Development and validation of the Cancer Dyspnoea Scale: a multidimensional, brief, self-rating scale

Citation
K. Tanaka et al., Development and validation of the Cancer Dyspnoea Scale: a multidimensional, brief, self-rating scale, BR J CANC, 82(4), 2000, pp. 800-805
Citations number
35
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Oncology,"Onconogenesis & Cancer Research
Journal title
BRITISH JOURNAL OF CANCER
ISSN journal
0007-0920 → ACNP
Volume
82
Issue
4
Year of publication
2000
Pages
800 - 805
Database
ISI
SICI code
0007-0920(200002)82:4<800:DAVOTC>2.0.ZU;2-V
Abstract
Dyspnoea is one of the most frequent and refractory symptoms in cancer pati ents. Lack of an appropriate assessment tool for dyspnoea seems to disturb establishment of management strategy. The purpose of this study was to deve lop and validate a brief self-rating scale to assess the multidimensional n ature of dyspnoea in cancer patients. We developed a 12-item scale, the Can cer Dyspnoea Scale (CDS), composed of three factors (sense of effort/sense of anxiety/sense of discomfort), by using factor analysis, One hundred and sixty-six patients with advanced or recurrent lung cancer participated in t he validation phase. The CDS showed good feasibility (average time required to complete it was 140 s). Construct validity, confirmed by repeating fact or analysis, was good. Convergent validity, confirmed by a relation to Visu al Analogue Scale of dyspnoea and modified Borg's scale, was also good (ave rage: r = 0.57 and 0.52, respectively, and both P < 0.001). The CDS had goo d internal consistency (average Cronbach's alpha = 0.86) and stability (ave rage test-retest reliability r = 0.66, P < 0.005). The present study demons trated that the CDS is a brief, valid and feasible scale for assessing the multidimensional nature of dyspnoea in cancer patients. (C) 2000 Cancer Res earch Campaign.