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. 2022 Dec 14;31(1):12.
doi: 10.1007/s00520-022-07455-y.

Comparison of two validated instruments to measure financial hardship in cancer survivors: comprehensive score for financial toxicity (COST) versus personal financial wellness (PFW) scale

Kevin A D'Rummo  1 , David Nganga  2 , Lynn Chollet-Hinton  3 , Xinglei Shen  4
Affiliations

Comparison of two validated instruments to measure financial hardship in cancer survivors: comprehensive score for financial toxicity (COST) versus personal financial wellness (PFW) scale

Kevin A D'Rummo et al. Support Care Cancer. .

Abstract

Purpose: Financial distress and financial toxicity are recognized challenges in cancer survivorship. Financial toxicity includes both objective measures of hardship and subjective distress. We hypothesized that subjective financial distress is correlated to overall holistic financial toxicity. We compared two widely accepted instruments to measure financial distress and financial toxicity.

Methods: Patients in the follow-up phase of care at a single institution were surveyed regarding demographic and economic status. Financial toxicity was measured using the comprehensive score for financial toxicity-functional assessment of chronic illness (COST-FACIT) and financial distress using the personal financial wellness (PFW) scale. Surveys were analyzed for correlation and internal consistency. Patient score distributions were compared. Associations between survey scores and patient factors were assessed using multivariable linear regression models.

Results: A total of 116 patients were included. Scores from the COST-FACIT showed a strong correlation with PFW scores (r = 0.90, p < 0.0001). Scale reliability was high for both the COST-FACIT (α = 0.92) and PFW (α = 0.97) surveys. Score distributions exhibited left skew for both surveys, with 9.5% of patient scores falling in the worst quartile of possible scores on each respective survey. The strongest predictors of financial distress and financial toxicity included young age, lower monetary savings, lower household income, and less perceived social support during cancer treatment.

Conclusions: The COST-FACIT measure of financial toxicity correlated strongly with PFW measure of financial distress. Although these instruments were designed to assess different concepts (financial distress vs financial toxicity), they gave strikingly similar results. Either instrument may be used as a meaningful patient-reported outcome for study of financial distress in cancer survivors. However, the COST-FACIT construct of financial toxicity does not appear to add additional information beyond financial distress.

Keywords: Cancer survivors; Cost of illness; Financial toxicity; Patient-reported outcome measures; Radiation oncology.

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