Small sample (< 100)
  • Risk of bias (no appropriate attentional control condition)  
  • Risk of bias (sample characteristics)
  • Unintended interventions or applicable interventions not described that would influence results
  • Findings not generalizable
  • Though they state intent to treat analysis using the last measure carried forward, the sample size used for six months was less than the number who completed the intervention phase of the study. No attentional control condition existed. The sample was limited to Chinese women with mostly early-stage breast cancer who had completed treatment and had a depression diagnosis. No information is provided regarding whether any patients were receiving antidepressants or other relevant medications. Interventions all were provided by a single experienced individual, so findings may not be similar in other situations.

Nursing Implications

Findings demonstrate that group CBT was effective in reducing symptoms of anxiety and depression among patients with major depressive disorder. Patients with clinically significant depression need to be identified and treated for depression. CBT is one option for management of major depression among patients with cancer.