Journal
ANNALS OF ONCOLOGY
Volume 25, Issue 2, Pages 346-351Publisher
OXFORD UNIV PRESS
DOI: 10.1093/annonc/mdt476
Keywords
alopecia distress scale; breast cancer; chemotherapy-induced alopecia; validation
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Funding
- AMOREPACIFIC
- Korea Breast Cancer Foundation [PHO1115515]
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This study developed and validated the Chemotherapy-induced Alopecia Distress Scale (CADS) that evaluate psychosocial distress that women with breast cancer experience because of the hair loss during chemotherapy. The CADS consists of 17 items in four domains (physical, emotional, activity, and relationship) and it reports good reliability and validity to measure alopecia distress in women with breast cancer.A psychometric scale for assessing the distress that breast cancer patients experience due to the chemotherapy-induced alopecia was developed and validated. Twenty-five items for chemotherapy-induced alopecia distress were developed based on a qualitative study, and a cross-sectional survey was conducted with 305 Korean women with breast cancer. To extract factor structure and evaluate construct validity, exploratory and confirmatory factor analysis (CFA) was carried out. Concurrent and discriminant validity were tested by correlations with the psychosocial factors. In addition, external validity analysis was conducted using data from another prospective study of 428 breast cancer patients. Exploratory factor analysis and CFA yielded 17 items in four domains and the model fit was good (CFI = 0.925). Coefficient alphas ranged from 0.77 to 0.95 for subdomains and 0.95 for total, and it was similar with the validation dataset confirming its external validity. The total Chemotherapy-Induced Alopecia Distress Scale (CADS) was moderately correlated with the body image (r = -0.47, P < 0.001), more weakly correlated with the patients' overall quality of life (QOL, r = -0.28, P < 0.001), but did not correlate with self-esteem (r = -0.07, P = 0.23). Our study confirmed that the CADS is a reliable and valid tool for measuring distress of chemotherapy-induced alopecia.
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