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13
DECREASING SYMPTOM LIMITATIONS: EFFECTS OF A COGNITIVE BEHAVIORAL INTERVENTION.
Ardith Doorenbos, PhD, RN, Barbara Given, PhD, RN, FAAN, and Charles Given,
PhD, Michigan State University, East Lansing, MI; Ruth McCorkle, PhD,
RN, FAAN, Yale University, New Haven, CT; and Bernadine Cimprich, PhD,
RN, FAAN, University of Michigan, Ann Arbor, MI.
Symptom limitations have a significant negative influence on quality of
life among patients with cancer. It is important for oncology nurses to
gain an understanding of interventions that ameliorate the impact of symptom
limitations.
This study seeks to determine if a cognitive behavioral intervention decreases
the impact of symptom limitations among newly diagnosed cancer patients
who are receiving chemotherapy.
The intervention was based on cognitive behavioral theory and focused
on four problem-solving intervention strategies: Self-care management,
providing information and decision-making, counseling and support, and
communication with providers.
This randomized control trial of ten contacts over 20 weeks among 237
(118 experimental and 119 control group) patients with solid tumor cancers
used an iterative, cognitive behavioral intervention by the nurse and
patient working collaboratively to identify needs and adapting the intervention
to the patients’ needs based on 15 common cancer symptoms in the
experimental group. The control group continued to receive conventional
care. Interviews occurred at baseline, 10 weeks, 20 weeks, and 32 weeks.
A two-level hierarchical linear modeling (HLM) was used. Level 1 is the
equation for the trajectory of each individual, representing change over
time within person or the repeated measures (i.e., the four interviews
of a patient with cancer). Level 2 explains that trajectory via person-specific
characteristics.
Findings include higher scores of symptom limitation in the control group
compared to patients receiving the intervention at 10 weeks (p = .001),
20 weeks (p = .004), and 32 weeks (p = .055). At the onset of the study,
younger patients reported more symptom limitations than their older counterparts,
however, this trend was reversed by the end of the study. The results
corroborate previous studies that report positive effects of cognitive
behavioral interventions among patients with cancer. Findings also suggest
that cognitive behavioral interventions focused on symptoms may help younger
patients with cancer decrease symptom limitations, which may help to improve
their quality of life.
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