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Gepubliceerd in: Quality of Life Research 9/2013

01-11-2013

Deriving clinically meaningful cut-scores for fatigue in a cohort of breast cancer survivors: a Health, Eating, Activity, and Lifestyle (HEAL) Study

Auteurs: Angela M. Stover, Bryce B. Reeve, Barbara F. Piper, Catherine M. Alfano, Ashley Wilder Smith, Sandra A. Mitchell, Leslie Bernstein, Kathy B. Baumgartner, Anne McTiernan, Rachel Ballard-Barbash

Gepubliceerd in: Quality of Life Research | Uitgave 9/2013

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Abstract

Purpose

To empirically determine clinically meaningful cut-scores on the 0–10 response scale of the revised Piper Fatigue Scale (PFS-R) and its shorter version (PFS-12). Breast cancer survivors were classified (i.e., none, mild, moderate, or severe fatigue) based on the cut-scores, and relationships between these cut-scores and decrements in health-related quality of life (HRQOL) were examined.

Methods

A total of 857 breast cancer survivors, stages in situ-IIIa, from the Health, Eating, Activity, and Lifestyle (HEAL) Study were eligible. Survivors completed the PFS-R, SF-36, and a sexual health scale approximately 3 years after diagnosis. Multivariate analysis of covariance was used to examine five fatigue severity cut-score models, controlling for demographics, clinical characteristics, comorbidity, and antidepressant use. Multivariate regression was used to examine HRQOL decrements by cut-score category.

Results

Analyses supported two similar fatigue severity cut-score models for the PFS-R and PFS-12: Model A.) none (0), mild (1–3), moderate (4–6), and severe (7–10); and Model D.) none (0), mild (1–2), moderate (3–5), and severe (6–10). For every threshold increase in fatigue severity, clinically meaningful decrements in physical, mental, and sexual health scores were observed, supporting construct validity of the fatigue cut-scores.

Conclusion

Standardized fatigue cut-scores may enhance interpretability and comparability across studies and populations and guide treating planning.
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Metagegevens
Titel
Deriving clinically meaningful cut-scores for fatigue in a cohort of breast cancer survivors: a Health, Eating, Activity, and Lifestyle (HEAL) Study
Auteurs
Angela M. Stover
Bryce B. Reeve
Barbara F. Piper
Catherine M. Alfano
Ashley Wilder Smith
Sandra A. Mitchell
Leslie Bernstein
Kathy B. Baumgartner
Anne McTiernan
Rachel Ballard-Barbash
Publicatiedatum
01-11-2013
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 9/2013
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-013-0360-6

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