TY - JOUR
T1 - Independent validation of the japanese version of the EORTC QLQ-C15-PAL for patients with advanced cancer
AU - Miyashita, Mitsunori
AU - Wada, Makoto
AU - Morita, Tatsuya
AU - Ishida, Mayumi
AU - Onishi, Hideki
AU - Sasaki, Yasutsuna
AU - Narabayashi, Masaru
AU - Wada, Tomomi
AU - Matsubara, Mei
AU - Takigawa, Chizuko
AU - Shinjo, Takuya
AU - Suga, Akihiko
AU - Inoue, Satoshi
AU - Ikenaga, Masayuki
AU - Kohara, Hiroyuki
AU - Tsuneto, Satoru
AU - Shima, Yasuo
N1 - Publisher Copyright:
© 2015 American Academy of Hospice and Palliative Medicine.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - Context Although the psychometric properties of the Japanese version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 15-Palliative Care (EORTC QLQ-C15-PAL) have been examined previously, that study had several limitations, for example, small sample size. Objectives To examine the validity and reliability, including test-retest reliability, of the Japanese version of EORTC QLQ-C15-PAL for cancer patients with metastasis or recurrence. Methods A cross-sectional anonymous questionnaire was administered to cancer patients who were being treated on an oncology inpatient ward, in an oncology outpatient clinic, and in seven inpatient palliative units in Japan, from August 2007 to March 2008. Results Data from a total of 312 cancer patients were analyzed. The proportion of missing values was less than 4% for all items. The factor structure was reproduced identically with the original EORTC QLQ-C15-PAL, English version. The correlation of subscales showed a reasonable matrix. Cronbach's alpha coefficients were 0.76 to 0.86, and intraclass correlation coefficients, which indicate test-retest reliability, ranged from 0.52 to 0.77. All subscales, especially physical functioning, fatigue, and pain, were significantly correlated with self-reported Eastern Cooperative Oncology Group performance status. Conclusion The Japanese version of EORTC QLQ-C15-PAL has sufficient validity, acceptable reliability, and feasibility for patients with advanced cancer.
AB - Context Although the psychometric properties of the Japanese version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 15-Palliative Care (EORTC QLQ-C15-PAL) have been examined previously, that study had several limitations, for example, small sample size. Objectives To examine the validity and reliability, including test-retest reliability, of the Japanese version of EORTC QLQ-C15-PAL for cancer patients with metastasis or recurrence. Methods A cross-sectional anonymous questionnaire was administered to cancer patients who were being treated on an oncology inpatient ward, in an oncology outpatient clinic, and in seven inpatient palliative units in Japan, from August 2007 to March 2008. Results Data from a total of 312 cancer patients were analyzed. The proportion of missing values was less than 4% for all items. The factor structure was reproduced identically with the original EORTC QLQ-C15-PAL, English version. The correlation of subscales showed a reasonable matrix. Cronbach's alpha coefficients were 0.76 to 0.86, and intraclass correlation coefficients, which indicate test-retest reliability, ranged from 0.52 to 0.77. All subscales, especially physical functioning, fatigue, and pain, were significantly correlated with self-reported Eastern Cooperative Oncology Group performance status. Conclusion The Japanese version of EORTC QLQ-C15-PAL has sufficient validity, acceptable reliability, and feasibility for patients with advanced cancer.
KW - Palliative care
KW - advanced cancer patients
KW - neoplasms
KW - quality of life
KW - questionnaires
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U2 - 10.1016/j.jpainsymman.2014.11.299
DO - 10.1016/j.jpainsymman.2014.11.299
M3 - Article
C2 - 25593101
AN - SCOPUS:84929707906
SN - 0885-3924
VL - 49
SP - 953
EP - 959
JO - Journal of Pain and Symptom Management
JF - Journal of Pain and Symptom Management
IS - 5
ER -
