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Measuring cancer care coordination: development and validation of a questionnaire for patients

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Author(s): Young Jane | Walsh Jennifer | Butow Phyllis | Solomon Michael | Shaw Joanne

Journal: BMC Cancer
ISSN 1471-2407

Volume: 11;
Issue: 1;
Start page: 298;
Date: 2011;
Original page

Keywords: cancer | coordination of cancer care | questionnaire | psychometrics

ABSTRACT
Abstract Background Improving the coordination of cancer care is a priority area for service improvement. However, quality improvement initiatives are hindered by the lack of accurate and reliable measures of this aspect of cancer care. This study was conducted to develop a questionnaire to measures patients' experience of cancer care coordination and to assess the psychometric properties of this instrument. Methods Questionnaire items were developed on the basis of literature review and qualitative research involving focus groups and interviews with cancer patients, carers and clinicians. The draft instrument was completed 686 patients who had been recently treated for a newly diagnosed cancer, including patients from metropolitan, regional and rural areas of New South Wales, Australia. To assess test-retest reliability, 119 patients completed the questionnaire twice. Unreliable items those with limited variability or high levels of missing data were eliminated. Exploratory factor analysis was conducted to define the underlying factor structure of the remaining items and subscales were constructed. Correlations between these and global measures of the experience of care coordination and the quality of care were assessed. Results Of 40 items included in the draft questionnaire, 20 were eliminated due to poor test-retest reliability (n = 4), limited response distributions (n = 8), failure to load onto a factor (n = 7) or detrimental effect on the internal consistency of the scale (n = 1). The remaining 20 items loaded onto two factors named 'Communication' and 'Navigation', which explained 91% of the common variance. Internal consistency was with high for the instrument (Cronbach's alpha 0.88) and each subscale (Cronbach's alpha 0.87 and 0.73 respectively). There was no apparent 'floor' or 'ceiling' effect for the total score or the Communication subscale, but evidence of a ceiling effect for the Navigation subscale with 21% of respondents achieving the highest possible score. There were moderate positive associations between the total score and global measures of care coordination (r = 0.57) and quality of care (r = 0.53). Conclusions The instrument developed in this study demonstrated consistency and robust psychometric properties. It may provide a useful tool to measure patients' experience of cancer care coordination in future surveys and intervention studies.
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