Validity and reliability of the European Organization for Research and Treatment in Cancer Quality of Life Questionnaire (EORTC QLQ): experience from Kuwait using a sample of women with breast cancer

Alawadhi, Shafika A.; Ohaeri, Jude U.

doi:10.4103/0256-4947.67083

Cited by 28 publications

(41 citation statements)

References 22 publications

(35 reference statements)

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“…To some extent, our results were similar and confirmative in the area of role functioning with other reported studies in Kuwaiti women with breast cancer[ 21 ] and in UAE Awad et al . [ 20 ] and Lebanese patients with breast cancer.…”

Section: Discussionsupporting

confidence: 92%

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An assessment of reliability and validity of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 among breast cancer patients in Qatar

Bener

Alsulaiman

Doodson

et al. 2017

J Family Med Prim Care

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Introduction:Breast cancer has been the most common cancer type that affects women worldwide and subsequent treatment is often associated with considerable psychological and quality of life (QoL).Aim:This study aimed to assess psychometric properties of the Arabic version of the European Organization for Research and Treatment of Cancer (EORTC) general QoL questionnaire (QLQ-C30) for breast cancer patients in Qatar.Materials and Methods:This is a cross-sectional hospital-based study conducted on 678 breast cancer patients using Arabic version of the EORTC QLQ-C30 tool.Results:The mean age of women was 47.7 ± 10.2 years and 33.4% of women had consanguineous parents. Six subscales out of the nine met the standards of reliability with coefficients ranging from 0.55 to 0.89. The mean score of all functioning scales was high >55. Advanced breast cancer stages of III–IV had higher symptomatic scores significantly than those in early stages for the physical function, cognitive, fatigue, insomnia, appetite loss, constipation, and financial difficulties. Correlation coefficients between each item ranged from –0.113 to 0.960, and item 21 (tense) and item 23 (irritable) had strongest negative correlations with their corresponding emotional functioning subscale, whereas items 29 (physical condition) and 30 (overall QoL) had the strongest positive correlation with Global Health/QoL subscale. Item 6 (limited work) showed a higher correlation with fatigue (r = 0.749). Likewise, item 19 (pain interfered with daily activities) of the pain subscale had higher correlations with physical functioning, role functioning, and fatigue subscales.Conclusion:Qatari Arabic version of the EORTC QLQ-C30 showed acceptable psychometric properties, which is a reliable and valid instrument, that can be used by oncologists.

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Section: Discussionsupporting

confidence: 92%

“…Similar results were found in other studies reporting for Cronbach's alpha for six subscales. [ 19 20 21 ]…”

Section: Discussionmentioning

confidence: 99%

An assessment of reliability and validity of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 among breast cancer patients in Qatar

Bener

Alsulaiman

Doodson

et al. 2017

J Family Med Prim Care

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“…For this reason, studies assessing QoL have been slow among non-English speakers. This holds particularly true for Arabic speaker since Arabic Translation and validation of QoL tools has been rare with few exceptions [ 23 – 25 ]. This study thus provides an unmet need for the Arabic speaking population undergoing HDC and ASCT by translating and validating the FACT-BMT version [ 4 ] into the Arabic language.…”

Section: Discussionmentioning

confidence: 99%

Translation and validation of the Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) version 4 quality of life instrument into Arabic language

Soudy

Maghfoor

Elhassan

et al. 2018

Health Qual Life Outcomes

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BackgroundFunctional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) has been translated from English into several languages. Currently, there is no validated translation of FACT-BMT in Arabic. Here, we are reporting the first Arabic translation and validation of the FACT-BMT.MethodsThe study was approved by the Institutional Research Advisory Council. The Arabic translation followed the standard Functional Assessment of Chronic Illness Therapy (FACIT.org) translation methodology (with permission). Arabic FACT-BMT (50- items) was statistically validated. Cronbach’s alpha for internal consistency, Spearman’s rank correlation coefficients method for Inter-scale correlations and Principal Component Analysis for factorial construct validity was used.ResultsOne hundred and eight consecutive relapsed /refractory lymphoma patients who underwent high dose chemotherapy and autologous stem cell transplant were enrolled. There were 68 males (63%) and 40 females (37%) with a median age of 29 years (range 14–62). After Arabic questionnaire pre-testing (Cronbach’s alpha 0.744), the study included 108 patients. Cronbach’s alpha for the entire FACT-BMT indicated an excellent internal consistency (0.90); range (0.67 to 0.91). Cronbach’s alpha for sub-groups of social (0.78), emotional (0.67) and functional wellbeing was (0.88). Cronbach’s alpha for bone marrow transplant (0.81), FACT-General (0.89), and FACT- Trial Outcome Index (TOI); (0.91) also revealed excellent internal consistency. Patients had high scores in all domains of quality of life, indicating that most patients were leading a normal life. This translation of FACT-BMT in Arabic was reviewed and approved for submission by the FACIT.org.ConclusionsOur data reports the first translated, validated and approved Arabic version of FACT-BMT. This will help large numbers of Arabic speaking patients undergoing stem cell/bone marrow transplantation, across the globe.Electronic supplementary materialThe online version of this article (10.1186/s12955-018-0861-7) contains supplementary material, which is available to authorized users.

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“…According to published studies, 10 – 12 a problematic group was defined if GH/QoL or the functional scales score were ≤33 and symptom scale score was ≥66 on the EORTC QLQ-C30.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of reliability and validity of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30, Albanian version) among breast cancer patients from Kosovo

Shuleta-Qehaja

Sterjev

Shuturkova

2015

PPA

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Patients and methodsA sample of breast cancer patients (n=62 women) were interviewed for the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) in Albanian. Reliability of the questionnaire was considered acceptable if Cronbach’s alpha was ≥0.70. Item convergent-discriminant validity was tested through multitrait scaling analysis. Construct validity was tested under the hypotheses that QLQ-C30 interscale correlations would have an acceptable value of ≥0.40 and as well as by known group comparisons assessing differences of patient subgroups with reference to disease stage and education level.ResultsThe mean age of the patients was 50 years (standard deviation: 10.9 years). Cronbach’s alpha ranged from 0.54 for the cognitive functioning scale to 0.96 for the global health quality of life (GH/QoL) scale. In multitrait scaling analysis, the strength of Spearman’s correlations between an item and its own subscale was ≥0.40, with the exception of item 5 (ρ=0.22); results for item discriminant validity were satisfactory, with the exception of item 5, which showed higher correlation with other subscales than with its own physical functioning. The Spearman’s interscale coefficients generally were correlated with each other. Results of known group comparisons did not show significant differences in terms of disease stage. Regarding education level, patients with high school/university education had better functional scales scores only in certain subscales compared to other subgroups; furthermore, patients with secondary school education had better GH/QoL compared to other subgroups of patients.ConclusionThe EORTC QLQ-C30 (v3.0) in Albanian was found to be valid and reliable for women with breast cancer and could be considered as a starting point for further evaluation study.

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Validity and reliability of the European Organization for Research and Treatment in Cancer Quality of Life Questionnaire (EORTC QLQ): experience from Kuwait using a sample of women with breast cancer

Cited by 28 publications

References 22 publications

An assessment of reliability and validity of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 among breast cancer patients in Qatar

An assessment of reliability and validity of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 among breast cancer patients in Qatar

Translation and validation of the Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) version 4 quality of life instrument into Arabic language

Evaluation of reliability and validity of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30, Albanian version) among breast cancer patients from Kosovo

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