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W. Liao



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    O11 - Symptom Management (ID 137)

    • Event: WCLC 2013
    • Type: Oral Abstract Session
    • Track: Supportive Care
    • Presentations: 1
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      O11.04 - Patterns of Quality of Life, Their Characteristics and Relationship to Symptoms -- 12 Months Follow-up in Newly Diagnosed Advanced Lung Cancer Patients (ID 3359)

      16:35 - 16:45  |  Author(s): W. Liao

      • Abstract
      • Presentation
      • Slides

      Background
      Patients with newly diagnosed advanced lung cancer may experience severe impacts on their quality of life (QOL). However, relatively few studies have examined the longitudinal patterns of QOL and their relationship to patients’ symptoms during the first 12 months of cancer diagnosis. Thus, the purposes of this study were to (1) examine the overall pattern and the potential sub-patterns (if any) of QOL in these patients during the first 12 months of cancer diagnosis; and (2) identify those important characteristics of each QOL sub-pattern and their relationship to patients’ symptoms.

      Methods
      This is a 12-month prospective longitudinal study. Newly diagnosed advanced lung cancer patients (Stage IIIB & IV) were eligible to be recruited and followed for 12 months on 5 time points (Pre-treatment, 1, 3, 6 and 12 months since treatments). The overall QOL was measured by the overall QOL item in the EORTC QLQ-C30 (0-100 scoring, higher is better). The QOL patterns and factors related to the patterns were analyzed by Latent Class Growth Analysis (LCGA). Potential factors (independent variables) used to predict the overall QOL change and each QOL sub-pattern (dependent variables) included: physical function, selected symptoms, emotion distress, self-efficacy (on coping with cancer) and important demographic and treatment related variables.

      Results
      A total of 200 subjects completed the 5 follow-up assessments. Generally, patients had moderate level of QOL across the 12 months. There were three QOL sub-patterns were identified. In the pattern I (around 50% of subjects), patients reported moderate to relatively good levels of QOL (scoring around 70-80) across the 12 months. In the pattern II (around 45% of subjects), patients reported moderate levels of QOL (scoring around 50-70 QOL). In the pattern III (<10% subjects), patients reported poor level of QOL (scoring around 40 or less). Overall, symptoms including fatigue, pain, lack of appetite and dyspnea were significantly related to the changes of QOL. Other factors also included psychological distress, uncertainty and self-efficacy (level of confidence) in coping well with lung cancer.

      Conclusion
      The results provide a relatively comprehensive picture about the overall QOL and the sub-patterns of QOL for those newly diagnosed advanced lung cancer patients. The results further support the giving timing and tailoring interventions are needed to better improve lung cancer patients’ QOL. (Acknowledgement: National Health Research Institute,NHRI,Taiwan).

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