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Swedish Version of the Distress Thermometer: Validity Evidence in Patients With Colorectal Cancer
Sophiahemmet Högskola.ORCID-id: 0000-0003-3660-6306
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2018 (Engelska)Ingår i: The Journal of the National Comprehensive Cancer Network, ISSN 1540-1405, E-ISSN 1540-1413, Vol. 16, nr 8, s. 959-966Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background: The objective of this study was to validate the NCCN Distress Thermometer (DT), including the accompanying Problem List (PL), in a Swedish population of patients diagnosed with colorectal cancer (CRC).

Methods: A total of 488 patients diagnosed with CRC completed the DT/PL and EORTC core quality-of-life questionnaire (QLQ-C30) before surgery. Construct validity of the PL was analyzed using a confirmatory factor analysis. Internal consistency reliability (ICR) was tested using Cronbach's alpha coefficient. Correlations between the reported PL areas and QLQ-C30 function scales were used to explore convergent validity. Discriminant validity was examined by evaluating associations between the DT and QLQ-C30 measures of overall health-related quality of life (HRQoL). R

esults: Findings showed that the Swedish translation of the DT/PL is consistent with the original English version. The DT has good ICR, with the total number of reported problems significantly correlating with DT scores (r=0.67; P<.001). Analysis of convergent validity indicated that the PL areas significantly correlated with QLQ-C30 function scales, with emotional problems showing the highest correlation (r=0.76; P<.001), and item-level correlation analyses showed significant correlations between symptoms. There was also good discriminant validity between the DT and the QLQ-C30 in terms of HRQoL, including overall health status (r=-0.49; P<.001) and overall quality of life (r=-0.57; P<.001). Furthermore, there was good discriminant validity between the DT and QLQ-C30 regarding poor, moderate, and excellent HRQoL.

Conclusions: These findings provide validity evidence regarding the DT, including the PL. Findings also show that the DT has good potential for screening distress-related practical, family, emotional, and physical problems during the cancer trajectory in Swedish-speaking patients. Additionally, the DT seems to be an effective screening tool to detect patients with poor, moderate, and excellent HRQoL.

Ort, förlag, år, upplaga, sidor
2018. Vol. 16, nr 8, s. 959-966
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URN: urn:nbn:se:shh:diva-3111DOI: 10.6004/jnccn.2018.7027PubMedID: 30099372OAI: oai:DiVA.org:shh-3111DiVA, id: diva2:1241687
Tillgänglig från: 2018-08-24 Skapad: 2018-08-24 Senast uppdaterad: 2018-08-24Bibliografiskt granskad

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Håkanson, Cecilia
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Sophiahemmet Högskola
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