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Published in: Supportive Care in Cancer 6/2013

Open Access 01-06-2013 | Original Article

Development and preliminary validation of the pancreatic cancer disease impact score

Authors: Turid Heiberg, Tom Nordby, Tore K Kvien, Trond Buanes

Published in: Supportive Care in Cancer | Issue 6/2013

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Abstract

Objective

Patient-reported outcomes are important for clinical practice and research, and should reflect what patients perceive as important. The objective of this study was to develop and preliminarily validate a brief, patient-derived, disease-specific tool, the pancreatic cancer disease impact (PACADI) score.

Methods

The development was performed in two phases. Forty-one patients with confirmed pancreatic cancer (PC) selected dimensions of health related to the impact of the disease. A weighting of the eight most frequently reported dimensions was performed in a second sample of 80 PC patients who also rated the impact on eight numeric rating scales (NRS, range 0 to 10). The relative weights and the scores from the NRS were used to compute the PACADI score (range 0 to 10). The patients also completed Edmonton Symptom Assessment System (ESAS) and EQ-5D.

Results

Dimensions reported by more than 20 % of the patients were included in the PACADI score (relative weights in parenthesis): pain/discomfort (0.16), fatigue (0.16), anxiety (0.15), bowel/digestive problems (0.14), loss of appetite (0.13), dry mouth (0.11), itchiness (0.08), and nausea (0.07). The PACADI score in the 80 PC patients had a mean (SD) value of 3.26 (2.06) (95 % CI 2.80, 3.71), was moderately to strongly correlated to ESAS sense of well-being (r = 0.69) and EQ-5D (r = −0.52), and discriminated significantly between patients with and without PC.

Conclusion

The PACADI score is a new eight-item, patient-derived, disease-specific measure. Preliminary validation regarding construct validity and discrimination encourages further validation in independent patient samples.
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Metadata
Title
Development and preliminary validation of the pancreatic cancer disease impact score
Authors
Turid Heiberg
Tom Nordby
Tore K Kvien
Trond Buanes
Publication date
01-06-2013
Publisher
Springer-Verlag
Published in
Supportive Care in Cancer / Issue 6/2013
Print ISSN: 0941-4355
Electronic ISSN: 1433-7339
DOI
https://doi.org/10.1007/s00520-012-1713-3

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