The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30): Validation of English version in Singapore

Luo, Nan; Fones, Calvin; Lim, Siak Piang; Xie, Feng; Thumboo, Julian; Li, S C

doi:10.1007/s11136-004-4782-z

Cited by 71 publications

(97 citation statements)

References 25 publications

(24 reference statements)

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“…The cognitive functioning scale showed poor internal consistency at all levels of analysis. Our findings were similar to several other validation studies involving the EORTC QLQ-C30 in many Asian countries and language settings such as China (Cheng et al, 2011), Indonesia (Perwitasari et al, 2011), Singapore (Luo et al, 2005), Korea (Yun et al, 2004), Turkey (Guzelant et al, 2004), Iran (Hajebrahimi et al, 2013), and Malaysia (breast cancer) (Yusoff N et al, 2010). All these studies reported a poor internal consistency coefficient for the cognitive functioning scale (Cronbach's alpha ranges from 0.19 to 0.67).…”

Section: Discussionsupporting

confidence: 91%

“…This indicated that, in our setting, a few of the EORTC QLQ-C30 scales differentiated between patients on the dichotomized performance scale. This is comparable to studies in Indonesia (Perwitasari et al, 2011) and Singapore (Luo et al, 2005). However, the Korean version of the EORTC QLQ-C30 reported a significant difference between patients in subgroups of performance scale as measured using the Eastern Oncology Group (ECOG) scale.…”

Section: Discussionsupporting

confidence: 80%

“…The cognitive functioning scale was comprised of items for memory and concentration. These two items were not necessarily strongly associated with each other (Luo et al, 2005). Therefore, a lack of high internal consistency between these two items in the scale could be expected.…”

Section: Discussionmentioning

confidence: 95%

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Psychometric Validation of the Malaysian Chinese Version of the EORTC QLQ-C30 in Colorectal Cancer Patients

Magaji

Moy

Roslani

et al. 2016

Asian Pacific Journal of Cancer Prevention

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 80%

See 1 more Smart Citation

Psychometric Validation of the Malaysian Chinese Version of the EORTC QLQ-C30 in Colorectal Cancer Patients

Magaji

Moy

Roslani

et al. 2016

Asian Pacific Journal of Cancer Prevention

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“…Other studies showed similar values, ranging from 0.62 to 0.94 [6][7][8]10,23 . For the BR23 module, internal consistencies for functional and symptom scales were 0.78 and 0.83, respectively.…”

Section: Discussionmentioning

confidence: 52%

Validity, reliability and understanding of the EORTC-C30 and EORTC-BR23, quality of life questionnaires specific for breast cancer

Michels

Latorre

Maciel

2013

Rev. bras. epidemiol.

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Objective: To validate and assess reliability and understanding of the EORTC-C30 quality of life questionnaire and its breast cancer specific module, the EORTC-BR23. Methods: This study was conducted at the AC Camargo Cancer Hospital, São Paulo, Brazil. A total of 100 women diagnosed with breast cancer were interviewed. Internal consistency, confirmatory factorial analysis, convergent validity, construct validity and degree of understanding were examined. Reliability was assessed by comparison of means at times 1 and 2, inter-class coefficient and Bland-Altman graphics. Results: Cronbach's alpha ranged from 0.72 to 0.86 for the EORTC-C30 and from 0.78 to 0.83 for the EORTC-BR23 questionnaire. Most questions were confirmed in the confirmatory factorial analysis. In the construct validity analysis, the questionnaires were capable of differentiating patients with or without lymphedema, apart from the symptom scales of both questionnaires. Both questionnaires presented a significant correlation in most domains of the SF-36, in the convergent validity analysis. Only a few criticisms were reported concerning questions, and the mean grade of understanding was high (C30 = 4.91 and BR23 = 4.89). The questionnaires presented good rates of reliability, with the exception of the functional scale of the C30 and the symptom scale of the BR23. Conclusions: The EORTC-C30 and EORTC-BR23 quality of life questionnaires were validated, presented good rates of reliability and are easily understood, allowing them to be used in Brazil to assess quality of life among women with breast cancer. Keywords

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“…As QOL involves multiple respects such as health, culture, belief, and value, its measurement methods also vary; among these varied methods, questionnaire is a generally-adopted one. Presently, there are two kinds of rating scales which are used for measuring the influence of tumors on QOL: One kind is rating scales used for measuring the QOL of patients with various tumors (such as EORTC-QLQ-C30 proposed by the European cancer treatment study group), and the other is rating scales for measuring the QOL of patients with specific tumors (such as EORTC QLQ-OES18 for patients with EC and EORTC QLQ-BR23 for those with breast cancer) (Blazeby et al, 2003;Luo et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Influence of Personal Character on Quality of Life of Patients with Esophageal Cancer in North Henan Province and Influencing Factors

Lin

Mingsheng²,

Liu³

et al. 2012

Asian Pacific Journal of Cancer Prevention

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The aim of this study was to investigate QoL (quality of life) of patients with esophageal cancer in northern Henan province, China, and to accurate evaluate and reflect the relationship between patient characteristics and QoL. In the high risk area of esophageal cancer in the north of Henan province, 735 patients with esophageal cancer were investigated. The Eysenck personality questionnaire (EPQ) and QoL were analyzed by using the questionnaire of general situation, EPQ, QLQ-C30 and QLQ-OES18. The effects of personal character on the QoL of esophageal carcinoma patients were analyzed by SPSS 11.0 software. The QoL of esophageal cancer patients in Northern Henan region was significantly affected by character. The difference between choleric and type of melancholic temperament types was significant (P<0.01), also in OESEAT, OESTA, OESCO and OESSP (P<0.05). Differences in personal character can thus influence the quality of esophageal cancer patient lives.

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The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30): Validation of English version in Singapore

Abstract: This study provides preliminary evidence for the validity and reliability of the EORTC QLQ-C30 in English-speaking Singaporean cancer patients.

Cited by 71 publications

References 25 publications

Psychometric Validation of the Malaysian Chinese Version of the EORTC QLQ-C30 in Colorectal Cancer Patients

Psychometric Validation of the Malaysian Chinese Version of the EORTC QLQ-C30 in Colorectal Cancer Patients

Validity, reliability and understanding of the EORTC-C30 and EORTC-BR23, quality of life questionnaires specific for breast cancer

Influence of Personal Character on Quality of Life of Patients with Esophageal Cancer in North Henan Province and Influencing Factors

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