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An analysis of the psychometric properties of the translated versions of the European Organisation for the Research and Treatment of Cancer QLQ CX24 questionnaire in the two South African indigenous languages of Xhosa and Afrikaans
Author(s) -
Toit G.C.,
Kidd M.
Publication year - 2016
Publication title -
european journal of cancer care
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 67
eISSN - 1365-2354
pISSN - 0961-5423
DOI - 10.1111/ecc.12333
Subject(s) - xhosa , cronbach's alpha , medicine , cervical cancer , quality of life (healthcare) , internal consistency , indigenous , cancer , clinical psychology , psychometrics , linguistics , nursing , philosophy , ecology , biology
This study evaluates the psychometric properties of the Xhosa and Afrikaans version, the European Organization for Research and Treatment of Cancer ( EORTC ) of the Quality of Life Questionnaire Cervical Cancer Module ( QLQ ‐ CX 24). Translated Xhosa and Afrikaans versions, EORTC QLQ ‐ CX 24 and the core questionnaire (the EORTC QLQ ‐C30) were completed by 66 Xhosa and 142 Afrikaans speaking women newly diagnosed with cervical cancer. Construct reliability and validity of the EORTC QLQ ‐ CX 24 questionnaire were assessed via factor analysis, multi‐trait scaling analyses and known group comparisons. The mean age was similar in the groups with a mean age of the Xhosa group (52 year) and Afrikaans group (49.2 year) ( P = 0.25). The study groups had a high unemployment rate of, respectively, 52% (Xhosa) and 51% (Afrikaans) ( P = 0.35). The Xhosa group had a statistically significant higher incidence of advanced stage ( III and IV ) disease ( P = 0.006). Scale reliability was confirmed by Cronbach's α coefficients for internal consistency, which ranged from 0.73 to 0.81 (Xhosa) and 0.73 to 0.76 (Afrikaans). Clinical validity of both language versions was demonstrated by the ability to discriminate among different stages of cervical cancer. The translated Xhosa and Afrikaans versions of the EORTC QLQ ‐ CX 24 were found to be reliable and valid measure of quality of life of women with cervical cancer.