Psychometric properties of the Japanese version of the Quality Of Life-Cancer Survivors Instrument.
The purpose of this study was to describe the psychometric properties of the Japanese version of the Quality of Life-Cancer Survivors Instrument (QOL-CS-J) developed in the U.S. This study was conducted as a mail survey to survivors of more than 5 years post curative resection for non-small-cell lung cancer (NSCLC) and who had participated in an earlier survey. This survey included the medical and demographic factors, the QOL-CS scores, and the Medical Outcome Study 36-Item Short Form (SF-36). A total of 113 survivors completed the survey. To confirm the reliability, the Cronbach's alpha coefficient of each subscale was calculated as an internal consistency (alpha = 0.65-0.89). To confirm the validity of the trial as conducted, Pearson's correlation coefficients between the subscales of the QOL-CS and the subscales of the SF-36 were calculated. There were moderate correlations between associated subscales including QOL-CS physical to SF-36 bodily pain (r = 0.45) and vitality (r = 0.52), QOL-CS psychological to SF-36 mental health (r = 0.55), QOL-CS social to SF-36 general health perception (r = 0.31) and mental health (r = 0.47), and QOL-CS total to each subscale of SF-36 (r = 0.25-0.64). Findings demonstrated that the QOL-CS-J adequately measured the QOL in long-term NSCLC survivors.
Fujimori
Maiko
M
Psycho-Oncology Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, Japan.
Kobayakawa
Makoto
M
Nakaya
Naoki
N
Nagai
Kanji
K
Nishiwaki
Yutaka
Y
Inagaki
Masatoshi
M
Uchitomi
Yosuke
Y
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002289:Carcinoma, Non-Small-Cell Lung / Q000175:diagnosis / Q000523:psychology*; D005260:Female; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000175:diagnosis / Q000523:psychology*; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000379:methods*; D011788:Quality of Life; D017741:Survivors / Q000523:psychology*