caa a22 4500 475847644 CHVBK 20180406123919.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1008918310251 doi (NATIONALLICENCE)springer-10.1023/A:1008918310251 The EORTC breast cancer-specific quality of life questionnaire (EORTC QLQ-BR23): Translation and validation study of the Iranian version [Elektronische Daten] [A. Montazeri, I. Harirchi, M. Vahdani, F. Khaleghi, S. Jarvandi, M. Ebrahimi, M. Haji-Mahmoodi] The objective of this study was to test the reliability and validity of the Iranian version of the European Organization for Research and Treatment of Cancer (EORTC) Breast Cancer-Specific Quality of Life Questionnaire (QLQ-BR23). The English-language version of the questionnaire was translated into Persian (Iranian language) and its final form was approved by the EORTC Study Group on Quality of Life and then it was used in this study. The questionnaire was administered at two points in time to a consecutive sample of 168 newly diagnosed breast cancer patients and almost all of them (99%) found the questions easy to understand and acceptable. Cronbach's α coefficient for multi-item scales (to test reliability) ranged from 0.63 to 0.95 at baseline and from 0.75 to 0.92 at follow-up administration of the questionnaire. Validity analysis was performed using known-groups' comparison analysis. The results showed that all functional and symptom scales discriminated between sub-groups of patients differing in clinical status as defined by their performance status and disease stage. In addition, all functional and symptoms scales detected change over time, as a function of changes in patients' performance status. In general, the findings of this study indicated that the Iranian version of the EORTC QLQ-BR23 is a reliable and valid supplementary measure of the quality of life in breast cancer patients and can be used in clinical trials and studies of outcome research in oncology. Kluwer Academic Publishers, 2000 Breast cancer nationallicence EORTC QLQ-BR23 nationallicence Iran nationallicence Quality of life nationallicence Validation study nationallicence Montazeri A. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut Harirchi I. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut Vahdani M. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut Khaleghi F. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut Jarvandi S. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut Ebrahimi M. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut Haji-Mahmoodi M. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut Quality of Life Research Kluwer Academic Publishers 9/2(2000-03-01), 177-184 0962-9343 9:2<177 2000 9 11136 https://doi.org/10.1023/A:1008918310251 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008918310251 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Montazeri A. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut NATIONALLICENCE 700 1- Harirchi I. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut NATIONALLICENCE 700 1- Vahdani M. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut NATIONALLICENCE 700 1- Khaleghi F. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut NATIONALLICENCE 700 1- Jarvandi S. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut NATIONALLICENCE 700 1- Ebrahimi M. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut NATIONALLICENCE 700 1- Haji-Mahmoodi M. Iranian Centre for Breast Cancer (ICBC), Tehran, Iran aut NATIONALLICENCE 773 0- Quality of Life Research Kluwer Academic Publishers 9/2(2000-03-01), 177-184 0962-9343 9:2<177 2000 9 11136 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer