A psychometric analysis of the Quality of Life-Cancer Survivors (QOL-CS) in survivors of childhood cancer

被引:34
作者
Zebrack, BJ
Chesler, MA
机构
[1] Univ Calif Los Angeles, Sch Med, Dept Pediat, Los Angeles, CA 90024 USA
[2] Univ Michigan, Ctr Res Social Org, Ann Arbor, MI 48109 USA
关键词
cancer survivors; childhood cancer; quality of life; questionnaire validation;
D O I
10.1023/A:1012228823115
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
Given the increasing interest in quality of life research in cancer survivorship, psychometric properties of the Quality of Life-Cancer Survivors (QOL-CS) were explored in a group of childhood cancer survivors. The QOL-CS is a 41-item visual analog scale composed of four multi-item sub-scales (physical well-being, psychological well-being, social well-being, spiritual well-being) and two sub-components (fears, distress). This instrument was incorporated in a mailed survey completed by 177 respondents. The underlying factor structure and internal reliability of the instrument were explored. A preliminary assessment of the external validity of the factor structure was undertaken. Results of a factor analysis were theoretically consistent with elements assessed in the QOL-CS, although misclassification of several items was noted and discussed. Internal-consistency reliability was very good (Cronbach's alpha = 0.80-0.89) for five of the six factors. Moderate (0.30 < r < 0.45) to high (r > 0.60) concurrent validity was observed for four factors. Discriminant validity was noted across groups defined by health and social status variables. Psychometric analysis indicated that the instrument measured distinct and relevant domains of quality of life for childhood cancer survivors, but in its current form does not appear to be an optimal measure of quality of life in this population.
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页码:319 / 329
页数:11
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[41]  
ZEBRACK BJ, 1999, THESIS U MICHIGAN AN