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. 2022 Sep;31(9):2717-2727.
doi: 10.1007/s11136-022-03139-6. Epub 2022 Apr 27.

Identifying health-related quality of life cut-off scores that indicate the need for supportive care in young adults with cancer

Emma Lidington  1 , Johannes M Giesinger  2 , Silvie H M Janssen  3   4 , Suzanne Tang  5 , Sam Beardsworth  6 , Anne-Sophie Darlington  7 , Naureen Starling  1   8 , Zoltan Szucs  9 , Michael Gonzalez  10 , Anand Sharma  11 , Bhawna Sirohi  12   13 , Winette T A van der Graaf  1   3 , Olga Husson  14   15
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Identifying health-related quality of life cut-off scores that indicate the need for supportive care in young adults with cancer

Emma Lidington et al. Qual Life Res. 2022 Sep.

Abstract

Purpose: Using patient-reported outcomes in routine cancer care may improve health outcomes. However, a lack of information about which scores are problematic in specific populations can impede use. To facilitate interpretation of the European Organisation for Research and Treatment of Cancer Core Questionnaire (EORTC QLQ-C30), we identified cut-off scores that indicate need for support by comparing each scale to relevant items from the Supportive Care Needs Survey (SCNS-LF59) in a young adult (YA) population.

Methods: We conducted a cross-sectional survey amongst YAs with cancer ages 25-39 at diagnosis. Participants completed the EORTC QLQ-C30 and SCNS-LF59. Patient, clinician and research experts matched supportive care needs from the SCNS-LF59 to quality of life domains of the EORTC QLQ-C30. We evaluated the EORTC QLQ-C30 domain score's ability to detect patients with need using receiver operator characteristic (ROC) analysis, calculating the area under the ROC curve and sensitivity and specificity for selected cut-offs. Cut-offs were chosen by maximising Youden's J statistic and ensuring sensitivity passed 0.70. Sensitivity analyses were conducted to examine the variability of the cut-off scores by treatment status.

Results: Three hundred and forty-seven YAs took part in the survey. Six experts matched SCNS-LF59 items to ten EORTC QLQ-C30 domains. The AUC ranged from 0.78 to 0.87. Cut-offs selected ranged from 8 (Nausea and Vomiting and Pain) to 97 (Physical Functioning). All had adequate sensitivity (above 0.70) except the Financial Difficulties scale (0.64). Specificity ranged from 0.61 to 0.88. Four of the cut-off scores differed by treatment status.

Conclusion: Cut-offs with adequate sensitivity were calculated for nine EORTC QLQ-C30 scales for use with YAs with cancer. Cut-offs are key to interpretability and use of the EORTC QLQ-C30 in routine care to identify patients with supportive care need.

Keywords: Oncology; Patient-reported outcomes; Quality of life; Routine care; Supportive care needs; Young adult.

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Conflict of interest statement

The authors declare no conflict of interests.

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