Cognitive-existential group psychotherapy for women with primary breast cancer: a randomised controlled trial |
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Authors: | Kissane David W Bloch Sidney Smith Graeme C Miach Patricia Clarke David M Ikin Jillian Love Anthony Ranieri Nadia McKenzie Dean |
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Affiliation: | Department of Psychiatry, University of Melbourne, St. Vincent's Hospital, Melbourne, Victoria, Australia. dkissane@unimelb.edu.au |
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Abstract: | BACKGROUND: We conducted a randomised, controlled trial of cognitive-existential group therapy (CEGT) for women with early stage breast cancer receiving adjuvant chemotherapy with the aim of improving mood and mental attitude to cancer. METHODS: Women were randomised to 20 sessions of weekly group therapy plus 3 relaxation classes or to a control arm receiving 3 relaxation classes. Assessments, independently done at baseline, 6 and 12 months, included a structured psychiatric interview and validated questionnaires covering mood, attitudes to cancer, family relationships, and satisfaction with therapy. RESULTS: Three hundred and three of 491 (62%) eligible patients participated over 3 years. Distress was high pre-intervention: 10% were diagnosed as suffering from major depression, 27% from minor depression and 9% from anxiety disorders. On an intention-to-treat analysis, there was a trend for those receiving group therapy (n=154) to have reduced anxiety (p=0.05, 2-sided) compared to controls (n=149). Women in group therapy also showed a trend towards improved family functioning compared to controls (p=0.07, 2-sided). The women in the groups reported greater satisfaction with their therapy (p<0.001, 2-sided), appreciating the support and citing better coping, self-growth and increased knowledge about cancer and its treatment. They valued the CEGT therapy. Overall effect size for the group intervention was small (d=0.25), with cancer recurrence having a deleterious effect in three of the 19 therapy groups. Psychologists as a discipline achieved a moderate mean effect size (d=0.52). CONCLUSION: CEGT is a useful adjuvant psychological therapy for women with early stage breast cancer. Interaction effects between group members and therapists are relevant to outcome. Group-as-a-whole effects are powerful, but the training and experience of the therapist is especially critical to an efficacious outcome. |
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