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Patient-reported outcome after radical cystectomy : translation and psychometric validation of the Swedish version of the Functional Assessment of Cancer Therapy Scale Vanderbilt Cystectomy Index

Stenzelius, Karin LU ; Lind, Anna Karin; Wanegård, Jenny and Liedberg, Fredrik LU (2016) In Scandinavian Journal of Urology2013-01-01+01:00 p.1-6
Abstract

Objective: The aim of this study was to translate and validate the Swedish version of the Functional Assessment of Cancer Therapy Scale – Vanderbilt Cystectomy Index (FACT-VCI). Materials and methods: For adaptation into Swedish, a multiprofessional team was used for translation including cultural adjustment, followed by back-translation. Test and retest in 10 individuals was followed by assessing metric properties in 75 consecutive patients with bladder cancer treated with radical cystectomy. Reliability and internal consistency were measured by Cronbach’s alpha. Face validity was tested with two laypersons and construct validity was tested by correlation to the dimensions in the Functional Assessment of Cancer Therapy Scale – General... (More)

Objective: The aim of this study was to translate and validate the Swedish version of the Functional Assessment of Cancer Therapy Scale – Vanderbilt Cystectomy Index (FACT-VCI). Materials and methods: For adaptation into Swedish, a multiprofessional team was used for translation including cultural adjustment, followed by back-translation. Test and retest in 10 individuals was followed by assessing metric properties in 75 consecutive patients with bladder cancer treated with radical cystectomy. Reliability and internal consistency were measured by Cronbach’s alpha. Face validity was tested with two laypersons and construct validity was tested by correlation to the dimensions in the Functional Assessment of Cancer Therapy Scale – General (FACT-G). Results: The translated Swedish instrument showed validity and reliability similar to the original, and the results were comparable to published studies using FACT-VCI. The correlation between the VCI sum score and FACT-G dimensions was significant in all dimensions and the item-total correlation was over 0.3; therefore, the construct validity was acceptable. In addition, it was possible to detect differences in separate items in the translated version of FACT-VCI between age groups, type of diversion and those treated with chemotherapy, even though the samples were small. Conclusions: The Swedish version of FACT-VCI is a valid and reliable instrument for use in the follow-up of patients with bladder cancer treated with urinary diversion. To measure changes after surgery, preoperative assessment with the related FACT-G instrument is advisable.

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author
organization
publishing date
type
Contribution to journal
publication status
in press
subject
keywords
Bladder cancer, cystectomy, health-related quality of life, questionnaire, validation
in
Scandinavian Journal of Urology2013-01-01+01:00
pages
6 pages
publisher
Taylor & Francis
external identifiers
  • Scopus:84976877517
ISSN
2168-1805
DOI
10.1080/21681805.2016.1201857
language
English
LU publication?
yes
id
8e0f7ee4-7e9a-4e67-a40c-3556d7b8f24b
date added to LUP
2016-07-18 15:04:59
date last changed
2016-09-20 03:07:15
@misc{8e0f7ee4-7e9a-4e67-a40c-3556d7b8f24b,
  abstract     = {<p>Objective: The aim of this study was to translate and validate the Swedish version of the Functional Assessment of Cancer Therapy Scale – Vanderbilt Cystectomy Index (FACT-VCI). Materials and methods: For adaptation into Swedish, a multiprofessional team was used for translation including cultural adjustment, followed by back-translation. Test and retest in 10 individuals was followed by assessing metric properties in 75 consecutive patients with bladder cancer treated with radical cystectomy. Reliability and internal consistency were measured by Cronbach’s alpha. Face validity was tested with two laypersons and construct validity was tested by correlation to the dimensions in the Functional Assessment of Cancer Therapy Scale – General (FACT-G). Results: The translated Swedish instrument showed validity and reliability similar to the original, and the results were comparable to published studies using FACT-VCI. The correlation between the VCI sum score and FACT-G dimensions was significant in all dimensions and the item-total correlation was over 0.3; therefore, the construct validity was acceptable. In addition, it was possible to detect differences in separate items in the translated version of FACT-VCI between age groups, type of diversion and those treated with chemotherapy, even though the samples were small. Conclusions: The Swedish version of FACT-VCI is a valid and reliable instrument for use in the follow-up of patients with bladder cancer treated with urinary diversion. To measure changes after surgery, preoperative assessment with the related FACT-G instrument is advisable.</p>},
  author       = {Stenzelius, Karin and Lind, Anna Karin and Wanegård, Jenny and Liedberg, Fredrik},
  issn         = {2168-1805},
  keyword      = {Bladder cancer,cystectomy,health-related quality of life,questionnaire,validation},
  language     = {eng},
  month        = {07},
  pages        = {1--6},
  publisher    = {ARRAY(0x9419f60)},
  series       = {Scandinavian Journal of Urology2013-01-01+01:00},
  title        = {Patient-reported outcome after radical cystectomy : translation and psychometric validation of the Swedish version of the Functional Assessment of Cancer Therapy Scale Vanderbilt Cystectomy Index},
  url          = {http://dx.doi.org/10.1080/21681805.2016.1201857},
  year         = {2016},
}